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DiggityDoink posted:You can get cheap rear end knives super sharp with the right whetstones, a dollar sharpening stone though, probably not. The worst that will happen though is the knives will just dull faster than high quality ones. Get a strop and learn how to use it for razor sharp knives. I buy cheap knives on Amazon all the time and get them razor sharp.
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Feb 25, 2018 10:02
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The unglazed underside of a coffee mug or bowl or whatever works good for sharpening knives if you don't have access to regular sharpening equipment.  And it's just plain convenient. Knife getting a bit dull in the kitchen? Just flip over a mug in the sink, sharpen and rinse, no need to get out a bunch of whetstones or diamond files or whatever.
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Feb 25, 2018 10:18
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This reminded me of when my dad took us to see the sprint cars race at the Perth Motorplex years ago and he got whipped in the side of the face and neck by a chunk of compacted dirt that was flung off the track. We were sitting about half-way up the stands so the chunk was flung a good 30m from the track. He was OK but had a pretty big bruise. Of course in that GIF the dude would have been killed...
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Feb 25, 2018 11:36
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Elysiume posted:With a dollar knife, the worst thing that happens is it goes dull really fast (as long as it isn't made out lead or something). Yeah. You'd think that nothing could go wrong with a tool that is basically a long metal stick, but I'd be worried that it would explode into sharp metal fragments when used.
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Feb 25, 2018 14:22
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PhazonLink posted:Some potential OSHA: $1 tools. Cheap multimeters scare the hell out of me. Some of these I wouldn’t even use on 120V household circuitry, let alone commercial or industrial systems at 277/480 or 347/600 volts with tremendous fault capability. http://www.ecmweb.com/arc-flash/case-deadly-arc-flash From the article: “For reasons we will never know, after checking all three phases, he made a comment to the effect that something was not right — and returned to the center lug a second time. As he made this measurement, a fireball erupted from the panel, severely burning all three individuals and causing significant damage to the electrical equipment and surrounding area.” “The meter design was defective for making measurements as advertised on industrial electrical systems. It could not withstand the voltage transients present on such systems, and the fuse was unable to interrupt the fault current that resulted from an internal failure.” Three-Phase fucked around with this message at 14:29 on Feb 25, 2018 |
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Feb 25, 2018 14:26
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JB50 posted:Get a strop and learn how to use it for razor sharp knives. 
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Feb 25, 2018 14:48
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Don't you run out of knives all the time?
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Feb 25, 2018 15:47
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SelenicMartian posted:Don't you run out of knives all the time? I buy tinfoil by the roll instead of producing it myself one slice at a time.
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Feb 25, 2018 15:49
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https://i.imgur.com/hIKUlof.mp4 Okay, I get that you could probably sync up those rotors to the point where there's minimal risk of spontaneous disintegration, but still... why even risk it?
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Feb 25, 2018 16:42
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Perestroika posted:https://i.imgur.com/hIKUlof.mp4 Chinooks are no different. A very good reason to have two rotors is that you can counter-rotate them wrt eachother, cancelling out the tendency for the helicopter to spin, meaning you don't need a tail rotor.
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Feb 25, 2018 16:47
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Pretty sure the rotors are geared together so there is literally no risk of them going out of sync outside of the gears failing in which case you're hosed anyway.
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Feb 25, 2018 16:49
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Perestroika posted:https://i.imgur.com/hIKUlof.mp4 If you really wanted more safety, you should get fixed lifting surfaces and keep your propulsion separately.
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Feb 25, 2018 17:00
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Perestroika posted:https://i.imgur.com/hIKUlof.mp4 The real problem here is that the rotors will tangle the airframe parachute.
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Feb 25, 2018 17:12
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Not sure if that's a joke but any helicopter airframe with an airframe parachute ejects the rotor blades before deploying the parachute. Same goes for pilot ejection systems.
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Feb 25, 2018 17:15
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tactlessbastard posted:If you really wanted more safety, you should get fixed lifting surfaces and keep your propulsion separately. Let's not get too crazy now.
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Feb 25, 2018 17:18
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why does that helicopter even need dual blades, at least the chinooks are for heavy lifting
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Feb 25, 2018 17:21
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Snowglobe of Doom posted:If anyone else is curious, his online handle is Nasty The Horse and he bills himself as the "King Of The Nutshot" He has a stunt demo reel out there where he's doing proper stunts, and he could probably make a career out of it. It seems like the problem is he has a terminal need for attention and/or pain and instead just destroys his genitals.
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Feb 25, 2018 17:23
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Extra good for chopping heads off of people for approaching idling helicopter from wrong angles.
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Feb 25, 2018 17:24
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Raskolnikov38 posted:why does that helicopter even need dual blades, at least the chinooks are for heavy lifting
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Feb 25, 2018 17:24
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Raskolnikov38 posted:why does that helicopter even need dual blades, at least the chinooks are for heavy lifting Helicopters require two sets of blades one way or another to not spin out.
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Feb 25, 2018 17:31
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0toShifty posted:Extra good for chopping heads off of people for approaching idling helicopter from wrong angles. I travel on helicopters regularly as part of working off-shore and whenever I see people on TV approaching helicopters from the front I just instinctively cringe. We're usually flown out on either Sikorsky S-92 or Eurocopter EC225 airframes but the safety case is the same: always approach from the side as directed by ground crews (This image is the closest I could find to those from the safety briefings we get).  Running round the front or the back is just loving insane imo.
