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Duzzy Funlop posted:I can't imagine why he kept burning even after several people tried to stifle the flames with their jackets and he was rolling on the ground. That kind of behavior is poo poo you'll see from folks drenched in accelerant or fuel. The roof of the stand had layer upon layer of bitumen felt weather proofing. There are accounts of it melting and running down onto people. That would be my guess.
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Jul 8, 2017 23:18
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Duzzy Funlop posted:I can't imagine why he kept burning even after several people tried to stifle the flames with their jackets and he was rolling on the ground. That kind of behavior is poo poo you'll see from folks drenched in accelerant or fuel. The roof was coated in bitumen, and it's entirely possible that some of it had dropped on him. Also it's the 80s, there probably wasn't a non-synthetic fibre anywhere in his wardrobe.
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Jul 8, 2017 23:26
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chitoryu12 posted:Zombie Go Boom mostly wrecks their heads with weapons, but occasionally they have some OSHA of their own. "Warning! The following show features stunts and demonstrations performed by professionals." *idiots in their backyard film friend hurting himself, set it to dubstep*
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Jul 8, 2017 23:56
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Maybe they're professional idiots
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Jul 9, 2017 00:04
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Their public business address is just the house they film at. You can identify it easily on Google Earth because the backyard is filled with junk.
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Jul 9, 2017 00:06
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Ape Has Killed Ape posted:
Professional just means it's their job, not that they are competent 
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Jul 9, 2017 00:23
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Jul 9, 2017 00:42
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Deteriorata posted:Yeah, they're about at the physical limit of what you can pack into a chemically based system. Higher energy density will require a new/different technology. I look forward to molten salt batteries in mobile phones.
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Jul 9, 2017 00:52
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FuturePastNow posted:I remember a Colombo episode where the killer mashed someone's skull in with a big block of ice and then tossed it in the swimming pool. Wasn't this a short story? Woman bashes her husband's skull in with a leg of lamb then roasts it and serves it to the investigating police?
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Jul 9, 2017 00:55
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Memento posted:Wasn't this a short story? Woman bashes her husband's skull in with a leg of lamb then roasts it and serves it to the investigating police? That was "Lamb to the Slaughter", by Roald Dahl. Awesome story.
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Jul 9, 2017 01:03
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Nerses IV posted:One of the many fun things about boom lifts is they're not designed to handle the forces involved in arresting a fall, so if you tumble out while tied off there's a pretty decent chance the thing will tip and kill your rear end anyway. Levers are a bitch. They need some kind of airbag that can expand around the end if it detects that it's tipping over. It's not perfect, but it could save lives.
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Jul 9, 2017 01:15
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Three-Phase posted:They need some kind of airbag that can expand around the end if it detects that it's tipping over. It's not perfect, but it could save lives. Until someone gets the bright idea to fill the inflator with ammonium nitrate and an adulterant to make it a deflagrant because it's cheaper that way. e: Or when the airbag triggers incorrectly. IPCRESS fucked around with this message at 01:41 on Jul 9, 2017 |
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Jul 9, 2017 01:29
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don't forget this classic 
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Jul 9, 2017 01:37
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Nerses IV posted:They're using sonotubes? What motherfucker had the bright idea to stack toilet paper tubes on steroids 50 feet high Previous installations at this museum were an indoor beach, and a giant ball pit.
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Jul 9, 2017 02:17
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Pigsfeet on Rye posted:That was "Lamb to the Slaughter", by Roald Dahl. Awesome story. http://www.classicshorts.com/stories/lamb.html
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Jul 9, 2017 02:20
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VectorSigma posted:don't forget this classic Goddamn this is satisfying.
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Jul 9, 2017 02:30
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Electrical design tidbit: https://youtu.be/zuPKYHSSnIw This slow-motion video shows three bubsars (metal bars that carry electricity, probably a couple hundred amps nominally) with 50,000 amps going through them. While they don't melt or arc you DO see them whipping from the intense magnetic fields generated. When we spec out equipment they list ratings for busbar bracing. Generally I've seen things like 40,000A, 65,000A, or 100,000A or more. Basically that says that in a fault the busbars are braced strongly enough to survive the magnetic forces for a short duration at that many amps. If you ever exceed that fault rating the busbars could tear themselves apart! What's intesting too is the very first movements are much more exaggerated. I think that might have to do with the "subtransient reactance" of the system. Basically when the massive and asymmetric (not balanced between he phases) inrush of current starts you get a fraction of a cycle where the current flow is even higher than the sustained fault current. (You also see this when starting big motors.) Edit: the whipping is even more intense in this test! Sacré bleu! https://youtu.be/KagWdATPG-8 Edit: whipping and standoff failure of high voltage "pipe" conductor carrying 100kA https://youtu.be/2j8D_N1v0tU Three-Phase fucked around with this message at 03:05 on Jul 9, 2017 |
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Jul 9, 2017 02:55
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Three-Phase posted:Electrical design tidbit: At the very end there is an undulating darkness behind the bars. Is that a camera fault, an electrical thing, or a portal opening to the dimension of the Old Ones?
