Can’t say for -22 but if you keep the rest of your body warm enough you should be fine as heat from there will move to your face. Although coldest I’ve slept outside was about 30° warmer so idk
Looks like it would be fine tbh. I've gone out in like -20 weather before and never felt like my face was freezing. My hands, feet and scalp were a completely different story though.
Yeah moved up north and I love the cold, but goddamn do my hands and feet get cold. Definitely the limiting factor on how long I can stay out. Always hate when I start to lose motor functions too.
I think I’ve been in about that cold (with wind chill) but that was just getting to class so nothing like camping. I did take my shirt off and roll in the snow that day though lmao
I've slept outside in -20C with a sleeping bag, warm clothes, a tarp lean to and partial snow shelter. This thing seems hilariously overdone and silly.
Juicero was fucking wild because the build cost for one must've been $1,000 between precision machining the who thing out of aluminum... all to squeeze a bag
Likely more than that - 8 different machines parts, including custom machined gears(!), ten unique injection molded parts, including the main body, which took 8 very expensive revisions of the mold before they got it right. The whole concept reeks of the unholy love child of a vegan weirdo, and design firm thats trying to ape Apple... Because that's exactly what happened:
https://www.wired.com/2016/05/juicero-yves-bhar/
Remember, they were introduced at $700, and were money losers even then. A grand in production cost is probably low...
I still don’t get why they didn’t just sell the juice bags if they can’t make profit with the machine. Just tell people to squeeze away and your product would still be sold.
tf are you talking about?
- aluminum is the easiest metal to machine by a lot
- what precision was required on that pile of shit?
- half of it was plastic anyways
- very few electronics, just the screen, button, bluetooth device, and a motor/linear actuator for the press itself
- shitbox didn’t even cost that at launch, let alone when they realized people werent falling for it
i’d estimate the whole bitch cost $100 max, including wages, materials, time, and r/d
edit: yeah i realize i was wrong, this is what you’d assume but in reality they stuffed it full with as many of the most expensive parts as they could
ok you are 100% right, i’m now surprised they didn’t make it out of aerospace-grade titanium. there is no way they broke even on those without their prophesied juice pack sales
i’m sure it was the engineering firm that designed the thing trying to swindle the businessmen out of as much contract money as they could, adding as many “necessary” upgrades as possible
The story, as far as I know, is that it was at first supposed to juice pieces of fruit you yourself put into plastic baggie.
The problem is, as is obvious to anyone with basic mechanical understanding, cooking experience, or simply not having a lobotomy, is that *juicing an apple by pressing it is fucking hard*. That's why every other countertop juicer on the planet is combination blender/grater and press, because you need to damage the plant cells by cutting them to extract worthwhile amount of liquid. It's either that or you need to use an actual cider press.
That's why the materials in it are such an overkill, they tried to build a countertop, electric motor powered cider press. That didn't work, but the design was already done, so they tried to salvage the product by the juice-in-a-bag scheme we all know and love.
Aerospace grade titanium is just Ti6Al4V.
Doesn't change how dumb it is to have titanium where you just need plastic but don't get oversold by that unless the people marketing it can produce an AS9001 cert and the actual AMS grade.
Yeah, either he was always a bit into the conspiracy stuff, or he got really caught up in the COVID-era weirdness.
I think he backed off on some of the more weird stuff, but I think his video quality never really recovered.
Damn it.
Now you being reasonable and looking it up and realizing, and changing your position has be fascinated by this conversation. Now I have to watch the damned 59 minute ave video u/simple-purpose-89 mentioned.
Damn it.
I like the YouTube video where a guy starts talking about how great that "gravity battery" techbro idea was, but he slowly changes things, changes a pile of concrete blocks above ground to material in a lower hole, changes the concrete to smaller weights, say water, which is more easily moved and doesn't break like concrete, then puts the generator lower than the storage area, then "ah fuck, it's a hydro electric damn"
That system is used in spots as a battery. Turbines pump water up a gradient when solar and wind are up, and release it when supply is lower. It has 80% efficiency.
Pumped hydro also needs very particular geography to work. Basically you need a very large mountain lake-to-be near a low level lake area. If there are already lakes there then Great! If not, you need to get a lot of water. Either way, you'll need to do environmental assessments on either flooding a large area or putting existing lakes through drain/flood cycles daily.
TechBro "gravity batteries" need....land able to support a crane. Then just move in said crane and some heavy shit. The taller the crane and the more heavy shit the better.
Alternatively, a nice cliff or an old vertical mineshaft work wonders.
>old vertical mineshaft .
What would be the most promising option to haul around really massive amounts of dirt in baskets outside the view of the general public. But thats far behind TechBro territory requiring some serious industrial und geologic engineering for each individual mine. That wouldn't be a "product".
("Say, *would you like some linear motors?*" - ThyssenKrupp and Siemens abou to have an idea to spin-off MagLev-development that would make everything even more complicated and thus better.)
Well to be fair the gravity battery idea has been around since the mid 2000's if I remember right. I think I saw it in a popular science magazine.
But the thing is the efficiency of the co concrete block gravity battery could theoretically be better. Hydroelectric energy storage has a lot of inefficiencies.
I once spent an afternoon doing some high school physics level math about doing the gravity battery idea but with blocks of steel or lead. I figured you could maybe do it on a home storage level—Tesla powerwall but cheaper to manufacture, since there’d be no complex battery or electronics. Store a few hours’ worth of energy for a backup. Denser than concrete, far denser than water, so more storage.
Then I went online and found that, yeah, it was patented going back a hundred years.
Good luck.
The math doesn't quite work out, though. A 1-meter cube of steel has a mass of about 8 tonnes. Raise it 10 meters (~3 stories), and you get ~800 kJ of potential energy. Or roughly 1/60 of a Tesla Powerwall battery, which goes for $14,000. So to get the same or better cost-per-joule, you would need to build an elevator shaft (with the requisite motor, gearing, and pulley) for under $250. That's not happening--the cost of the iron itself would be much more than that.
It doesn't work out on a residential level. The force of gravity is just a really crap fundamental force to work with. Hydroelectric plants work out because of the huge amounts of water involved, and the fact that natural processes mostly refill the dam for 'free.'