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Feb 25, 2018 17:34
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Raskolnikov38 posted:why does that helicopter even need dual blades, at least the chinooks are for heavy lifting Bum the Sad posted:I think that’s some kind of heavy lifting helicopter. https://en.wikipedia.org/wiki/Kaman_K-MAX Yeah here it is The Kaman K-MAX (company designation K-1200) is an American helicopter with intermeshing rotors (synchropter) by Kaman Aircraft. It is optimized for external cargo load operations, and is able to lift a payload of over 6,000 pounds
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Feb 25, 2018 17:36
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Using two rotors also means you don't need a tail rotor.
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Feb 25, 2018 17:42
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cheese-cube posted:I travel on helicopters regularly as part of working off-shore and whenever I see people on TV approaching helicopters from the front I just instinctively cringe. We're usually flown out on either Sikorsky S-92 or Eurocopter EC225 airframes but the safety case is the same: always approach from the side as directed by ground crews (This image is the closest I could find to those from the safety briefings we get). In ARMA 3 when you pick up crew in a helicopter that doesn’t have a door in the back like a Chinook they always line up in the front “safe zone” and approach single-file. So I think that’s one of many details the ARMA series gets right. Also I think you can kill people if you launch countermeasures while picking up people on the ground. I sure as hell wouldn’t want a flaming chunk of metal launched into my face. Three-Phase fucked around with this message at 17:44 on Feb 25, 2018 |
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Feb 25, 2018 17:42
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Mtthnsly posted:He's not a great person to for. Also that DUI was on his way to work so... I had a coworker who blew .24 or something on his way to work and was mad at the cop for pulling him over and arresting him.
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Feb 25, 2018 17:46
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Raskolnikov38 posted:why does that helicopter even need dual blades, at least the chinooks are for heavy lifting Dual rotors add mechanical complexity by adding a second rotor, but lose the tail rotor which also gets rid of some complexity. Having two rotors also allows for mo lifting force without have to add larger diameter or more rotor blades on each spindle which might be advantageous. I believe that that helicopter is fairly unusual and usually the rotor planes don't overlap and are instead stacked like on the KM-25/27/30s and KA-50.   I suspect the Chinook has dual rotors front to back because it allows for a more evenly spread and stable lifting force along the relatively long fuselage. Having dual rotors overlapping is really a non-issue anyways though. If you have two rotors and you lose one you are already going auto-rotate to the ground just the same as on a single rotor design with a tail rotor. If you have overlapping rotor planes then you just get there a lot faster. And that's assuming that the rotors just get disengaged. If a rotor on any helicopter actually flies apart then you are screwed.
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Feb 25, 2018 17:55
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-Zydeco- posted:If a rotor on any helicopter actually flies apart then you are screwed. Could you be any more wrong  https://www.youtube.com/watch?v=ca0dVDO3yBw&t=14s
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Feb 25, 2018 17:58
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Three-Phase posted:Also I think you can kill people if you launch countermeasures while picking up people on the ground. I sure as hell wouldn’t want a flaming chunk of metal launched into my face. Yes, countermeasure flare dispensers are oriented perpendicular to the airframe so if you were standing next to a helo and it decided to launch flares you'd run a high risk of being hit with very hot metal.
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Feb 25, 2018 18:05
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Helicopters are powered by the blood of the innocent and need to be refueled on a regular basis. They spit in the eyes of the gods of aerodynamics and say "gently caress you, I do what I want."
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Feb 25, 2018 20:53
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Bip Roberts posted:Helicopters require two sets of blades one way or another to not spin out. Not if you use the jet exhaust from the engine to counteract the rotor torque  https://en.wikipedia.org/wiki/NOTAR Or put ramjet engines in the blade tips so no torque is applied to the fuselage  https://en.wikipedia.org/wiki/Tip_jet
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Feb 25, 2018 21:00
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Holy poo poo. The description likens it to a firework that can’t be good.
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Feb 25, 2018 21:08
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My favorite part of that article is right at the bottom See also: Aeliopile
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Feb 25, 2018 21:12
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I remember seeing one of those helicopters or a similar one used for logging.
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Feb 25, 2018 23:47
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Feb 25, 2018 23:54
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Stock America's classrooms with tannerite-filled refrigerators to defend against active shooters.
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Feb 25, 2018 23:58
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Some moron once filled a lawnmower up with tannerite and when he shot it from way too close, the blade went flying towards him and chopped his leg off.
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Feb 26, 2018 00:09
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AH BLEW OFF MAH LEAYIHG
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Feb 26, 2018 00:52
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 Also, Dutch athletes celebrating their olympic wins threw a huge metal medal into a crowd and injured two people  https://sportnieuws.nl/overig/olympische-spelen/hommeles-holland-heineken-house-schaatsers-smijten-plaat-zaal-2-gewonden/
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Feb 26, 2018 01:25
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Feb 26, 2018 01:29
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The only way to defeat Optimus Prime's vampire form
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Feb 26, 2018 01:31
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