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Oh and a bit about a general progression of Bitcoin rig tech and how OHSA it got. In the beginning it all was about the GPU, so people kept AMD afloat by buying out tons of Radeon cards running in SLI rigs that hashed out the maths faster. But these get warm. So this meant you had machines like so: And then GPUs became old hat when ASICs came in - basically chips dedicated to mining and not having to rely using a whole system to run a graphics card. As these chips were able to be powered by USB you got this. There were quite a few stories of cheap USB arrays melting.
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# ? Nov 14, 2015 01:57 |
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# ? Jun 7, 2024 09:57 |
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Is that a piss jar
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# ? Nov 14, 2015 02:08 |
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Wedemeyer posted:Is that a piss jar It's oil. Oil is an insulator and absorbs heat really well. (It's also flammable so you need to be careful.) Three-Phase fucked around with this message at 02:13 on Nov 14, 2015 |
# ? Nov 14, 2015 02:09 |
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*Moving* oil makes a great coolant. That guy's going to end up with a broken bitcoin miner sitting in really hot stagnant oil.
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# ? Nov 14, 2015 02:12 |
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haveblue posted:*Moving* oil makes a great coolant. That guy's going to end up with a broken bitcoin miner sitting in really hot stagnant oil. Absolutely correct. If you're clever you can use the natural convection effect for cooling so you don't need to pump oil, a lot of power transformers do that. (There are different types, ONAN, oil natural air natural, ONAF, oil natural air forced using fans, or OFAF oil forced air forced, with a pump for the oil and radiator fans.) The scariest thing I ever saw was some moron dropping a hairdryer into an aquarium filled with oil to demonstrate the heat absorption. The hairdryer was just fine until he pulled it up out of the oil while it was still running and almost set the drat thing on fire! Three-Phase fucked around with this message at 02:22 on Nov 14, 2015 |
# ? Nov 14, 2015 02:18 |
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The Woolong device was an Atlas thing and not Bruce. There was another sad case...
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# ? Nov 14, 2015 02:44 |
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Three-Phase posted:Absolutely correct. If you're clever you can use the natural convection effect for cooling so you don't need to pump oil, a lot of power transformers do that. (There are different types, ONAN, oil natural air natural, ONAF, oil natural air forced using fans, or OFAF oil forced air forced, with a pump for the oil and radiator fans.) Hmm, sounds like we're halfway to making a badass flamethower
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# ? Nov 14, 2015 03:11 |
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WebDog posted:Three-Olives dug around and discovered that Bruce was on the run from a series of mortgage frauds committed during the height of the housing crisis and the FBI were interested in where he was. This is the kind of thing that is the opposite of funny to do
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# ? Nov 14, 2015 03:20 |
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Larry Parrish posted:This is the kind of thing that is the opposite of funny to do you would think you could be right but that's because you didn't know coiners started accusing three olives of being a homophobe for this
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# ? Nov 14, 2015 03:59 |
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A airline pilot got fired for ordering a evacuation after his plane started smoking. http://www.reviewjournal.com/news/las-vegas/allegiant-pilot-files-lawsuit-over-being-fired-emergency-landing quote:Just after the flight had become airborne, Kinzer said that he received "frantic calls" from flight attendants that passengers were smelling smoke in the rear of the aircraft. Kinzer made the decision to declare an emergency and return to the airport.
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# ? Nov 14, 2015 05:32 |
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Phanatic posted:That's great. Lol we work for the same company. Probably even the same business unit? I still have my jumper cables. They are hilarious.
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# ? Nov 14, 2015 05:37 |
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haveblue posted:*Moving* oil makes a great coolant. That guy's going to end up with a broken bitcoin miner sitting in really hot stagnant oil. Real men use fluorinert
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# ? Nov 14, 2015 06:02 |
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Azhais posted:Real men use fluorinert I think that isn't cheap and depletes the ozone layer. I don't know if they use that on any of the newer Cray systems or not, but that was used on older ones. For some larger generators they just use hydrogen gas.
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# ? Nov 14, 2015 06:05 |
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Pages back, but did they run UNDER the crane?! What if its line snapped or one of a million connections failed?
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# ? Nov 14, 2015 06:10 |
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Three-Phase posted:I think that isn't cheap and depletes the ozone layer. I don't know if they use that on any of the newer Cray systems or not, but that was used on older ones. Nah, the current systems are all air cooled
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# ? Nov 14, 2015 07:14 |
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I remember you could get dried strawberries using a buttcoin miner-powered dehydrator.