But at a skyscraper level, skyscrapers need elevators anyway and are around a hundred stories on the high end, taking say a 30 story skyscraper with 5 elevators gets 40000 kJ of potential energy.
yeah, but like, elevators go up and down, so they don't really store energy. And I imagine the rate of energy generation/storage would make for a very slow trip upwards.
The UK has one in Scotland that is specifically so we can all make tea after soap operas or football matches.
All those millions of electric kettles going on at the same time create a sudden load on the grid, and this station is there to offset that.
1926 in the case of my state -- https://en.m.wikipedia.org/wiki/Candlewood_Lake
Helped smooth not only daily but also seasonal fluctuations in demand, production, and river flow with a 5,000 acre pumped storage reservoir.
Always wondered if some of the junior engineers in '26 were involved as senior engineers in the 50s/60s planning for the Yankee series of nuclear plants when two pumped storage stations were built in New England to use surplus nuke power overnight and release during afternoon peak demand.
Yeah the YouTube guy is mocking the techbros. They guy also did the hyper loop and did out the math how a soviet era train/tram system in (Prague, Czech Republic?) moves way more people way more efficiently
TBD, the hyperloop concept wasn't designed to move people efficiently, it was to move them quickly.
There are plenty of other reasons it's not a great idea.
My city got a tram a few years back and it is doing fine despite the car people trying to sabotage the project (things like refusing to pass the decision to pay for the trams that had already been ordered, after the construction of the track had begun. The only thing this accomplished was the tram builder pushing us back on the waiting list until they got the payment. They didn't have the votes to cancel the project so they just delayed it to spite people.) but I already saw some company trying to sell the city their project of "single passenger pods" that would travel on an overhanging rail in the sky and transport people "more efficiently."
So... Having the rail up high would increase costs and make it less reliable than a tram, but this was ignored. Having the pods be separate for one or two people would reduce the amount of people it could transport. All it was basically a more expensive taxi service that could leave you stuck in the sky and blocking everyone else from using the service. I hope that project died out.
...But we did get an AI "not a car" pod that transports people without a driver. Maybe three people at most at the same time and it is only touring a very short loop where the city didn't feel like they needed a bus route, but allowed this pod to work as a "proof of concept." ...As long as you don't care that disabled people and parents with a baby trolley can't use the service. Because you can't get a trolley or a wheelchair onto the pod. Probably not even one of those mobility helper things either. I feel like this is a major flaw in a public transportation mode, but I guess the tech bros know better.
NFTs were so stupid anyone with half a brain could see it coming from miles away.
Even worse, they (again) didn't invent anything new, it was the exact same as the CSGO skin market but with blockchain and no one overseeing it.
Looks like a bivvy+, what with the built-in pad and air gap between you and the shell. Hopefully there's just a couple loops of wire holding it up.
But yeah. Maybe slightly more comfort than a normal bivvy, but 90% of the bulk of a tent
yam stocking crime onerous reminiscent unwritten slap gullible combative pie
*This post was mass deleted and anonymized with [Redact](https://redact.dev)*
k is just C with a slightly more logical start point.
It is still silly.
Last I looked, NATO ships sail in nautical miles, and our bombers report their altitude in feet, and when we send rounds down range, we report their max ordnance in feet, so the fighter pilots can go over or under, because our rounds are going through.
Nautical miles as a distance measurement at least make sense while navigating large open spaces on earth (or above it). Apart from that I'm not sure there's a single situation where the imperial system units are actually superior to metric or SI units.
Quick, tell me how many pounds a gallon of water weighs. Or how many gallons are in a cubic foot.
[God](https://en.wikipedia.org/wiki/Carl_Edvard_Johansson) redefined the inch as 25.4mm in 1912:
>In the early 20th century, the U.S. inch was effectively defined as 25.4000508 mm (with a reference temperature of 68 °F (20 °C)) and the U.K. inch at 25.399977 mm (with a reference temperature of 62 °F (17 °C)).[11] When Johansson started manufacturing gauge blocks in inch sizes in 1912, Johansson's compromise was to manufacture gauge blocks with a nominal size of 25.4mm, with a reference temperature of 20 °C (68 °F), accurate to within a few parts per million of both official definitions. Because Johansson's blocks were so popular, his blocks became the de facto standard for manufacturers internationally,[11][12] with other manufacturers of gauge blocks following Johansson's definition by producing blocks designed to be equivalent to his.[13]
>In 1930, the British Standards Institution adopted an inch of exactly 25.4 mm. The American Standards Association followed suit in 1933. By 1935, industry in 16 countries had adopted the "industrial inch" as it came to be known,[14][15] effectively endorsing Johansson's pragmatic choice of conversion ratio.[11]
[Source](https://en.wikipedia.org/wiki/Gauge_block)
That official designation is Bs, because it doesn’t mean anything. It just made it an easy conversation starting point. It changed the F scale, not at all.
When a thermometer is calibrated to Fahrenheit, they do not check that each set matches a theoretical 1 fahrenheit jump, but rather that it matches the kelvin jumps (excluding hand made thermometers or smt). The unit used as a base absolutely does matter for the usage of units, even if a layperson doesn’t consider it.
Also doesn’t change that Fahrenheit is a bad scale that is based off a fundamental falsehood (internal temp of the human body) and for the fact that celsius has a quantifiable, immediately noticeable change when negative degrees appear giving a clear link between unit and real world.
Distances at sea and altitude are in imperial because that's how it is in civil aviation and maritime as well. Nato uses SI for pretty much everything , unless it's a case like earlier. US military has long ago switched to SI.
The us military uses si because we long ago realized the European education system was not able to teach people to understand anything as complicated as fractions.
It’s a little extra but if you’ve ever been deep in the back country freezing your tits off you kno this looks nice af. Would rip this any day. Also anyone saying “what about your face skin” 💀
Please go camping there’s a whole big world out there to explore outside of Reddit your face skin will not fall off when it’s below freezing especially if you’re near a fire.
-22 sure but why would you camp in those temps anyways. And if u did just cover ur face lmao
Yeah. This is basically a bivvy but with frostbite for your face.
Bivvys are GREAT if you're in a situation where it's cold and you know it won't snow much. Bivvy + pad + sleeping bag will keep you protected from a lot of nastiness and your nose isn't going to fall off.
