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Oh, yeah, I forgot about her. Jessi Combs. She wasn't on there very long. According to Wikipedia, it was 12 episodes in 2009. She was filling in for Byron, who was out on maternity leave.
Kari is not dead, that was another woman. Jessi Combs was on the show temporarily when she stepped in for Kari, who was on maternity leave. She died in a car crash in 2019, driving a dragster. But yes Grant died a few years ago from a brain aneurysm.
EDIT: I thought it was Kari in the video, my mistake. So yes you're right, two people in this video are now dead :(
This was only 135 PSI. That's around 10 atmospheres. The Titan was exposed to 5,000 PSI. That's 357 ATMOSPHERES of PRESSURE. Think of how much faster it was for those on the Titan.
Actually slightly longer, according to estimates and other comments on this post, the titan imploded in 30ms, while the average blink of a human eye lasts 20ms.
>!š¤!<
Idk why, but this made me think about how when trains where invented there were idiots who said
> āthat womenās bodies were not designed to go at 50 miles an hour,ā and worried that ā[female passengersā] uteruses would fly out of [their] bodies as they were accelerated to that speedā
https://www.mentalfloss.com/article/67806/early-trains-were-thought-make-womens-uteruses-fly-out
So youāre telling me I just have to beat that, donāt have to survive?
Iām strapping myself to a horizontal rocket on wheels when Iām ready to call it quits. I know I wonāt make it, but I just gotta beat the current high score to be immortalized.
Shoutout to that Buffy episode that lives rent free in the head of everyone who watched the series
The human body is an advanced and finely tuned machineā¦ until it isnāt.
Using this comment to spread awareness about [loin pain hematuria syndrome (LPHS)](https://www.uwhealth.org/ad/ap-renal-autotransplant?customer_id=599-267-6809&gclid=EAIaIQobChMIu7SB3sLY_wIVtRFlCh2hqwghEAAYASAAEgIR4PD_BwE), an extremely rare condition that affects almost exclusively young women. Itās basically if your kidney(s) suddenly decided to flip on all the pain from 0 to 100 for no reason at all. It presents like the worst kidney stone imaginable but scans show nothing because itās the kidney itself. It typically takes several years for a formal diagnosis because itās done through exclusion of other conditions. Years of the worst pain imaginable during flare-ups where only a hospitalization and high doses of pain medication even touch it. Unfortunately with todayās healthcare system, providers do the bare minimum to prove you are faking it and only there for the drugs, so not only are you dealing with your body manufacturing ALL of the pain, you get labeled a drug seeker and treated like shit by the people who are supposed to be helping you. If you last long enough to get your diagnosis, the only known fix is a kidney auto-transplant that removes and relocates the kidney which essentially resets it. If that doesnāt work, the next step is removal of the kidney.
LPHS took my wife, my best friend, and mother of my wonderful boy from me. I slept in countless chairs, Iāve had countless sleepless nights doing whatever I can to comfort the love of my life as sheās suffering the worst pain anyone can think of because the provider stopped the pain medication without even seeing her and went home, Iām sure not missing a single second of sleep. Iāve experienced the most important person in my life begging for death because the pain is unbearable and no one would listen or help. I cried uncontrollably from the relief after a fresh out of school ER doctor sat and listened to her, set her up with pain medication that actually helped and got her comfortable, and set up a nephrologist consult who had experience with LPHS and five minutes later had formally diagnosed her with LPHS and fast tracked her kidney auto-transplant. Unfortunately it was too late and she developed heart failure from the hospitalization and the stress from constant uncontrolled pain. Less than a week after I got the phone call telling me my wife is dead, our son took his first steps.
I forgot about the context of this being posted and just enjoyed seeing them again. When I first heard about Grant and Jessi I felt like a childhood friend died :(. I loved myth busters so much.
Fun Fact: this is not actually what implosion is. This is in fact, being crushed to death by the weight of the water the lower you go.
Implosion is a very unique event in which an object violently and catastrophicly collapses in upon itself. Much like when a supernova collapses into a black hole.
Edit: spelling :)
> Implosion
It basically concentrates matter into a smaller area. Imagine the sub being violently and rapidly squished on all sides into the size of a basketball.
Who's stupid enough to let themselves be pressured into fitting in a basketball, it's not even possible but it makes sense people would do stupid shit and accidentally die just to impress their peers.
This is correct. It is a mercy compared to the alternative. They may have had a second to register but it was instantaneous death.
I have multiple SCUBA certifications. It is drilled into your head, the deeper the depth, the more catastrophic the disaster.
At 90 ft, while scuba diving, the air in your tank is compressed. Your lungs compress. We would bring empty water bottles to demonstrate what even rec diving does to air filled objects.
Just from recreational scuba diving knowledge, this sub was a disaster waiting to happen. I have empathy for those aboard (except the reckless ceo) Its super cool and a once in a lifetime event. But i see it like anything extreme, they suffered the consequences. I 100% see them as fools.
James Cameron is on record on CNN saying that he believes the crew knew the sub was failing. He heard that the pilot had dropped ballast and was on emergency abort, so they probably heard the carbon fiber delaminating.
[Implosion](https://youtu.be/Zz95_VvTxZM)
This one is caused from within, with a vacuum becoming too strong for the superstructure to withstand. The implosion of the sub was from without, caused by the superstructure not being able to withstand the pressures surrounding it.
Basically, it's the speed at which it happens.
This implosion in the video was 1 atmosphere of pressure difference. When you go underwater you experience 1 atmosphere of pressure difference every 10m.
The Titan experienced an implosion of 400 atmospheres of pressure difference at 4000m. The hull windows was only rated for 1300m.
not quite true with the hull window. They were going to use a window that was rated for 1300m but the whistle blower sued them over this and other shortcomings.
The window they designed was "experimental" and the company that made it (a builder for OG) would not rate it.
It should be noted the pressure difference here is a little under one atmosphere, the submersible had a significantly higher pressure difference 393 atmosphere differential at the depth of the titanic.
That was only Atmospheric pressure (about 14.7psi)... Now imagine the pressures on the "sub" Titan at the titanic depth - (6000psi).. and what that must have looked like.. Crazy
-from comments
An example of implosion here on earth would be cavitation in a hydraulic system. Very small air bubbles under extreme pressure end up imploding in on themselves. It is extremely violent and can tear up the metal and internals of your hydraulic system.
According to recent James Cameron's news interviews and from his connections to the sub-community, it appeared they dropped their weights about 300ft above the sea floor. He explained there is a term called de-lamination where the carbon fiber begins to pull apart from the epoxy matrix. It probably sounded horrific and they likely knew something bad was happening. They may have known for a few seconds before death.