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# ? Nov 14, 2015 08:33 |
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DemeaninDemon posted:I remember you could get dried strawberries using a buttcoin miner-powered dehydrator. Blueberries, too.
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# ? Nov 14, 2015 08:48 |
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KozmoNaut posted:This does not seem particularly safe.
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# ? Nov 14, 2015 09:37 |
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I just got round to watching that adapter o death video, and I woke the cat up with my "oh gently caress!"
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# ? Nov 14, 2015 10:19 |
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Adix posted:you would think you could be right but that's because you didn't know coiners started accusing three olives of being a homophobe for this Get this: internet detective stuff is never funny. Ever. It's poo poo autists do to get laughs out of 40 year old clinically depressed computer janitors.
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# ? Nov 14, 2015 11:13 |
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The world would be a safer place if this were installed on every truck: https://www.youtube.com/watch?v=ydAlbGRUAas
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# ? Nov 14, 2015 15:43 |
Carbon dioxide posted:The world would be a safer place if this were installed on every truck:
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# ? Nov 14, 2015 15:47 |
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Larry Parrish posted:Get this: internet detective stuff is never funny. Ever. It's poo poo autists do to get laughs out of 40 year old clinically depressed computer janitors.
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# ? Nov 14, 2015 17:41 |
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There's also this. screwdriver that detects AC power. But only some of the time. https://www.youtube.com/watch?v=wLAJ-keFmpk "All that time you had a lethal voltage on those terminals. Sometimes it works, sometimes it does not." I've used these little detectors before. https://www.youtube.com/watch?v=MWH6xqq-qY0 The important thing to remember in an industrial environment is that those little no-contact detectors do NOT work on DC voltage. So if you are working on a 500VDC battery bank for a large UPS or a 125VDC system for switchgear, you cannot use a detector like that, you must always check using a voltmeter. I think those little flukes work up to 1000Vac. At 2400V/4160V they start to beep at about three to four inches away. . One last thing I found: really, REALLY REALLY dangerous multi-tap. That wire is not supposed to get anywhere near that hot! https://www.youtube.com/watch?v=KzP6OPK9zSI "The [power] cable is melting in the most disgusting way possible." Three-Phase fucked around with this message at 03:18 on Nov 15, 2015 |
# ? Nov 15, 2015 03:03 |
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not caught up on the thread but I have today i worked in the engine room of a ship. there were three fires in the space of about eight minutes. welders working on top of us in a recently painted room that hadn't been cleared of oily rags. first fire: I didn't see, but I saw smoke and was like "wtf is there a fire? impossible, lol!" and yep someone was stomping it out. crisis averted. second fire: spot welder threw some sparks onto a hoodie, goes up. I grab it, open a door, off the ship into the water. massive VWOOSH flames, not little tiny sparks. open up the door for ventilation so we don't asphyxiate. I get one of the painters fans pushing fresh air into the (cramped and poorly ventilated) hold. third fire: sparks into a PLASTIC BUCKET OF PAINT. it's on fire. the welder drops his poo poo, grabs the bucket, runs it outside, throws it into the water. chemical spill!!!!1 at this point im like hmm maybe someone should clean up all these oily rags? so i do that but also get a fire extinguisher and tell everyone ITS OKAY TO USE A FIRE EXTINGUISHER YOU DON'T HAVE TO STOMP OUT FIRES! there's like eight people (our entire department!) working in the room, plus welders. everyone has seen it. the Boss knows. nobody tells the safety officer. i am warned multiple times if I report it, everyone will be written up (and probably docked pay). I'm pretty sure this is illegal. This all happened saturday morning, so I have until Monday to decide what the hell I'm going to do. as a reward for surviving my first encounter with fire in a goddamn enclosed space, i bought myself some new tool pouches. it didn't feel like enough. EPILOGUE: the guy whose hoodie that was was extremely bitchy about it. at first i was sympathetic but he wouldn't shut up and now i hate him. also i'm really pissed that I'm the only one who thinks this was life threatening & a Big Deal froward fucked around with this message at 03:32 on Nov 15, 2015 |
# ? Nov 15, 2015 03:17 |
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froward posted:not caught up on the thread but I have Report it and report that they said not to report it Then burn them all
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# ? Nov 15, 2015 04:13 |
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froward posted:today i worked in the engine room of a ship. there were three fires in the space of about eight minutes. welders working on top of us in a recently painted room that hadn't been cleared of oily rags. So many hot work regulations being broken. I've been places where scraping paint is considered hot work since it can make sparks and someone has to monitor the area for a half hour afterwards to make sure there's no fires.
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# ? Nov 15, 2015 04:23 |
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# ? Nov 15, 2015 04:35 |
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Stop posting poo poo without context retard.