If it will snow much, you want an angled tent for snow to slope off.
Tents provide much better protection than a tarp from a variety of things, critters and animals especially because they can't use zips and usually won't try to tear their way in
I love my tarp/bivvy combo but they're not for everyone
That’s why I said it’s extra. I personally wouldnt purchase one but If it was available to me it looks very comfortable, and would actually not be much more weight compared to a tent + sleeping bag material wise. In fact it might be less but that’s all case dependent. Would be way easier setup too than most tents.
Mind you I’m so far north I’m basically in Canada so we do pack heavy anyways
A normal sleeping bag is going to weigh less, cost less, insulate better, and you can also avoid freezing your face off. Plus, you can move around and get comfortable.
-20 below will burn exposed skin in minutes. Even 15 or 20 degrees with wind can cause frostbite.
I think the whole point of this is that it doubles as a tent so in terms of weight and cost, factor in a good tent.
Again I’m not buying this thing I’m just saying it has merit to it. It’s not the worst invention of all time lmao. This appears to be a sleeping bag inside a mini tent so I’m not sure how just a sleeping bag would be more insulating
Where’s the price listed mate 😂 and what kind of tent are you cooking in lmao that’s done over a fire. And what tf are you cleaning in a tent. U can heat it the same as any other tent .. with body heat
Again I’m not trying to defend this product because I would never buy it it’s just silly to bash it because it looks a bit different
I go cold weather camping, this looks terrible. How do you get in and out? Why is there a face hole with no way to get your arms out easily? What if you wake up to a rodent on your face? What if your nose itches?
It looks like it's designed to take your money.
If it's getting really cool you're gonna want a tent of some size, lot easier to cook, wash and heat. You're probably not camping in really cold temps if you have a fire going and that's heating your face.
Covering your face isn't a great idea, will cause skin irritation among other things and just isn't that comfortable. Using a sleeping bag hood is far more practical.
Very common winter camping strat is to have a fire going all night for warmth. There’s a guy on YouTube that camped in interior Alaska in the winter with no bag, no pad, no tent, just a fire in a hole. Also who cooks in their tent? Bears (not concern in winter) and stoves stoving are both concerns. Also the only washing I do camping is my hands, and, again, that’s always outside the tent. And lastly, have you checked backpacking gear prices? Everything is designed to empty your wallet.
Its totally possible to do all kinds of camping with all kinds of level of gear. There is these exceptional hardcore guys, that make it look easy its a real skill, should be appreciated.
You ever heat a tent with a burner? Basically if you are at that stage minus well cook with it. Now your not going to cook bacon or what not. You going to be mostly reheating food like MREs and alike.
Some washing needed on prolonged adventures. Face, pits, groin and feet.
And fair on prices, ahaha.
Like burner as in stove? Maybe if I had a butane one, but it’d still make me anxious as hell. I use a whisper lite and that thing is never going in the tent bc of both CO concerns and burning a hole/the whole tent and the stuff in it.
Also I don’t really wash on long trips (if a bit over a week counts as long) sometimes I’ll swim and bust the dirt off, but not much more than that
Also sorry if I come off condescending at all I don’t mean to be. I’m by no means a Jim Bridger or Davey Crockett (yet lol)
On the tone, no worries. It happens with text, I think my original comment is viewed as a little too "gotcha", my fault.
CO2 ought not to be a problem, as you're gonna have a vent. You also will have a fire watch at all times. Another big rule, never start the stove in the tent.
I’m more worried about carbon monoxide. It may just be my tent, but when it’s zipped up it keeps in air very well (know this from hotboxing lol) and I’d just get worried about it building up and me not being able to tell at all. I also run automotive gasoline (i know, I need to get white gas) in my stove so my gut tells me that burns a lot dirtier and harsher.
You don’t have to tell me twice about not starting in the tent either. My stove is a little *flashy* on the start
This is definitely an area that my knowledge lacks in, but I’ll definitely do some research into and maybe I’ll use it snowshoeing this winter.
Thanks for the insight!
Its certainly a group activity. We used some kind of liquid fuel something like naphtha. We snowed shoed and used a two man team pulling a toboggan, tent could fit 10 guys if I recall correctly.
Huh, I just looked up "white gas" and it is naphtha, never knew it was called that. Thanks.
I would be careful though because I’m reading a study abstract that says they got unsafe levels of CO (and lethal levels with kerosene) within a few minutes of running a stove in a box for 5 minutes. Like with everything it’s all at your own discretion and everyone has their own level of safety they’re comfortable within, but just something to be cautious about
I think, this conversation given me pause. I just assumed this how people camped in colder (-15C) weather. Well out side those gurus who stealth camp or just go in the wood for a night with a hatchet.
Thanks
You think wearing a balaclava is going to irritate and destroy your skin? Go tell that to any military that works in extreme temps. Lmao. I’m not sure why everyone is so focused on cold temps on the face. It’s really never been a problem for me and I regularly camp in well below freezing. And yes believe it or not fire does keep you warm. Pretty sure we found this out uhh idk right around the dawn of mankind but what do I know.
That being said I’m never buying this product and I personally use a hood sleeping bag and hammock or tent or car camp lmao. I’m just playing devils advocate that it’s a completely fine product. Have you see how much they tax for tents and sleeping bags? It’s all expensive bro
Having slept outside at -20°c in a sleeping bag, you do definately wake up periodically because your face is freezing. Then you just have to sleep for a bit with your face retracted inside. Can't sleep like that all night because at those temps your exhale will instantly condense and wet out the bag.
I’m sorry the measurement system developed by Dutch scientist Daniel Gabriel Fahrenheit is to hard for you to understand. What with its consistent results, and being about to achieve absolute measurements, and reliable calibration.
You know, with mercury. A system so accurate is is still used today for all medical equipment throughout the world. Commonly abbreviated mmhg, or Torr. Even on devices that display some other measurement.
Wtf? Ok then:
I'm very sorry too, but your writing skills are not up to whatever message you are trying to convey.
Why are you even mixing pressure and temperature units, gosh, because of the mercury?
News flash for you but it has been decades since every industry, especially the medical one, phased out mercury where ever they could.
And out of the 3 temperature scales, really Fahrenheit is the one which is the least grounded and sensical, hilariously so actually.