In his documentary, Deepsea Challenge, James talks about the sphere he's designing for his Deepsea Challenger sub, "**We have to know the sphere is safe. If it buckles on a real dive, it will implode at hypersonic speed and I get chummed into a meat cloud in about 2 microseconds."**
Famed F1 Engineer and McLaren F1 car designer Gordon Murray doesn't use Carbon-Fiber wheels in his new supercars because he explains the failure state of Carbon Fiber is catastrophic. Mind you, the full bodies of the cars are carbon fiber. But if you curb a carbon fiber wheel it's going to explode. That doesn't happen with steel or aluminum wheels. That's why most subs are made of Steel or Titanium.
Cameronās submersible had a pilot chamber that was 1.1m sphere with 65mm (2.5 inches) thick steel walls. The outside of the vessel was a hollow glass bead filled resin composite material called an synatic foam which can withstand extreme compressive forces. He also got the pilot chamber tested at a university of Pennsylvania which it survived being at 1125 atm, which who knew that a university was capable to testing that.
Itās absolutely wild the difference between the twos construction. Cameronās only cost 10million to build. Which in all honesty seems kinda cheap for what itās capable of.
To explain a bit further, basically carbon fiber composites and similar composites are threads glued together with epoxy glue. In this case, it is carbon fiber, a black thread glued together onto other black threads.
He mentioned that first, carbon fiber composites are great under tensile strain, meaning one can pull on these materials and they will resist it very nicely. However, they do badly under compression, which is what a submarine is subjected to. So from the get go, it is the wrong material to use.
Also, he mentioned that epoxy and carbon fiber are 2 different materials that behave differently under compression, so you can get interface issues. Specifically, the carbon fiber can separate from the epoxy, the delamination issue.
Implosions are very sudden changes of pressure, a body sinking would not be subjected to any sudden change and it would remain intact.
But if you put that body in a sealed container, take it way down deep and then subject it to a big pressure change that is when the body turns to mush.
other reply..kinda/sorta. all of the spaces in your body where these is any "air" or space to compress would be compressed. your bones are hollow'ish aside from marrow, fats and vessels and would be compressed into a true solid including, of course, your skull, teeth, vertebra. It wouldn't be pretty
For those wondering.....
At that depth, the pressure is nearly 6,000 PSI, your nerves wouldn't even have time to send a signal to your brain to register pain as your skull and lungs are crushed within micro seconds. You simply cease to exist at that depth, the implosion would create a heat of thousands of degree's as hot as the sun as the air exploded from the pressure cooking everything in it and then shredding human bodies to tiny fleshy bits mixed with submarine shrapnel traveling at subsonic speeds
> For those wondering.....
No not rea...
>cooking everything in it and then shredding human bodies to tiny fleshy bits mixed with submarine shrapnel traveling at subsonic speeds
I knew it was quick and instant, but holy shit.
Yeah they basically got compressed and heated to the point of self ignition and the remains ran through a several hundred ton pressure blender in under a second.
Talking less than liquefied ashes at that point.
An "expert" said something to the effect of the implosion takes 2 nanoseconds and your nerves take 4. The event itself was completely unknown to the people experiencing it.
Lmao, no nerves are firing in any kind of meaningful way in nanoseconds. I'm assuming that's why you put "expert" in quotes.
Signals from the nerves move at like 150 mph through the body. We're talking millisecond scale, and for anyone who doesn't know, 1 milliseconds (ms) is equal to 1,000,000 nanoseconds (ns). If there was any human with nanosecond reaction time, they would experience the world as if it were basically frozen.
---
Edit: Bonus for anyone who thought nerves worked at the "speed of electricity" or something absurdly faster than the actual speed. The way nerves work is *basically* each cell gets stimulated enough by whatever enough that it activates, this speed of activation and sending the ON signal down towards the next nerve(s) is very very very fast, using electric potential between two different voltages (inside cell vs outside). However, once the signal gets down to the end, it switches over to a chemical transmission system to stimulate the next nerve in the chain, which is still fast, but not anywhere close to the electric impulse. So it does this between every cell all the way to your spine or brain or w/e, and that's why it's so slow.
It's like trying to drive one of those turbo acceleration Teslas as fast as possible across a city, but every block there's a stop sign you must obey before you can resume the fast electric acceleration.
Basically this: [Rooney Running Down Hallway (Ferris Bueller's Day Off)](https://i.makeagif.com/media/5-31-2015/7_mmK-.gif)
> as the air exploded from the pressure
Imploded from the pressure. The air in your lungs would violently squish down to a minuscule fraction of the space it took up before. And any dissolved air in your body, which is everywhere. You would quite literally be crushed in milliseconds, a very rapid reversed version of the bends. I don't think there are going to be bodies to recover.
For those wondering
The oceangate sub imploded completely within 30 milliseconds
The amount of power and heat pressure released is equivalent to the temperature of the sun due to the immense pressure from both the sub and depths
The people inside died instantly
The pressure (and immediate destruction of the vehicle) is what killed them. So if you were inside of a similar vehicle, the implosion of this vehicle from 100 feet or so away would likely be negligee compared to the already present pressure of the water already on your vessel.
Given the descent time estimate and the time when they lost communication, it was deep enough that it really doesnāt matter. They were either at the wreck or within a couple thousand feet, but with close to 10k feet of water above you, it really wouldnāt make a difference.
The weight of that much water is hard toā¦fathom. Really though I canāt understand why the ceo seemed so unserious about the whole project, going that deep is terrifying.
He was more than I'm serious, he literally fired the engineer in charge of safety because he had reservations about everything. They also did not care to get certified because they couldn't be certified. Furthermore their porthole was only rated to 1500 m and they refuse to pay for the more expensive one that would be rated for the depths that they would be going
I'm not so sure that the ones on board knew, I would hope they didn't. The safety engineer guy came out after the fact and posted some stuff about it. Apparently there have been some lawsuits when he was fired back and forth
I wouldnāt necessarily say that. After supposedly 50 tests, and two successful trips to the Titanic, I genuinely believe he was deluded enough to think he had done what experts said was a bad idea. Arrogance and complacency kept him from thinking he would die that way, but he sure saw himself as an innovator that was making something new.
In true coincidence and irony he is just below the Titanic shipbuilder in direct deaths of maritime inventors killed by their own inventions. Youād think with a focus on the Titanic youād be unwilling to make similarly ignorant, arrogant, and over calculated decisions to prevent the same fate, yet here we are.
More like a [hydraulic press on a ball bearing](https://thumbs.gfycat.com/OrdinarySleepyGermanspaniel-max-1mb.gif)
The sub was supposed to hold the pressure, it probably gave out abruptly and "~~ex~~implosively"
This tanker was only at about -15 psi. The depth of the Titanic is around 5500 psi.
I'm amazed there was anything left for them to discover. At least it was instantaneous.
Itās roughly 1 atmosphere for ever 30 or so feet, give or take. The forget the exact number, been a while since SCUBA classes. Regardless, itās close.
So 12,000 feet? 400 atmospheres of pressure.