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Jul 9, 2017 03:14
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Three-Phase posted:Edit: whipping and standoff failure of high voltage "pipe" conductor carrying 100kA I dont know if the stresses here or the DVMPEG DEMO are my favourite bits.
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Jul 9, 2017 03:19
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Facebook Aunt posted:At the very end there is an undulating darkness behind the bars. Is that a camera fault, an electrical thing, or a portal opening to the dimension of the Old Ones? I think that might just be a sheet of metal behind the busbars. And hey at least that last video wasn't a camcorder pointed at a screen. Three-Phase fucked around with this message at 03:34 on Jul 9, 2017 |
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Jul 9, 2017 03:28
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Three-Phase posted:Electrical design tidbit: I thought said bulbasaurs and was very confused. Bulbasaur isn't even an electric type!
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Jul 9, 2017 04:11
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Also there is one Zombie Go Boom video that does feature a recreation of a common OSHA problem: what happens if you land on your head after a 50-foot fall? https://www.youtube.com/watch?v=I0qSJQT3Qn0
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Jul 9, 2017 04:11
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Three-Phase posted:They need some kind of airbag that can expand around the end if it detects that it's tipping over. It's not perfect, but it could save lives. Maybe some kind of parachute. Like they have on small planes, I once read somewhere that they are awesome.
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Jul 9, 2017 05:25
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IPCRESS posted:Until someone gets the bright idea to fill the inflator with ammonium nitrate and an adulterant to make it a deflagrant because it's cheaper that way. It warms the cockles of my heart that those problems began the exact month Takata started offshoring production from the plant that was across the street from my high school.
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Jul 9, 2017 06:16
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https://i.imgur.com/gnCHdXa.gifv
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Jul 9, 2017 10:08
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Jul 9, 2017 10:52
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doing your internal organs with crystals if that bag goes off
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Jul 9, 2017 10:53
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Open casket funerals, after a minor front-end collision that normally wouldn't result in anything more than a sore neck, are bad for the guests' chi energy. He's just thinking of them.
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Jul 9, 2017 11:09
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I never really thought about it, what happens to the center piece that holds the airbag in when it deploys? Like even if it didn't have IEDecorations, wouldn't the plastic still go flying straight for her face?
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Jul 9, 2017 11:14
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Turtlicious posted:I never really thought about it, what happens to the center piece that holds the airbag in when it deploys? Like even if it didn't have IEDecorations, wouldn't the plastic still go flying straight for her face? They open like a flower or are scored on the inside in a way that it will flip out the way. However, there's no way whatever craft glue she used there stops those rocks from being flung at high speed into her face.
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Jul 9, 2017 11:26
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Turtlicious posted:I never really thought about it, what happens to the center piece that holds the airbag in when it deploys? Like even if it didn't have IEDecorations, wouldn't the plastic still go flying straight for her face? It opens like a flap and stays attached on one of the four sides.
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Jul 9, 2017 11:26
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Turtlicious posted:I never really thought about it, what happens to the center piece that holds the airbag in when it deploys? Like even if it didn't have IEDecorations, wouldn't the plastic still go flying straight for her face? It has weak points that are designed to give way when the bag deploys, and similar strong points to keep the flaps in place. It pops open in a controlled manner, considering that the thing inflates with literal explosives* in a fraction of a second. * commonly sodium azide which is incredibly toxic and undergoes "violent decomposition" when a sufficient amount of energy is applied to it, such as high heat or say an igniter/blasting cap.
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Jul 9, 2017 11:30
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Yeah, if you watch airbags deploy in slow motion you can see the cover separates in a controlled fashion. I guess the good news for crystal dude is that most of the rocks would probably be ejected up or to the side by the cover flaps, but at the speed they'd be going it'd probably only take on hitting in the wrong place to kill you stone dead.
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Jul 9, 2017 12:38
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Three-Phase posted:They need some kind of airbag that can expand around the end if it detects that it's tipping over. It's not perfect, but it could save lives. Obviously they need a jet ejection system.
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Jul 9, 2017 13:03
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Proteus Jones posted:They open like a flower or are scored on the inside in a way that it will flip out the way. However, there's no way whatever craft glue she used there stops those rocks from being flung at high speed into her face. Unless you have a Takata made airbag...
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Jul 9, 2017 13:37
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mobby_6kl posted:Unless you have a Takata made airbag...
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Jul 9, 2017 13:49
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Ak Gara posted:It's only going to get worse. Platystemon posted:My hot take: batteries won’t be substantially more energy‐dense than they are now.
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Jul 9, 2017 13:49
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evil_bunnY posted:You literally have no idea what you're talking about. The average 18650 today is twice as energy dense as 5 years ago. Average energy density going up is related to manufacturing processes getting better and cheaper over time. The real question is, what is the difference between the maximum energy density of the absolute best 18650 (or whatever cell) from 5 years ago, compared to today?
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Jul 9, 2017 14:56
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evil_bunnY posted:The average 18650 today is twice as energy dense as 5 years ago. Same.
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Jul 9, 2017 15:09
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Skippy McPants posted:Yeah, if you watch airbags deploy in slow motion you can see the cover separates in a controlled fashion. Is...is that the gay kid's dad from Glee and he is actually a mechanic?
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Jul 9, 2017 15:25
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