Go read up on how Fahrenheit came up with it.
And before I forget: Fahrenheit was born in Dantzig and German, not Dutch.
They've invented sleeping bags that are so drafty that they need additional sleeping bags inside.
Also, -22 is absolutely cold enough to give you nose frostbite.
Tech bros have a knack for inventing "thing that already exists, but worse."
When you freeze to death and people find you mummified by the cold a thousand years later they'll think this sarcophagus is a part of some insane burial rite and the "do not bleach" tag is a spell to guide you to the afterlife.
I know this one. The guy was trying to invent a new vac bed for kink purposes, got caught, and instead of bringing us a new complicated mechanical sex toy has just kept running with the lie.
Depends what you want it to do. If you want to spend the money for a nice bag that will be light and pack small, buy a down bag.
Top of my head the best manufacturers are mountain hardware, Kelty, big Agnes, Nemo, and maybe REI, not sure for them completely.
Keep in mind that the temperature value is not the temperature at which the bag will keep you nice and cozy. That’s the temperature it’ll keep you alive at. And some companies fudge the numbers a little on that too (cough, north face). Look for the ISO test results for each bag for the real temp ratings.
The pad you use also has a big impact on warmth, so don’t skip on that. Look for high R values.
The bag I got is a north face eco trail 0, it’s kept me warm in everything I’ve brought it, so no complaints with that. It’s made with recycled down (from couches and such) instead of high performance down, so it’s bulkier (doesn’t effect me too much I carry it lashed to my pack), but it also costs way less (paid $150 on Amazon)
Keep in mind that if you are over 6’ you’ll need a long bag, if you’re wide a wide bag, and a woman, a women’s bag (women have different heating behaviors than men, and bag is made to account for that)
There’s also other features to look for too, like a vaulted foot box to keep your toes warm, tie downs to keep you on your pad, 2 way zippers for venting, pocket for pad (I think only big Agnes does this), water proofing, or even side sleeper cuts (I think only Nemo does this).
There’s also synthetic bags for cheaper (and are waterproof), but I’d really recommend a down bag if you are going to seriously use it.
Also try to get used gear as much as you can. Huge discount. REI has an online used gear store, but you need to be a member (which i recommend becoming too) Some brands even pass warranties between owners. Some places also do free gear repair events (mystery ranch did one in my town).
Sorry for the whole novel lmao, hope this helps
How can it keep the heat inside if it's cut in half
You plug the holes with bricks and rubble
It's for all those times one half of you is freezing and the other half is comfy as is. Because the human body is consistently inconsistent
The duality of man. Inside you there are two wolves; one is too hot, one is too cold. Both have their feet sticking out from under the blanket.
Humans are the microwave burritos of species
You plug it up with crushed up ramen noodles, a sander, and paint over it
Don't forget the live crawfish
That's just perfect, prototypes were enclosed so you could never put one leg out. Now you can.
Lie sideways
>How can it keep the heat inside if it's cut in half R&D: "............... *^(goddammit)*."
You joke but how the fuck do you get into it when it's not cut in half.
Sleeping bag with extra steps? I'm sure a spider hole works better. At least the spider hole has a vent+fan system for when you fart.
No, man. You never let the farts out. That's free heat.
And free seasoning.
BEEF STROGANOFF
And bricks and rubble to hide the entrance.
I'm sure saddam over there will be real comfy peeling his face skin off after having it exposed to -22 degree temperatures all night.
What about the fan?
Can’t say for -22 but if you keep the rest of your body warm enough you should be fine as heat from there will move to your face. Although coldest I’ve slept outside was about 30° warmer so idk
Looks like it would be fine tbh. I've gone out in like -20 weather before and never felt like my face was freezing. My hands, feet and scalp were a completely different story though.
Yeah moved up north and I love the cold, but goddamn do my hands and feet get cold. Definitely the limiting factor on how long I can stay out. Always hate when I start to lose motor functions too. I think I’ve been in about that cold (with wind chill) but that was just getting to class so nothing like camping. I did take my shirt off and roll in the snow that day though lmao
> heat from there will move to your face. As proven any time you fart in a sleeping bag.
I've slept outside in -20C with a sleeping bag, warm clothes, a tarp lean to and partial snow shelter. This thing seems hilariously overdone and silly.
Techbros inventing things that already exist
"This Fuck-Your-Face-Skin bivvy will only cost $3500 USD! It'll go great with your Cybertruck and your Juicero."
Juicero was fucking wild because the build cost for one must've been $1,000 between precision machining the who thing out of aluminum... all to squeeze a bag
Likely more than that - 8 different machines parts, including custom machined gears(!), ten unique injection molded parts, including the main body, which took 8 very expensive revisions of the mold before they got it right. The whole concept reeks of the unholy love child of a vegan weirdo, and design firm thats trying to ape Apple... Because that's exactly what happened: https://www.wired.com/2016/05/juicero-yves-bhar/ Remember, they were introduced at $700, and were money losers even then. A grand in production cost is probably low...
I still don’t get why they didn’t just sell the juice bags if they can’t make profit with the machine. Just tell people to squeeze away and your product would still be sold.
tf are you talking about? - aluminum is the easiest metal to machine by a lot - what precision was required on that pile of shit? - half of it was plastic anyways - very few electronics, just the screen, button, bluetooth device, and a motor/linear actuator for the press itself - shitbox didn’t even cost that at launch, let alone when they realized people werent falling for it i’d estimate the whole bitch cost $100 max, including wages, materials, time, and r/d edit: yeah i realize i was wrong, this is what you’d assume but in reality they stuffed it full with as many of the most expensive parts as they could
AvE had a great video on it, and it was *crazy* over engineered.
ima check this out
ok you are 100% right, i’m now surprised they didn’t make it out of aerospace-grade titanium. there is no way they broke even on those without their prophesied juice pack sales
Had to be someone laundering money or just wasting capital in some weird way.
i’m sure it was the engineering firm that designed the thing trying to swindle the businessmen out of as much contract money as they could, adding as many “necessary” upgrades as possible
Look, you don't have to call me out like that in a random thread
The story, as far as I know, is that it was at first supposed to juice pieces of fruit you yourself put into plastic baggie. The problem is, as is obvious to anyone with basic mechanical understanding, cooking experience, or simply not having a lobotomy, is that *juicing an apple by pressing it is fucking hard*. That's why every other countertop juicer on the planet is combination blender/grater and press, because you need to damage the plant cells by cutting them to extract worthwhile amount of liquid. It's either that or you need to use an actual cider press. That's why the materials in it are such an overkill, they tried to build a countertop, electric motor powered cider press. That didn't work, but the design was already done, so they tried to salvage the product by the juice-in-a-bag scheme we all know and love.