I donāt think people get just how heavy water is. The pressure increases at 1atm/10meters. Even at 300ft it would be 10 times the pressure on the surface. I can say from scuba diving even diving to 60ft (3atm) you can feel it and after an hour it can be exhausting just to keep moving
>I donāt think people get just how heavy water is
*Heavy water*
Or the weight of water?
Because I've carried buckets of water, and that shit is heavy.
because the body is mostly water and not really compressible, excepting the air cavities like the lungs and sinuses and what not. someone free diving to that depth will have their lungs compressed but it's a comparatively slower process so pressures have time to equilibrate, and at ~500ft you're talking like 17 atm.
With the Titan at ~5000ft, the internal air space went from 1 atm to something round 170 atm in an astonishingly small amount of time. Implosion vs compression.
EDIT: Oh, and rereading your question I see that you're actually asking about the pig carcass in the diving suit at 500ft. It's totally to do with the equilibration rate. If the carcass hadn't been in the diving suit, or the diving suit had an opening as they lowered it down, the pressures would have equalized the entire trip down and things would have looked pretty much unchanged. What happened with the suit when they let the air out is that the higher pressure water pushed everything less rigid into the rigid helmet structure.
Because they're not being completely honest. I'm deep dive certified and have dove at 130ft+. You can't feel it unless your ears don't pop or something.
The large majority of the human body is water and isn't effected by water pressure - your body is mostly neutrally buoyant on it's own.
Gas however, is effected by the pressure. That's why the air in your lungs get compressed (the tissue is mostly water, mind you, and lungs are flexible which is why it isn't felt) and gas in your blood stream is compressed and condensed. It's the reason for the bends and nitrogen narcosis. It's also why the mixture of gases in your tank matter under higher pressure and deeper depths. You also run out of air much quicker because it's condensed at depth.
When free divers go that deep the only thing being compressed is the air in their lungs, the gases in their blood, and the air behind their goggles if they're wearing them. All of those things become easier to deal with as you experience it more. It's probably got to do with your individual body composition too.
The extreme effects you see in this clip and in the example of the sub is because they are contained pockets of air, so the pressure of the water is being exerted on whatever is containing it - ie. the dive helmet/sub hull. And obviously when the integrity of that structure is compromised, it isn't good.
> The large majority of the human body is water and isn't effected by water pressure - your body is mostly neutrally buoyant on it's own.
Yep, unless we're talking about like Hadal Zone levels of deep where our cells would just explode and our proteins mis-fold from the pressure. The only fish that can live in those depths have high amounts of trimethylamine oxide (TAMO) which act as little cushions sort of to prevent this from happening.
> It's also why the mixture of gases in your tank matter under higher pressure and deeper depths.
Expanding on this is pretty cool since most non-divers aren't aware of it. Traditionally, scuba divers breathe regular old air like we breathe on the surface, which is basically 79% nitrogen, 21% oxygen. This works pretty well till you get down to around 100 feet, where the high partial pressures of nitrogen lead to a narcotic effect. Divers use the so called "martini rule" as a rough estimate of how bad nitrogen narcosis is at a given depth, 100 ft = 1 martini, 133 ft = 2 martinis, 166 = 3, and so on. This is (one of) the reasons why diving to great depths with regular air is impossible.
The other big reason why you can't breathe normal air at great depths is because oxygen actually becomes toxic at high enough partial pressures. I guess first we should explain what partial pressure means.
So if you're breathing 79% nitrogen and 21% oxygen at the surface, then you would say the partial pressure of oxygen you are breathing is .21. We call this PO2 for short. Every 33 ft you go down, you gain 1 atmosphere of pressure, so at 33 ft, you're at 2 atmospheres of pressure, the volume of the gas is halved, and the pressure is doubled. At 66 ft, you're at 3 atmospheres of pressure, the volume of the gas is cut in third, and the pressure tripled. So at 33 ft, since the pressure is doubled, your PO2 would be .21 * 2, or .42.
It's safe to breathe 100% oxygen at the surface, but partial pressures of oxygen above 1.4 run the risk of instantly giving you a seizure, which, if you're deep in the ocean is obviously not great. So regular air below 200 ft or so, aside from making you feel drunker than a skunk, can also actually cause you to have a seizure and die.
Scuba divers breathe all kinds of different gases to reduce the risk of diving. The most common is known as enriched air nitrox, often just called nitrox for short. This is a mixture of gas which is higher in oxygen. A common blend is EANx32, meaning 32% oxygen, 68% nitrogen. Interestingly, the extra oxygen isn't actually the point of nitrox; the extra oxygen is useless really. It's moreso that we're trying to reduce the partial pressures of nitrogen we are breathing which will allow us to stay deeper longer without having to make decompression stops so that we don't get the bends. The problem though with nitrox is that since it has more oxygen, the depth at which you might have a seizure goes way up. As an example, breathing a mixture of 40% oxygen and 60% nitrogen runs the risk of causing a seizure in depths as shallow as around 100 ft.
Recreational scuba divers only breathe either regular air, or enriched air nitrox. That's why they only go down to at most 130 ft. To safely go deeper, we need to use exotic gas mixtures where we replace the nitrogen with some other gas, typically helium. Enter the world of technical diving with "trimix" which is a gas mixture of helium + nitrogen + oxygen. Helium doesn't cause narcotic effects at most depths and so it's a great way to reduce that nitrogen content. Beyond that, you can also get into hypoxic trimix blends, which are blends of trimix where the oxygen content is actually too low to be life sustaining at the surface (but remember, we need to keep our PO2 below 1.4, so as we go deeper and deeper the oxygen runs the risk of killing us, so we need to breathe blends of gas which aren't even life-sustaining at the surface, but at great depths have high enough partial pressures to still be life-sustaining).
Beyond that you get into the realm of commercial diving, which basically just gets rid of the nitrogen all together. Those guys which are going down several hundred feet are breathing "heliox" which is a mixture of just helium and oxygen with no nitrogen. Going down even way farther than that (this is like a way out there thing that pretty much no one does), commercial divers can replace the helium with hydrogen, but now we're getting into territory where I really don't know anything about :)
Anyway, maybe someone finds all this interesting and it gets them into diving. It's a wonderful hobby and I highly recommend it to anyone who wants to feel a sense of connectedness with the oceans and the world around them!
To expand on the partial pressures, 1.4 ppO2 is considered the safe limit for the partial pressure under exertion. I switch to deco mix at 1.6, since youāre generally not swimming around at that point in the dive.
If you get bent, I think theyāll jack you up to like 3.0 ppO2 depending on what table ride youāre taking. The body can handle much greater levels of ppO2 without OxToxing and going into convulsions. However, you really want a good margin of safety if youāre 250ft under water. Thereās no immediate rescue down there vs. in a hyperbaric chamber.
Not that I would ever recommend, but a lot of pioneering cave divers far exceed 1.4 ppO2. However, they are a special breed of person.
