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latest user's comments
|#32 - I thought the new season starts on the 17th [+] (1 new reply)||08/09/2013 on Traveling like a Boss||0|
|#14 - Imagine smashing raiders' heads off using wii motion plus. So …||07/08/2013 on This needs to be a thing!||0|
|#20 - And for good reasons too. It'll just give then another reason …||06/27/2013 on GTA Logic||0|
|#24 - So if the tube was made out of gold or graphene instead of cop… [+] (2 new replies)||06/25/2013 on Gravity Machine||0|
#26 - karlossacramento (06/25/2013) [-]
the better the conductivity, the smaller the velocity.
the induced Voltage is proportional the the speed of the magnet.
with the following formula:
U = R*I => I = U/R and since B is proportionate to I, you can see that the lower the ressistance, the stronger the induced magnetic field for a fixed velocity and therefore a stronger force that is slowing down the movement. that means for a higher conductivity of the tube, the magnet falls slower.
about graphene: I'm not entirely sure if it is possible to reproduce this effect with graphene, since graphene is a material with the thickness of an atom(which might interfere with inductive events) and its conductive properties are not comparable to metallic conductivity. maybe it's possible, maybe it's not.
|#48 - On the outdating part I agree 100%, PCs get outdated almost ye…||06/11/2013 on The King has returned||+1|
|#295 - nice im exactly the same, where you from? [+] (1 new reply)||04/08/2013 on Which are you?||0|
|#36 - For North Korea, sure they ain't got **** on you … [+] (3 new replies)||03/31/2013 on Nuclear War||-1|
#83 - captchakid (03/31/2013) [-]
China is actually trying to control N.K. Russia don't give no fucks, they got meteors to worry about, and the US could singlehandedly wipe out Russia and China in a war. Remember how we're across an ocean or two from either of them? Well, maybe not Alaska, but point still stands. We have the largest most technologically advanced military force, each branch having its own overpowered weapon of choice. Navy's got Nuclear subs, nuclear carriers, and missile cruisers, not to mention the fucking Seals. The Army? They've got the Marines. Air Force's got drones n shit. No way anyone is gonna raid the mainland with soldiers, since everyone and their brother's got a gun or three in the US.
|#245 - Anybody got the original? [+] (1 new reply)||01/08/2013 on meanwhile, on FJ||+1|
|#35 - anybody know the creator of these comics? I know I've seen oth…||11/18/2012 on The story of red spy||0|
|#19 - just take the pipe, moisten it up in water, and hold it over a…||10/22/2012 on Making my first pipe.||0|
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