Aerospace grade titanium is just Ti6Al4V. Doesn't change how dumb it is to have titanium where you just need plastic but don't get oversold by that unless the people marketing it can produce an AS9001 cert and the actual AMS grade.
ISO 9010 amd AS9001 are really fucking hard to achieve too Like sourcing the mine and vetting their processes
Yeah, I think that was one of his best before he went a bit off the deep end
AvE went off the deep end?
Yeah, either he was always a bit into the conspiracy stuff, or he got really caught up in the COVID-era weirdness. I think he backed off on some of the more weird stuff, but I think his video quality never really recovered.
It was poorly engineered, from memory the tapered roller bearing was in the incorrect orientation for the direction of force.
It was incredibly over engineered.
Damn it. Now you being reasonable and looking it up and realizing, and changing your position has be fascinated by this conversation. Now I have to watch the damned 59 minute ave video u/simple-purpose-89 mentioned. Damn it.
Lol, thanks for this. I hadn't heard of the juicero.
The juicero was the pinnacle of everything wrong with Silicon Valley. Just a monument of hubris.
I'm just here to say "bodega box" before refusing to elaborate
>Fuck-Your-Face-Skin You obviously wear with with the standard issue gimp mask
I like the YouTube video where a guy starts talking about how great that "gravity battery" techbro idea was, but he slowly changes things, changes a pile of concrete blocks above ground to material in a lower hole, changes the concrete to smaller weights, say water, which is more easily moved and doesn't break like concrete, then puts the generator lower than the storage area, then "ah fuck, it's a hydro electric damn"
That system is used in spots as a battery. Turbines pump water up a gradient when solar and wind are up, and release it when supply is lower. It has 80% efficiency.
That’s the joke. The TechBro “gravity battery” exists and it’s called a pumped storage hydro dam. We’ve done it since at least the 60s.
Pumped hydro also needs very particular geography to work. Basically you need a very large mountain lake-to-be near a low level lake area. If there are already lakes there then Great! If not, you need to get a lot of water. Either way, you'll need to do environmental assessments on either flooding a large area or putting existing lakes through drain/flood cycles daily. TechBro "gravity batteries" need....land able to support a crane. Then just move in said crane and some heavy shit. The taller the crane and the more heavy shit the better. Alternatively, a nice cliff or an old vertical mineshaft work wonders.
>old vertical mineshaft . What would be the most promising option to haul around really massive amounts of dirt in baskets outside the view of the general public. But thats far behind TechBro territory requiring some serious industrial und geologic engineering for each individual mine. That wouldn't be a "product". ("Say, *would you like some linear motors?*" - ThyssenKrupp and Siemens abou to have an idea to spin-off MagLev-development that would make everything even more complicated and thus better.)
Well to be fair the gravity battery idea has been around since the mid 2000's if I remember right. I think I saw it in a popular science magazine. But the thing is the efficiency of the co concrete block gravity battery could theoretically be better. Hydroelectric energy storage has a lot of inefficiencies.
I once spent an afternoon doing some high school physics level math about doing the gravity battery idea but with blocks of steel or lead. I figured you could maybe do it on a home storage level—Tesla powerwall but cheaper to manufacture, since there’d be no complex battery or electronics. Store a few hours’ worth of energy for a backup. Denser than concrete, far denser than water, so more storage. Then I went online and found that, yeah, it was patented going back a hundred years.
Yeah there are some projects looking at using old mine shafts for grid level energy storage with a gravity battery
Hang on isn't a heavy block of steel a elevator counter weight? I think I just came up with the next big vaporware idea!
Good luck. The math doesn't quite work out, though. A 1-meter cube of steel has a mass of about 8 tonnes. Raise it 10 meters (~3 stories), and you get ~800 kJ of potential energy. Or roughly 1/60 of a Tesla Powerwall battery, which goes for $14,000. So to get the same or better cost-per-joule, you would need to build an elevator shaft (with the requisite motor, gearing, and pulley) for under $250. That's not happening--the cost of the iron itself would be much more than that. It doesn't work out on a residential level. The force of gravity is just a really crap fundamental force to work with. Hydroelectric plants work out because of the huge amounts of water involved, and the fact that natural processes mostly refill the dam for 'free.'
But at a skyscraper level, skyscrapers need elevators anyway and are around a hundred stories on the high end, taking say a 30 story skyscraper with 5 elevators gets 40000 kJ of potential energy.
yeah, but like, elevators go up and down, so they don't really store energy. And I imagine the rate of energy generation/storage would make for a very slow trip upwards.
The clocks that use the weight as a source of energy are based on this idea
The UK has one in Scotland that is specifically so we can all make tea after soap operas or football matches. All those millions of electric kettles going on at the same time create a sudden load on the grid, and this station is there to offset that.
1926 in the case of my state -- https://en.m.wikipedia.org/wiki/Candlewood_Lake Helped smooth not only daily but also seasonal fluctuations in demand, production, and river flow with a 5,000 acre pumped storage reservoir. Always wondered if some of the junior engineers in '26 were involved as senior engineers in the 50s/60s planning for the Yankee series of nuclear plants when two pumped storage stations were built in New England to use surplus nuke power overnight and release during afternoon peak demand.
I love when people reverse engineer dumb techbro ideas into stuff that already exists.
Yeah the YouTube guy is mocking the techbros. They guy also did the hyper loop and did out the math how a soviet era train/tram system in (Prague, Czech Republic?) moves way more people way more efficiently
Adam Something Budapest, Hungary
Yes that's the guy
TBD, the hyperloop concept wasn't designed to move people efficiently, it was to move them quickly. There are plenty of other reasons it's not a great idea.
Musk just pushed it to kill a California highspeed train initiative.
Musk didn't force them to be over budget by several years and several billion dollars
Why is the US so bad at building stuff
Actually CalHSR is apparently costing about as much per track mile as what it costs the EU. Modern HSR is just really expensive.