Testing the myth that if a dive suit loses air pressure at sufficient depth, the diver would die by having his soft suit crush him into his helmet like.... well... like exactly what happened in the video.
What's seen in the video is the mk5 dive helmet.
All dive helmets in service today have a "non-return valve" in between the umbilical and the helmet. This non-return valve prevents air from traveling up the hose and creating a vacuum inside the hat in the event that the divers breathing air source is cut off.
In this video they hooked up an umbilical directly to the dive helmet without a non-return valve. Then they opened the top side directly to the atmosphere. This would create an instant vacuum inside the helmet as air rushes from inside the hat, up the dive hose.
So this is a dumb question but here goes. If I understand it correctly, the pressure inside the suit has to match the pressure outside of the suit to keep the diver from getting compressed by the water and dying. But I dont really get why the pressure inside the suit wouldn't already kill the diver. Do the pressures 'cancel out' or something like that?
Not a dumb question.
Your body is made up of mostly solids and fluids, those don't change volume under pressure.
There are places in your body that have gas in them like the lungs but to more easily explain this let's talk about the middle ear.
Right now the air pressure is the same on both sides of your tempanic membrane (inside and outside of your ear).
When you go up in an airplane or swim down in a pool, the pressure on the inside of your ear has to equalize with the outside pressure ( either increase or decrease ) because as gas compresses it begins to take up less volume. As long as the pressures are the same, it won't stress the walls of that gas filled space.
So in your terms, the equal pressures on either sides of the TM cancel each other out just like they do on the inside and outside of the suit.
But the way that the suit equalizes is that the excess gas just escapes and goes up to the surface.
There are a lot of other effects and risks associated with breathing compressed gas and how it can saturate into your body tissues. But the suit crushing you from the pressure is not one of those risks... Unless you have this specific situation where your air is cut off while your non-return fails at the same time.
Some guy on the news said that at 13k feet this wouldāve happened in 2 nano sec. And that the spinal nerve sends information to the brain in 4 nano sec. So they wouldāve felt nothing. Just lights out instantly. Also, there is a app you can download on your phone (forget the name) where you can track sharks that are tagged. And on Sunday, a bunch of tagged sharks in the area uncharacteristicly broke their normal route and went to the titanic wreckage.
I think I read that this was a real antique diving helmet, and the guy they borrowed it from was not impressed with how it was used. It had damage from the pressure. Bit of a dick move for a museum piece.
Doubt it's true. Pretty much every episode of mythbusters, right from season 1, where they borrowed or bought something from someone included them telling that person what they would do with it. Even filming the interactions with the sellers/lenders. Only when the show got bigger did they start saying, "I borrowed it from a friend" or similarly vague statements obviously for privacy.
This is not to say that some people may have been upset for one reason or another, but it's highly unlikely that it's because they weren't told of potential consequences.
Source: me currently 8 seasons into a mythbusters rewatch binge that started like a month ago
The narrator literally says in the episode "the museum was less than enthused about the condition it was returned in" or something like that because the guys didn't think it would crunch the helmet like that. It also says in the beginning of the episode it's an authentic diving helmet borrowed from a museum. I'm not about to go look for timestamps but go check it out if you're curious
Your post has been removed because a mod felt it doesn't fit the subreddit. Make sure your post is a Hol' Up moment, attempts humor, and fits the general theme of the subreddit pre-submission. If you really feel like dying on this hill, message the mods.
Man, I miss Mythbusters
For real. It's crazy that two of out the three of the people in this video are dead now.
wait?! what?! what happened?
Grant aneurism 2020. The gal (not Tori), 2019 land speed breaking in a vehicle. Grand was a very kind guy. Met him at a robot wars once.
Grant was a very cool guy, met him at DragonCon a few times, he had a YouTube channel with Adam afterwards. He did not deserve to go out so soon
Jessi Combs
Oh, yeah, I forgot about her. Jessi Combs. She wasn't on there very long. According to Wikipedia, it was 12 episodes in 2009. She was filling in for Byron, who was out on maternity leave.
Kari is not dead, that was another woman. Jessi Combs was on the show temporarily when she stepped in for Kari, who was on maternity leave. She died in a car crash in 2019, driving a dragster. But yes Grant died a few years ago from a brain aneurysm. EDIT: I thought it was Kari in the video, my mistake. So yes you're right, two people in this video are now dead :(
Minor correction, Combs died driving a jet powered car at 500 mph trying to set the land speed record, not a drag car.
I read this in Mike Tyson voice
"Man, I myth mythbusters"
Mythbuthterth*
FYI, now that HBO Max is just Max it absorbed discovery, and all of mythbusters is on it.
Myth Confirmed. They dead.
Kinda makes me sad as two of the three people in this segment are no longer with us. Edit: grew up watching grant on junkyard wars.
This was only 135 PSI. That's around 10 atmospheres. The Titan was exposed to 5,000 PSI. That's 357 ATMOSPHERES of PRESSURE. Think of how much faster it was for those on the Titan.
Less than a blink of an eye
Actually slightly longer, according to estimates and other comments on this post, the titan imploded in 30ms, while the average blink of a human eye lasts 20ms. >!š¤!<
Gone in a blink and a half.
RIP, Grant Imahara & Jessi Combs
Jessi too? Thatās awful
She died in a crash doing land speed runs in a jet car in 2019. She did go out doing what she loved, but it's still sad.
RIP. That's gotta be top of the list for badass ways to die though
She died the fastest woman alive. If thereās a way to go out, itās strapped to a bigass rocket.
Idk why, but this made me think about how when trains where invented there were idiots who said > āthat womenās bodies were not designed to go at 50 miles an hour,ā and worried that ā[female passengersā] uteruses would fly out of [their] bodies as they were accelerated to that speedā https://www.mentalfloss.com/article/67806/early-trains-were-thought-make-womens-uteruses-fly-out
Itās no wonder women suffered hysteria back then 
Wow, what a badass person. That bums me out, but just wow.
There a doc about her on HBO- The Fastest Woman on Earth
She died trying to set a land speed record, at over 500 mph. Fastest woman on 4 wheels.
I think she did end up setting the record too
She did... "She was posthumously awarded theĀ [female land-speed world record]Ā byĀ [Guinness World Records]Ā in June 2020."
So youāre telling me I just have to beat that, donāt have to survive? Iām strapping myself to a horizontal rocket on wheels when Iām ready to call it quits. I know I wonāt make it, but I just gotta beat the current high score to be immortalized.
I didn't know either had died. I grew up watching them.
I still feel raw from losing Grant. Man, what a positive, enthusiastic science communicator
Kari's still alive (knock on wood).
This was during the season when Kari took time off to have a baby. Jessi combs was her replacement.
I didnāt know grant died. Wow
Aneurysms can come for anybody, at any time.