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# ? Nov 15, 2015 04:39 |
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He's a stunt man and it was for a TV show https://www.youtube.com/watch?v=QF2lNhByI5c&t=134s
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# ? Nov 15, 2015 05:02 |
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Came across this backhoe use on my Facebook and I'm not sure if it's OSHA, laziness, or kinda awesome.
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# ? Nov 15, 2015 05:20 |
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Improbable Lobster posted:Report it and report that they said not to report it Already documented on this site, which is being archived by the library of congress. That should inform his choices.
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# ? Nov 15, 2015 05:39 |
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Thin Privilege posted:I know my internet word doesn't stand for anything but the iPod overheating on me really did happen. I just checked with a former coworker and he said the FW would make the USB iPods charge faster and "sometimes put them back to life if the battery was totally dead" so there definitely was more power from the FW. Maybe it was a defective cable/iPod in my situation, but it's still pretty stupid imo to have those 2 different types of cables be the same 30 pin. For a while iPods would sync and charge over both USB and Firewire. Both used the same 30 pin connector on the iPod side but used completely separate sets of pins due to the different power and data comm requirements. Eventually Apple stopped installing the hardware that allowed for Firewire data connections but kept the charging capability and once the lightning port came along (maybe before) they dropped the circuitry supporting that as well. I remember using Firewire cables / chargers long after they introduced USB support because it was so much faster. Even when they dropped support for the data connections I had Firewire chargers around the house for a long time.
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# ? Nov 15, 2015 06:13 |
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froward posted:not caught up on the thread but I have How do you guys not have a fire extinguisher nearby if you're doing hot work? Do you know know if the welders are filing hot work permits with the safety officer? What exactly is it you do? You must be working with some lovely welders if they go into a room with oily rags and still think its safe enough to work.
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# ? Nov 15, 2015 06:14 |
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Alternative to reporting the safety conditions: get injured, lawyer up, sue.
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# ? Nov 15, 2015 06:17 |
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Three-Phase posted:One last thing I found: really, REALLY REALLY dangerous multi-tap. That wire is not supposed to get anywhere near that hot! Totally safe to have the wire turn into a gooey, crunchy mess after skyrocketing to 300C after 10 amps. That seems like the adapter one might buy for arson purposes. Oh poo poo, he can't extinguish the case once it catches fire. OMG.
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# ? Nov 15, 2015 06:30 |
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Three-Phase posted:There's also this. screwdriver that detects AC power. But only some of the time. For that one you should also watch part 1: https://www.youtube.com/watch?v=e0ghsODkqUQ If you don't want to watch the whole thing (there's quite a bit of padding/unnecessary overexplaining) watch the part at 4:20 where he catches a hilarious typo in the packaging and notes that the cord is almost impossible to unravel, the part at 8:25 where he tests the ground continuity, the part at 12:35 where he opens it up and reveals the incredibly horrible workmanship, the part at 19:55 where he examines the cord's insulation and wire quality, and finally the part at 25:25 where he measures the resistance of the cord (it's bad enough that 300 C at 10 amps makes perfect sense). Mr.Radar fucked around with this message at 07:30 on Nov 15, 2015 |
# ? Nov 15, 2015 07:27 |
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Three-Phase posted:https://www.youtube.com/watch?v=wLAJ-keFmpk This guy either does not know what he has there, or he was purposely misleading. Not once did he use the words "phase tester", which is what these things are (and all that they're usable for): distinguishing the live and neutral wires. You'll notice that when he demonstrates the devices "not working", he never moves them to the second terminal to confirm that they also show nothing there. Got this from my grandfather 30+ years ago. I have no idea when it was made, it's certainly older than 50 years.
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# ? Nov 15, 2015 09:29 |
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I much prefer photonicinduction's look at those screwdrivers: https://www.youtube.com/watch?v=AGXQNLq19FQ
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# ? Nov 15, 2015 09:44 |
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# ? Jun 7, 2024 09:57 |
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Zopotantor posted:This guy either does not know what he has there, or he was purposely misleading. Not once did he use the words "phase tester", which is what these things are (and all that they're usable for): distinguishing the live and neutral wires. You'll notice that when he demonstrates the devices "not working", he never moves them to the second terminal to confirm that they also show nothing there. I found myself pretty annoyed that he wasn't at all explaining the difference between the times when it worked and the times when it didn't. Wikipedia is not helping me out, will someone please explain how these things are supposed to work if the answer isn't "ground the hot side through your body"?
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# ? Nov 15, 2015 17:21 |