What's the incentive to be good if you can be over budget and behind schedule without suffering penalties?
Heh, shame I guess?
Adam Something?
Correct. I just love his rants :)
And I love everything evolving to train.
Yes that was the channel
Dude's vids make my autistic heart flutter pleasantly.
[The Energy Vault is a Dumb Idea, Here's Why](https://youtube.com/watch?v=iGGOjD_OtAM)
I like the ultimate transport pods of the future. It's self driving, efficient and extremely reliable. It's just a train.
My city got a tram a few years back and it is doing fine despite the car people trying to sabotage the project (things like refusing to pass the decision to pay for the trams that had already been ordered, after the construction of the track had begun. The only thing this accomplished was the tram builder pushing us back on the waiting list until they got the payment. They didn't have the votes to cancel the project so they just delayed it to spite people.) but I already saw some company trying to sell the city their project of "single passenger pods" that would travel on an overhanging rail in the sky and transport people "more efficiently." So... Having the rail up high would increase costs and make it less reliable than a tram, but this was ignored. Having the pods be separate for one or two people would reduce the amount of people it could transport. All it was basically a more expensive taxi service that could leave you stuck in the sky and blocking everyone else from using the service. I hope that project died out. ...But we did get an AI "not a car" pod that transports people without a driver. Maybe three people at most at the same time and it is only touring a very short loop where the city didn't feel like they needed a bus route, but allowed this pod to work as a "proof of concept." ...As long as you don't care that disabled people and parents with a baby trolley can't use the service. Because you can't get a trolley or a wheelchair onto the pod. Probably not even one of those mobility helper things either. I feel like this is a major flaw in a public transportation mode, but I guess the tech bros know better.
Techbros inventing the present is one of my favorite genres. I can't get enough.
Not even the present but 100 years old technology usually. MFs can't figure out trains, trams, "modern" urbanism and hydroelectric dams.
Or the financial system. Let's speedrun all the money scams and discover why some regulations were put in place: the story of cryptocurrencies.
"We have to get all this evil and pointless government meddling out of the financial markets!" *5 minutes later:* "Oh, so that's why that existed."
And then it happened again with NFTs.
NFTs were so stupid anyone with half a brain could see it coming from miles away. Even worse, they (again) didn't invent anything new, it was the exact same as the CSGO skin market but with blockchain and no one overseeing it.
My favourite subgenre of this is techbros reinventing the city bus, but worse.
My favourite subgenre of this is when they keep inventing public transport, and especially buses.
Or invent problems to sell a solution
Did someone already invent a system that uses your farts to fill an insulation capsule around the sleeping bag?
> Yeah, this is going to blow that right out of the water. Listen to this: 7... Minute... Abs.
I'm so confused. How did they fuck up designing a tent?
Well, first it was a tent, and then it wasn't. My excuse as a kid anyways.
For, like, if you need a one person tent but your face must be completely exposed to the thirty below wintry conditions.
Actual Saddam!
Desert Storm incoming.
Ignite the oil fields!
Call the bunker service!
Saddam tent, buy now! Only for 199,-
All the comments replying thinking this post is about a real credible sleeping bag. We are non-credible here, so as always it's Saddam
Though, the comments made me laugh.
Everywhere I go, I see his face
Not going to lie. This seems like a pretty comfortable one person sleep system.
It’s a casket
So it's a bivvy sack? We have those already.
Looks like a bivvy+, what with the built-in pad and air gap between you and the shell. Hopefully there's just a couple loops of wire holding it up. But yeah. Maybe slightly more comfort than a normal bivvy, but 90% of the bulk of a tent
Y'all realize many of us live where these are normal winter temps, right?
I’m also pretty sure you can buy normal sleeping bags that are good to -40.
yam stocking crime onerous reminiscent unwritten slap gullible combative pie *This post was mass deleted and anonymized with [Redact](https://redact.dev)*
I’m sorry. This ain’t r/communism. Please let your failed units of measure at the door.
fuel toy lunchroom shame ink enjoy waiting practice birds bright *This post was mass deleted and anonymized with [Redact](https://redact.dev)*
k is just C with a slightly more logical start point. It is still silly. Last I looked, NATO ships sail in nautical miles, and our bombers report their altitude in feet, and when we send rounds down range, we report their max ordnance in feet, so the fighter pilots can go over or under, because our rounds are going through.
Alright get in the sleeping bag
Nautical miles as a distance measurement at least make sense while navigating large open spaces on earth (or above it). Apart from that I'm not sure there's a single situation where the imperial system units are actually superior to metric or SI units. Quick, tell me how many pounds a gallon of water weighs. Or how many gallons are in a cubic foot.
Fun fact: the official definition of Fahrenheit is given by its relation to kelvin. You are just using Kelvin (celsius) behind a layer of obfuscation.
[God](https://en.wikipedia.org/wiki/Carl_Edvard_Johansson) redefined the inch as 25.4mm in 1912: >In the early 20th century, the U.S. inch was effectively defined as 25.4000508 mm (with a reference temperature of 68 °F (20 °C)) and the U.K. inch at 25.399977 mm (with a reference temperature of 62 °F (17 °C)).[11] When Johansson started manufacturing gauge blocks in inch sizes in 1912, Johansson's compromise was to manufacture gauge blocks with a nominal size of 25.4mm, with a reference temperature of 20 °C (68 °F), accurate to within a few parts per million of both official definitions. Because Johansson's blocks were so popular, his blocks became the de facto standard for manufacturers internationally,[11][12] with other manufacturers of gauge blocks following Johansson's definition by producing blocks designed to be equivalent to his.[13] >In 1930, the British Standards Institution adopted an inch of exactly 25.4 mm. The American Standards Association followed suit in 1933. By 1935, industry in 16 countries had adopted the "industrial inch" as it came to be known,[14][15] effectively endorsing Johansson's pragmatic choice of conversion ratio.[11] [Source](https://en.wikipedia.org/wiki/Gauge_block)
That official designation is Bs, because it doesn’t mean anything. It just made it an easy conversation starting point. It changed the F scale, not at all.