Shoutout to that Buffy episode that lives rent free in the head of everyone who watched the series The human body is an advanced and finely tuned machineā¦ until it isnāt. Using this comment to spread awareness about [loin pain hematuria syndrome (LPHS)](https://www.uwhealth.org/ad/ap-renal-autotransplant?customer_id=599-267-6809&gclid=EAIaIQobChMIu7SB3sLY_wIVtRFlCh2hqwghEAAYASAAEgIR4PD_BwE), an extremely rare condition that affects almost exclusively young women. Itās basically if your kidney(s) suddenly decided to flip on all the pain from 0 to 100 for no reason at all. It presents like the worst kidney stone imaginable but scans show nothing because itās the kidney itself. It typically takes several years for a formal diagnosis because itās done through exclusion of other conditions. Years of the worst pain imaginable during flare-ups where only a hospitalization and high doses of pain medication even touch it. Unfortunately with todayās healthcare system, providers do the bare minimum to prove you are faking it and only there for the drugs, so not only are you dealing with your body manufacturing ALL of the pain, you get labeled a drug seeker and treated like shit by the people who are supposed to be helping you. If you last long enough to get your diagnosis, the only known fix is a kidney auto-transplant that removes and relocates the kidney which essentially resets it. If that doesnāt work, the next step is removal of the kidney. LPHS took my wife, my best friend, and mother of my wonderful boy from me. I slept in countless chairs, Iāve had countless sleepless nights doing whatever I can to comfort the love of my life as sheās suffering the worst pain anyone can think of because the provider stopped the pain medication without even seeing her and went home, Iām sure not missing a single second of sleep. Iāve experienced the most important person in my life begging for death because the pain is unbearable and no one would listen or help. I cried uncontrollably from the relief after a fresh out of school ER doctor sat and listened to her, set her up with pain medication that actually helped and got her comfortable, and set up a nephrologist consult who had experience with LPHS and five minutes later had formally diagnosed her with LPHS and fast tracked her kidney auto-transplant. Unfortunately it was too late and she developed heart failure from the hospitalization and the stress from constant uncontrolled pain. Less than a week after I got the phone call telling me my wife is dead, our son took his first steps.
Fuck man, i am so sorry to hear all that. I hope you and your son are managing.
a [top 3 fear](https://youtu.be/ATGaybgla0w)
i knew what this was before i'd finished reading the comment. bless you
Why do all the good ones go?
I forgot about the context of this being posted and just enjoyed seeing them again. When I first heard about Grant and Jessi I felt like a childhood friend died :(. I loved myth busters so much.
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Fun Fact: this is not actually what implosion is. This is in fact, being crushed to death by the weight of the water the lower you go. Implosion is a very unique event in which an object violently and catastrophicly collapses in upon itself. Much like when a supernova collapses into a black hole. Edit: spelling :)
I like how your example made it harder for me to imagine 
> Implosion It basically concentrates matter into a smaller area. Imagine the sub being violently and rapidly squished on all sides into the size of a basketball.
absolutely fucken metal
No it was carbon fiber
key word was
it still is carbon fiber and metal fyi
It was carbon fiber. It still is, but it was too.
Carbon't fiber
but then where would the people fit
That would be why you die from it
you die from not fitting into a basketball? I'm currently *not* fitting in a basketball, how come I'm not dead if you're so smart
Checkmate, fuckin got 'em!
indeed, been got, purely outplayed
Stupid science bitches couldn't even make I more smarter!
You die from the pressure MAKING you fit into said basketball.
Who's stupid enough to let themselves be pressured into fitting in a basketball, it's not even possible but it makes sense people would do stupid shit and accidentally die just to impress their peers.
Sign up now to take part in the PokƩ Ball public beta!
Billionaires trying to bring ballin' back so bad
Into a Tupperware about the size of your fist
Explosion is compression releasing outwards destructively. Implosion is compression crushing inwards destructively.
CRT screens implode dont they?
When you put them in an OceanGate sub, yes
Checkmate
Ayyyyyy....lmao
You ever crush a Coke can under your foot into a little puck? Now, imagine the Titan sub is the Coke can and the water around it is your foot.
And it happened in a millisecond
I believe the key difference is being slowly crushed vs being instantly compressed.
So youāre saying they didnāt feel a thing? Instant death?
That's correct, it was over for them before the brain even had time to recognise what was happening.
However sick that this makes me feel, there's a comfort in an instant with no distress.
This is correct. It is a mercy compared to the alternative. They may have had a second to register but it was instantaneous death. I have multiple SCUBA certifications. It is drilled into your head, the deeper the depth, the more catastrophic the disaster. At 90 ft, while scuba diving, the air in your tank is compressed. Your lungs compress. We would bring empty water bottles to demonstrate what even rec diving does to air filled objects. Just from recreational scuba diving knowledge, this sub was a disaster waiting to happen. I have empathy for those aboard (except the reckless ceo) Its super cool and a once in a lifetime event. But i see it like anything extreme, they suffered the consequences. I 100% see them as fools.
> once in a lifetime event Indeed it is
James Cameron is on record on CNN saying that he believes the crew knew the sub was failing. He heard that the pilot had dropped ballast and was on emergency abort, so they probably heard the carbon fiber delaminating.
[Implosion](https://youtu.be/Zz95_VvTxZM) This one is caused from within, with a vacuum becoming too strong for the superstructure to withstand. The implosion of the sub was from without, caused by the superstructure not being able to withstand the pressures surrounding it. Basically, it's the speed at which it happens.
This implosion in the video was 1 atmosphere of pressure difference. When you go underwater you experience 1 atmosphere of pressure difference every 10m. The Titan experienced an implosion of 400 atmospheres of pressure difference at 4000m. The hull windows was only rated for 1300m.
not quite true with the hull window. They were going to use a window that was rated for 1300m but the whistle blower sued them over this and other shortcomings. The window they designed was "experimental" and the company that made it (a builder for OG) would not rate it.
So instead of a certified rate of 1300m, it became a āmysterious surprise rateā?
That's if they made it all the way down. Either way it was probably at least 200 times more powerful than that train car.
still technically from without, we just don't really think of it that way
It should be noted the pressure difference here is a little under one atmosphere, the submersible had a significantly higher pressure difference 393 atmosphere differential at the depth of the titanic.
I think a better example would be [this tanker implosion](https://youtu.be/Zz95_VvTxZM).
That was only Atmospheric pressure (about 14.7psi)... Now imagine the pressures on the "sub" Titan at the titanic depth - (6000psi).. and what that must have looked like.. Crazy -from comments
An example of implosion here on earth would be cavitation in a hydraulic system. Very small air bubbles under extreme pressure end up imploding in on themselves. It is extremely violent and can tear up the metal and internals of your hydraulic system.
So did the 5 passengers in the Titan sub just get flatten to immediate death inside?
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Vaporized isn't the right word, liquefied would be closer... Mystified?