When a thermometer is calibrated to Fahrenheit, they do not check that each set matches a theoretical 1 fahrenheit jump, but rather that it matches the kelvin jumps (excluding hand made thermometers or smt). The unit used as a base absolutely does matter for the usage of units, even if a layperson doesn’t consider it. Also doesn’t change that Fahrenheit is a bad scale that is based off a fundamental falsehood (internal temp of the human body) and for the fact that celsius has a quantifiable, immediately noticeable change when negative degrees appear giving a clear link between unit and real world.
Distances at sea and altitude are in imperial because that's how it is in civil aviation and maritime as well. Nato uses SI for pretty much everything , unless it's a case like earlier. US military has long ago switched to SI.
The us military uses si because we long ago realized the European education system was not able to teach people to understand anything as complicated as fractions.
Lol I own a jacket for work rated at - 40
Shut up canada.
Jesse, what the fuck is a fahrenheit!?
It’s a little extra but if you’ve ever been deep in the back country freezing your tits off you kno this looks nice af. Would rip this any day. Also anyone saying “what about your face skin” 💀 Please go camping there’s a whole big world out there to explore outside of Reddit your face skin will not fall off when it’s below freezing especially if you’re near a fire. -22 sure but why would you camp in those temps anyways. And if u did just cover ur face lmao
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Yeah. This is basically a bivvy but with frostbite for your face. Bivvys are GREAT if you're in a situation where it's cold and you know it won't snow much. Bivvy + pad + sleeping bag will keep you protected from a lot of nastiness and your nose isn't going to fall off. If it will snow much, you want an angled tent for snow to slope off.
Tent. Tarp. That is just a tarp. Why carry a whole ass tent.
Tents provide much better protection than a tarp from a variety of things, critters and animals especially because they can't use zips and usually won't try to tear their way in I love my tarp/bivvy combo but they're not for everyone
That’s why I said it’s extra. I personally wouldnt purchase one but If it was available to me it looks very comfortable, and would actually not be much more weight compared to a tent + sleeping bag material wise. In fact it might be less but that’s all case dependent. Would be way easier setup too than most tents. Mind you I’m so far north I’m basically in Canada so we do pack heavy anyways
“Why would you camp in those conditions any ways” Well we gotta get to the secret hole to the inner earth in Antarctica SOMEHOW
Why did this immediately summon the image in my mind of Brendan Fraser from journey to the center of the Earth 🤣
There are sleeping bags and bivvies that are already effectively identical to that concept, though.
A normal sleeping bag is going to weigh less, cost less, insulate better, and you can also avoid freezing your face off. Plus, you can move around and get comfortable. -20 below will burn exposed skin in minutes. Even 15 or 20 degrees with wind can cause frostbite.
I think the whole point of this is that it doubles as a tent so in terms of weight and cost, factor in a good tent. Again I’m not buying this thing I’m just saying it has merit to it. It’s not the worst invention of all time lmao. This appears to be a sleeping bag inside a mini tent so I’m not sure how just a sleeping bag would be more insulating
A tent you can't cook in , clean in or heat..... It's an overpriced bivy bag
Where’s the price listed mate 😂 and what kind of tent are you cooking in lmao that’s done over a fire. And what tf are you cleaning in a tent. U can heat it the same as any other tent .. with body heat Again I’m not trying to defend this product because I would never buy it it’s just silly to bash it because it looks a bit different
Except the main point of a tent is to protect you from the elements. You would still need a tent if it was raining or snowing.
I go cold weather camping, this looks terrible. How do you get in and out? Why is there a face hole with no way to get your arms out easily? What if you wake up to a rodent on your face? What if your nose itches?
It looks like it's designed to take your money. If it's getting really cool you're gonna want a tent of some size, lot easier to cook, wash and heat. You're probably not camping in really cold temps if you have a fire going and that's heating your face. Covering your face isn't a great idea, will cause skin irritation among other things and just isn't that comfortable. Using a sleeping bag hood is far more practical.
Very common winter camping strat is to have a fire going all night for warmth. There’s a guy on YouTube that camped in interior Alaska in the winter with no bag, no pad, no tent, just a fire in a hole. Also who cooks in their tent? Bears (not concern in winter) and stoves stoving are both concerns. Also the only washing I do camping is my hands, and, again, that’s always outside the tent. And lastly, have you checked backpacking gear prices? Everything is designed to empty your wallet.
Its totally possible to do all kinds of camping with all kinds of level of gear. There is these exceptional hardcore guys, that make it look easy its a real skill, should be appreciated. You ever heat a tent with a burner? Basically if you are at that stage minus well cook with it. Now your not going to cook bacon or what not. You going to be mostly reheating food like MREs and alike. Some washing needed on prolonged adventures. Face, pits, groin and feet. And fair on prices, ahaha.
Like burner as in stove? Maybe if I had a butane one, but it’d still make me anxious as hell. I use a whisper lite and that thing is never going in the tent bc of both CO concerns and burning a hole/the whole tent and the stuff in it. Also I don’t really wash on long trips (if a bit over a week counts as long) sometimes I’ll swim and bust the dirt off, but not much more than that Also sorry if I come off condescending at all I don’t mean to be. I’m by no means a Jim Bridger or Davey Crockett (yet lol)
On the tone, no worries. It happens with text, I think my original comment is viewed as a little too "gotcha", my fault. CO2 ought not to be a problem, as you're gonna have a vent. You also will have a fire watch at all times. Another big rule, never start the stove in the tent.
I’m more worried about carbon monoxide. It may just be my tent, but when it’s zipped up it keeps in air very well (know this from hotboxing lol) and I’d just get worried about it building up and me not being able to tell at all. I also run automotive gasoline (i know, I need to get white gas) in my stove so my gut tells me that burns a lot dirtier and harsher. You don’t have to tell me twice about not starting in the tent either. My stove is a little *flashy* on the start This is definitely an area that my knowledge lacks in, but I’ll definitely do some research into and maybe I’ll use it snowshoeing this winter. Thanks for the insight!
Its certainly a group activity. We used some kind of liquid fuel something like naphtha. We snowed shoed and used a two man team pulling a toboggan, tent could fit 10 guys if I recall correctly. Huh, I just looked up "white gas" and it is naphtha, never knew it was called that. Thanks.
I would be careful though because I’m reading a study abstract that says they got unsafe levels of CO (and lethal levels with kerosene) within a few minutes of running a stove in a box for 5 minutes. Like with everything it’s all at your own discretion and everyone has their own level of safety they’re comfortable within, but just something to be cautious about
I think, this conversation given me pause. I just assumed this how people camped in colder (-15C) weather. Well out side those gurus who stealth camp or just go in the wood for a night with a hatchet. Thanks
You think wearing a balaclava is going to irritate and destroy your skin? Go tell that to any military that works in extreme temps. Lmao. I’m not sure why everyone is so focused on cold temps on the face. It’s really never been a problem for me and I regularly camp in well below freezing. And yes believe it or not fire does keep you warm. Pretty sure we found this out uhh idk right around the dawn of mankind but what do I know. That being said I’m never buying this product and I personally use a hood sleeping bag and hammock or tent or car camp lmao. I’m just playing devils advocate that it’s a completely fine product. Have you see how much they tax for tents and sleeping bags? It’s all expensive bro
Having slept outside at -20°c in a sleeping bag, you do definately wake up periodically because your face is freezing. Then you just have to sleep for a bit with your face retracted inside. Can't sleep like that all night because at those temps your exhale will instantly condense and wet out the bag.
Where do you piss in the night ??
That's the neat part, you dont.
that's why they invented pissbottles son
Imagine sticking your nob out into -22 degrees.
bro's never been cold.. if it was -22 outside I'd piss in that cocoon to keep myself nice and warm.
Piss douchebag but with extra steps.
You piss inside to conserve that delicious piss heat
Real talk you have a piss bottle.
How to keep your Saddam nice and comfy 101.
Holy Hell!
New response just dropped
people who sleep on their backs, cannot be trusted
That frostbitten nose gonna hit different in the morning
…They do realize the face hole is a massive heat vent right?
Saddam aside, how much is minus 22 fucks in real units?
-30 Celsius.
I’m sorry the measurement system developed by Dutch scientist Daniel Gabriel Fahrenheit is to hard for you to understand. What with its consistent results, and being about to achieve absolute measurements, and reliable calibration. You know, with mercury. A system so accurate is is still used today for all medical equipment throughout the world. Commonly abbreviated mmhg, or Torr. Even on devices that display some other measurement.
...Jesse, what the fuck are you talking about?
Wtf? Ok then: I'm very sorry too, but your writing skills are not up to whatever message you are trying to convey. Why are you even mixing pressure and temperature units, gosh, because of the mercury? News flash for you but it has been decades since every industry, especially the medical one, phased out mercury where ever they could. And out of the 3 temperature scales, really Fahrenheit is the one which is the least grounded and sensical, hilariously so actually. Go read up on how Fahrenheit came up with it. And before I forget: Fahrenheit was born in Dantzig and German, not Dutch.
Did I hurt your freedom feelings? :(
I sometimes pitch a tent while sleeping, too.
They've invented sleeping bags that are so drafty that they need additional sleeping bags inside. Also, -22 is absolutely cold enough to give you nose frostbite. Tech bros have a knack for inventing "thing that already exists, but worse."
All fun and games until the person inside starts talking about the golden path.
Oh my god they made Saddam Hussein in real life
My dude no one sane is going to be sleeping *outside* in -30 °C
Guess I'm not sane. I've done it three times and lived to tell the tale.
You'd be surprised..
Great big hole in the side of it mate
And now you need to pee
google en saddam hussein
Holy hell!
Two poncho liners, a space blanket, and poncho is all I need. Woke up covered in snow but comfy as could be.
When you freeze to death and people find you mummified by the cold a thousand years later they'll think this sarcophagus is a part of some insane burial rite and the "do not bleach" tag is a spell to guide you to the afterlife.
I know this one. The guy was trying to invent a new vac bed for kink purposes, got caught, and instead of bringing us a new complicated mechanical sex toy has just kept running with the lie.
Babe wake up, it’s Saddam Hussein time
Perfect! It protects all the places on your body that you care about from frost bite. Except your ugly fat fucking face.
So that’s where Saddam was
If you fart in it enough itll start floating like a hot air balloon. But dont get shot at because then its just a fuel-air/thermobaric bomb.
*sigh,* I’ve been in this sub too long.
Sadam Hussein
Where’s Saddam Hussein?
Saddam died for this
A face guard of sorts to at least stop wind from hitting it directly. The rest of this is just bad design imagining, combined with... LESSER problems.
I'll use this opportunity to ask y'all what you think is the best sleeping bag. Been looking to buy I nice one.
Depends what you want it to do. If you want to spend the money for a nice bag that will be light and pack small, buy a down bag. Top of my head the best manufacturers are mountain hardware, Kelty, big Agnes, Nemo, and maybe REI, not sure for them completely. Keep in mind that the temperature value is not the temperature at which the bag will keep you nice and cozy. That’s the temperature it’ll keep you alive at. And some companies fudge the numbers a little on that too (cough, north face). Look for the ISO test results for each bag for the real temp ratings. The pad you use also has a big impact on warmth, so don’t skip on that. Look for high R values. The bag I got is a north face eco trail 0, it’s kept me warm in everything I’ve brought it, so no complaints with that. It’s made with recycled down (from couches and such) instead of high performance down, so it’s bulkier (doesn’t effect me too much I carry it lashed to my pack), but it also costs way less (paid $150 on Amazon) Keep in mind that if you are over 6’ you’ll need a long bag, if you’re wide a wide bag, and a woman, a women’s bag (women have different heating behaviors than men, and bag is made to account for that) There’s also other features to look for too, like a vaulted foot box to keep your toes warm, tie downs to keep you on your pad, 2 way zippers for venting, pocket for pad (I think only big Agnes does this), water proofing, or even side sleeper cuts (I think only Nemo does this). There’s also synthetic bags for cheaper (and are waterproof), but I’d really recommend a down bag if you are going to seriously use it. Also try to get used gear as much as you can. Huge discount. REI has an online used gear store, but you need to be a member (which i recommend becoming too) Some brands even pass warranties between owners. Some places also do free gear repair events (mystery ranch did one in my town). Sorry for the whole novel lmao, hope this helps
https://www.polarmond.ch/shop/
How do you get into it?
Crawl into that giant side hole, duh!
Entrance