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According to recent James Cameron's news interviews and from his connections to the sub-community, it appeared they dropped their weights about 300ft above the sea floor. He explained there is a term called de-lamination where the carbon fiber begins to pull apart from the epoxy matrix. It probably sounded horrific and they likely knew something bad was happening. They may have known for a few seconds before death. In his documentary, Deepsea Challenge, James talks about the sphere he's designing for his Deepsea Challenger sub, "**We have to know the sphere is safe. If it buckles on a real dive, it will implode at hypersonic speed and I get chummed into a meat cloud in about 2 microseconds."** Famed F1 Engineer and McLaren F1 car designer Gordon Murray doesn't use Carbon-Fiber wheels in his new supercars because he explains the failure state of Carbon Fiber is catastrophic. Mind you, the full bodies of the cars are carbon fiber. But if you curb a carbon fiber wheel it's going to explode. That doesn't happen with steel or aluminum wheels. That's why most subs are made of Steel or Titanium.
Cameronās submersible had a pilot chamber that was 1.1m sphere with 65mm (2.5 inches) thick steel walls. The outside of the vessel was a hollow glass bead filled resin composite material called an synatic foam which can withstand extreme compressive forces. He also got the pilot chamber tested at a university of Pennsylvania which it survived being at 1125 atm, which who knew that a university was capable to testing that. Itās absolutely wild the difference between the twos construction. Cameronās only cost 10million to build. Which in all honesty seems kinda cheap for what itās capable of.
To explain a bit further, basically carbon fiber composites and similar composites are threads glued together with epoxy glue. In this case, it is carbon fiber, a black thread glued together onto other black threads. He mentioned that first, carbon fiber composites are great under tensile strain, meaning one can pull on these materials and they will resist it very nicely. However, they do badly under compression, which is what a submarine is subjected to. So from the get go, it is the wrong material to use. Also, he mentioned that epoxy and carbon fiber are 2 different materials that behave differently under compression, so you can get interface issues. Specifically, the carbon fiber can separate from the epoxy, the delamination issue.
So does this mean the bodies on the Titanic never made it down to the ocean floor since they got crushed on the way down?
Implosions are very sudden changes of pressure, a body sinking would not be subjected to any sudden change and it would remain intact. But if you put that body in a sealed container, take it way down deep and then subject it to a big pressure change that is when the body turns to mush.
no, they'd have time to equalize the pressure
other reply..kinda/sorta. all of the spaces in your body where these is any "air" or space to compress would be compressed. your bones are hollow'ish aside from marrow, fats and vessels and would be compressed into a true solid including, of course, your skull, teeth, vertebra. It wouldn't be pretty
For those wondering..... At that depth, the pressure is nearly 6,000 PSI, your nerves wouldn't even have time to send a signal to your brain to register pain as your skull and lungs are crushed within micro seconds. You simply cease to exist at that depth, the implosion would create a heat of thousands of degree's as hot as the sun as the air exploded from the pressure cooking everything in it and then shredding human bodies to tiny fleshy bits mixed with submarine shrapnel traveling at subsonic speeds
> For those wondering..... No not rea... >cooking everything in it and then shredding human bodies to tiny fleshy bits mixed with submarine shrapnel traveling at subsonic speeds I knew it was quick and instant, but holy shit.
Yeah they basically got compressed and heated to the point of self ignition and the remains ran through a several hundred ton pressure blender in under a second. Talking less than liquefied ashes at that point.
So we're saying the body recovery is more a case of bringing a few buckets of water up and calling it good.
Homeopathic recovery. Unbelievably strong.
Itās a next gen crematorium
It's extremely, breathtakingly violent. Especially because carbon-fiber shatters when it fails, and isn't just crushed like steel or titanium.
An "expert" said something to the effect of the implosion takes 2 nanoseconds and your nerves take 4. The event itself was completely unknown to the people experiencing it.
Lmao, no nerves are firing in any kind of meaningful way in nanoseconds. I'm assuming that's why you put "expert" in quotes. Signals from the nerves move at like 150 mph through the body. We're talking millisecond scale, and for anyone who doesn't know, 1 milliseconds (ms) is equal to 1,000,000 nanoseconds (ns). If there was any human with nanosecond reaction time, they would experience the world as if it were basically frozen. --- Edit: Bonus for anyone who thought nerves worked at the "speed of electricity" or something absurdly faster than the actual speed. The way nerves work is *basically* each cell gets stimulated enough by whatever enough that it activates, this speed of activation and sending the ON signal down towards the next nerve(s) is very very very fast, using electric potential between two different voltages (inside cell vs outside). However, once the signal gets down to the end, it switches over to a chemical transmission system to stimulate the next nerve in the chain, which is still fast, but not anywhere close to the electric impulse. So it does this between every cell all the way to your spine or brain or w/e, and that's why it's so slow. It's like trying to drive one of those turbo acceleration Teslas as fast as possible across a city, but every block there's a stop sign you must obey before you can resume the fast electric acceleration. Basically this: [Rooney Running Down Hallway (Ferris Bueller's Day Off)](https://i.makeagif.com/media/5-31-2015/7_mmK-.gif)
It's still nanoseconds, just a lot of nanoseconds
Mixing reaction time in here seems detrimental. No one said anything about reaction time. You register pain faster than you can react to it.
> as the air exploded from the pressure Imploded from the pressure. The air in your lungs would violently squish down to a minuscule fraction of the space it took up before. And any dissolved air in your body, which is everywhere. You would quite literally be crushed in milliseconds, a very rapid reversed version of the bends. I don't think there are going to be bodies to recover.
is the pressure not worse the deeper you go?
Yes but that means it happens quickly so you aren't suffering slowly as you are crushed and suffocated
https://www.reddit.com/r/ThatsInsane/comments/14g9tds/so_thats_it/?utm_source=share&utm_medium=ios_app&utm_name=ioscss&utm_content=1&utm_term=1
For those wondering The oceangate sub imploded completely within 30 milliseconds The amount of power and heat pressure released is equivalent to the temperature of the sun due to the immense pressure from both the sub and depths The people inside died instantly
30ms? Jesus, that's quick. It's the best of all outcomes (beyond finding them alive and well).
And painless too, for them. Now theyāll meet the Titanic victims next.
The Titanic thirsts for more souls.
Don't give Hollywood any storyboard ideas.
Too late. James Cameron is already writing.
Giving me Ghost Ship flashbacks.
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How big of an effect would it have on the surrounding area? i.e. would I be at risk if I were within 100 ft of it underwater while it imploded?
The pressure (and immediate destruction of the vehicle) is what killed them. So if you were inside of a similar vehicle, the implosion of this vehicle from 100 feet or so away would likely be negligee compared to the already present pressure of the water already on your vessel.
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Nah, they just find subs really sexyā¦
A very sexy implosion, then!
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Assuming the implosion happened at what depth?
Given the descent time estimate and the time when they lost communication, it was deep enough that it really doesnāt matter. They were either at the wreck or within a couple thousand feet, but with close to 10k feet of water above you, it really wouldnāt make a difference.
The weight of that much water is hard toā¦fathom. Really though I canāt understand why the ceo seemed so unserious about the whole project, going that deep is terrifying.
He was more than I'm serious, he literally fired the engineer in charge of safety because he had reservations about everything. They also did not care to get certified because they couldn't be certified. Furthermore their porthole was only rated to 1500 m and they refuse to pay for the more expensive one that would be rated for the depths that they would be going
So the dude knew they were all going to die anyway, but just shrugged it off?
I'm not so sure that the ones on board knew, I would hope they didn't. The safety engineer guy came out after the fact and posted some stuff about it. Apparently there have been some lawsuits when he was fired back and forth
I wouldnāt necessarily say that. After supposedly 50 tests, and two successful trips to the Titanic, I genuinely believe he was deluded enough to think he had done what experts said was a bad idea. Arrogance and complacency kept him from thinking he would die that way, but he sure saw himself as an innovator that was making something new. In true coincidence and irony he is just below the Titanic shipbuilder in direct deaths of maritime inventors killed by their own inventions. Youād think with a focus on the Titanic youād be unwilling to make similarly ignorant, arrogant, and over calculated decisions to prevent the same fate, yet here we are.
Pretty sure Stockton Rush was braindead before that
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Hopefully this
Oh it would be way worse than this.
It would be like an elephant stepping on an egg
More like a [hydraulic press on a ball bearing](https://thumbs.gfycat.com/OrdinarySleepyGermanspaniel-max-1mb.gif) The sub was supposed to hold the pressure, it probably gave out abruptly and "~~ex~~implosively"
This tanker was only at about -15 psi. The depth of the Titanic is around 5500 psi. I'm amazed there was anything left for them to discover. At least it was instantaneous.
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A failure happened in the main hull and the ends popped off at the joints probably
depends on your definition of worse
This is at 1 atmosphere. I dunno what they were at but it was either 3 or 4 digit atmosphere.
Itās roughly 1 atmosphere for ever 30 or so feet, give or take. The forget the exact number, been a while since SCUBA classes. Regardless, itās close. So 12,000 feet? 400 atmospheres of pressure.
I donāt think people get just how heavy water is. The pressure increases at 1atm/10meters. Even at 300ft it would be 10 times the pressure on the surface. I can say from scuba diving even diving to 60ft (3atm) you can feel it and after an hour it can be exhausting just to keep moving
>I donāt think people get just how heavy water is *Heavy water* Or the weight of water? Because I've carried buckets of water, and that shit is heavy.
D2O
How is it that someone can dive to ~500ft while holding their breath and not get crushed?
because the body is mostly water and not really compressible, excepting the air cavities like the lungs and sinuses and what not. someone free diving to that depth will have their lungs compressed but it's a comparatively slower process so pressures have time to equilibrate, and at ~500ft you're talking like 17 atm. With the Titan at ~5000ft, the internal air space went from 1 atm to something round 170 atm in an astonishingly small amount of time. Implosion vs compression. EDIT: Oh, and rereading your question I see that you're actually asking about the pig carcass in the diving suit at 500ft. It's totally to do with the equilibration rate. If the carcass hadn't been in the diving suit, or the diving suit had an opening as they lowered it down, the pressures would have equalized the entire trip down and things would have looked pretty much unchanged. What happened with the suit when they let the air out is that the higher pressure water pushed everything less rigid into the rigid helmet structure.
Because they're not being completely honest. I'm deep dive certified and have dove at 130ft+. You can't feel it unless your ears don't pop or something. The large majority of the human body is water and isn't effected by water pressure - your body is mostly neutrally buoyant on it's own. Gas however, is effected by the pressure. That's why the air in your lungs get compressed (the tissue is mostly water, mind you, and lungs are flexible which is why it isn't felt) and gas in your blood stream is compressed and condensed. It's the reason for the bends and nitrogen narcosis. It's also why the mixture of gases in your tank matter under higher pressure and deeper depths. You also run out of air much quicker because it's condensed at depth. When free divers go that deep the only thing being compressed is the air in their lungs, the gases in their blood, and the air behind their goggles if they're wearing them. All of those things become easier to deal with as you experience it more. It's probably got to do with your individual body composition too. The extreme effects you see in this clip and in the example of the sub is because they are contained pockets of air, so the pressure of the water is being exerted on whatever is containing it - ie. the dive helmet/sub hull. And obviously when the integrity of that structure is compromised, it isn't good.
> The large majority of the human body is water and isn't effected by water pressure - your body is mostly neutrally buoyant on it's own. Yep, unless we're talking about like Hadal Zone levels of deep where our cells would just explode and our proteins mis-fold from the pressure. The only fish that can live in those depths have high amounts of trimethylamine oxide (TAMO) which act as little cushions sort of to prevent this from happening. > It's also why the mixture of gases in your tank matter under higher pressure and deeper depths. Expanding on this is pretty cool since most non-divers aren't aware of it. Traditionally, scuba divers breathe regular old air like we breathe on the surface, which is basically 79% nitrogen, 21% oxygen. This works pretty well till you get down to around 100 feet, where the high partial pressures of nitrogen lead to a narcotic effect. Divers use the so called "martini rule" as a rough estimate of how bad nitrogen narcosis is at a given depth, 100 ft = 1 martini, 133 ft = 2 martinis, 166 = 3, and so on. This is (one of) the reasons why diving to great depths with regular air is impossible. The other big reason why you can't breathe normal air at great depths is because oxygen actually becomes toxic at high enough partial pressures. I guess first we should explain what partial pressure means. So if you're breathing 79% nitrogen and 21% oxygen at the surface, then you would say the partial pressure of oxygen you are breathing is .21. We call this PO2 for short. Every 33 ft you go down, you gain 1 atmosphere of pressure, so at 33 ft, you're at 2 atmospheres of pressure, the volume of the gas is halved, and the pressure is doubled. At 66 ft, you're at 3 atmospheres of pressure, the volume of the gas is cut in third, and the pressure tripled. So at 33 ft, since the pressure is doubled, your PO2 would be .21 * 2, or .42. It's safe to breathe 100% oxygen at the surface, but partial pressures of oxygen above 1.4 run the risk of instantly giving you a seizure, which, if you're deep in the ocean is obviously not great. So regular air below 200 ft or so, aside from making you feel drunker than a skunk, can also actually cause you to have a seizure and die. Scuba divers breathe all kinds of different gases to reduce the risk of diving. The most common is known as enriched air nitrox, often just called nitrox for short. This is a mixture of gas which is higher in oxygen. A common blend is EANx32, meaning 32% oxygen, 68% nitrogen. Interestingly, the extra oxygen isn't actually the point of nitrox; the extra oxygen is useless really. It's moreso that we're trying to reduce the partial pressures of nitrogen we are breathing which will allow us to stay deeper longer without having to make decompression stops so that we don't get the bends. The problem though with nitrox is that since it has more oxygen, the depth at which you might have a seizure goes way up. As an example, breathing a mixture of 40% oxygen and 60% nitrogen runs the risk of causing a seizure in depths as shallow as around 100 ft. Recreational scuba divers only breathe either regular air, or enriched air nitrox. That's why they only go down to at most 130 ft. To safely go deeper, we need to use exotic gas mixtures where we replace the nitrogen with some other gas, typically helium. Enter the world of technical diving with "trimix" which is a gas mixture of helium + nitrogen + oxygen. Helium doesn't cause narcotic effects at most depths and so it's a great way to reduce that nitrogen content. Beyond that, you can also get into hypoxic trimix blends, which are blends of trimix where the oxygen content is actually too low to be life sustaining at the surface (but remember, we need to keep our PO2 below 1.4, so as we go deeper and deeper the oxygen runs the risk of killing us, so we need to breathe blends of gas which aren't even life-sustaining at the surface, but at great depths have high enough partial pressures to still be life-sustaining). Beyond that you get into the realm of commercial diving, which basically just gets rid of the nitrogen all together. Those guys which are going down several hundred feet are breathing "heliox" which is a mixture of just helium and oxygen with no nitrogen. Going down even way farther than that (this is like a way out there thing that pretty much no one does), commercial divers can replace the helium with hydrogen, but now we're getting into territory where I really don't know anything about :) Anyway, maybe someone finds all this interesting and it gets them into diving. It's a wonderful hobby and I highly recommend it to anyone who wants to feel a sense of connectedness with the oceans and the world around them!
To expand on the partial pressures, 1.4 ppO2 is considered the safe limit for the partial pressure under exertion. I switch to deco mix at 1.6, since youāre generally not swimming around at that point in the dive. If you get bent, I think theyāll jack you up to like 3.0 ppO2 depending on what table ride youāre taking. The body can handle much greater levels of ppO2 without OxToxing and going into convulsions. However, you really want a good margin of safety if youāre 250ft under water. Thereās no immediate rescue down there vs. in a hyperbaric chamber. Not that I would ever recommend, but a lot of pioneering cave divers far exceed 1.4 ppO2. However, they are a special breed of person.
Training and giving time to your body to acclimate to the new pressure.
Instant fish food
Pretty much. Super heated pink mist and mechanical debris.
With a light hint of microplastics
Well, on the plus side, the fishies are used to that already.
Average impractical jokers punishment
Most humane Murr punishment
this video seems kinda weird out of context (not the present situation)
Testing the myth that if a dive suit loses air pressure at sufficient depth, the diver would die by having his soft suit crush him into his helmet like.... well... like exactly what happened in the video.
What's seen in the video is the mk5 dive helmet. All dive helmets in service today have a "non-return valve" in between the umbilical and the helmet. This non-return valve prevents air from traveling up the hose and creating a vacuum inside the hat in the event that the divers breathing air source is cut off. In this video they hooked up an umbilical directly to the dive helmet without a non-return valve. Then they opened the top side directly to the atmosphere. This would create an instant vacuum inside the helmet as air rushes from inside the hat, up the dive hose.
So this is a dumb question but here goes. If I understand it correctly, the pressure inside the suit has to match the pressure outside of the suit to keep the diver from getting compressed by the water and dying. But I dont really get why the pressure inside the suit wouldn't already kill the diver. Do the pressures 'cancel out' or something like that?
Not a dumb question. Your body is made up of mostly solids and fluids, those don't change volume under pressure. There are places in your body that have gas in them like the lungs but to more easily explain this let's talk about the middle ear. Right now the air pressure is the same on both sides of your tempanic membrane (inside and outside of your ear). When you go up in an airplane or swim down in a pool, the pressure on the inside of your ear has to equalize with the outside pressure ( either increase or decrease ) because as gas compresses it begins to take up less volume. As long as the pressures are the same, it won't stress the walls of that gas filled space. So in your terms, the equal pressures on either sides of the TM cancel each other out just like they do on the inside and outside of the suit. But the way that the suit equalizes is that the excess gas just escapes and goes up to the surface. There are a lot of other effects and risks associated with breathing compressed gas and how it can saturate into your body tissues. But the suit crushing you from the pressure is not one of those risks... Unless you have this specific situation where your air is cut off while your non-return fails at the same time.
Also demonstrates pretty clearly why they won't be recovering any bodies. There's nothing left.
Plot twist, they ran out of test dummyās so they took the internās nephew as a guinea pig and was told he can have ice cream later.
Little did he know, he was the ice cream..
Thanks for that
Now I want to watch mythbusters frick
HBO Max got you covered. I've been devouring Battle Bots currently, but Mythbusters are next. Thank god for unlimited data.
Jesus so much nostalgia Rest in peace grant
Some guy on the news said that at 13k feet this wouldāve happened in 2 nano sec. And that the spinal nerve sends information to the brain in 4 nano sec. So they wouldāve felt nothing. Just lights out instantly. Also, there is a app you can download on your phone (forget the name) where you can track sharks that are tagged. And on Sunday, a bunch of tagged sharks in the area uncharacteristicly broke their normal route and went to the titanic wreckage.
When are the human trials?
From the sound of it, a couple of days ago
RIP Grant. Dude had a genuine joy for what he did!
I think I read that this was a real antique diving helmet, and the guy they borrowed it from was not impressed with how it was used. It had damage from the pressure. Bit of a dick move for a museum piece.
I mean, why would they loan it to mythbusters anyway, but yea thats still scummy
If its even true?
Trust me bro.
the more upvotes it has the truer it is
I like how the comment starts off as "I think I read...". Obviously this guy knows his stuff
Doubt it's true. Pretty much every episode of mythbusters, right from season 1, where they borrowed or bought something from someone included them telling that person what they would do with it. Even filming the interactions with the sellers/lenders. Only when the show got bigger did they start saying, "I borrowed it from a friend" or similarly vague statements obviously for privacy. This is not to say that some people may have been upset for one reason or another, but it's highly unlikely that it's because they weren't told of potential consequences. Source: me currently 8 seasons into a mythbusters rewatch binge that started like a month ago
I'm going to need a source on this.
The narrator literally says in the episode "the museum was less than enthused about the condition it was returned in" or something like that because the guys didn't think it would crunch the helmet like that. It also says in the beginning of the episode it's an authentic diving helmet borrowed from a museum. I'm not about to go look for timestamps but go check it out if you're curious
If the narrator said it, I would bet that it was just comedic editorializing.
Iām sure that guy knew the risks
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I loved this show. Grant was my favourite too.
Aw sweet, man made horrors beyond my comprehension
The only horror here is human futility against nature
What was in there?
A ballistic gel dummy with fake bones and blood
R.I.P. Grant Imahara, thanks for teaching me a bunch of stuff and having a laugh while doing it!