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#4 - JFINE
Reply +70
(02/09/2013) [-]
Comment Picture
#74 to #4 - anon
Reply 0
(02/10/2013) [-]
#18 - snaketail
Reply +48
(02/10/2013) [-]
Do you?
#59 to #18 - jubnik ONLINE
Reply +2
(02/10/2013) [-]
the lift on the bottom seems unessassary
#19 - babyweewee
Reply +35
(02/10/2013) [-]
Comment Picture
#62 - onezeroeight
Reply +32
(02/10/2013) [-]
Do you even?
#48 - powerfapping
Reply +27
(02/10/2013) [-]
Correct me if I'm wrong, but is this just a demonstration using magnets to illustrate the conservation of momentum?
#53 to #48 - jaedi
Reply +1
(02/10/2013) [-]
Check out the change in velocity between the incoming ball and the outgoing ball. A little bit more than conservation is at work here.
#54 to #53 - powerfapping
Reply 0
(02/10/2013) [-]
Well look at the magnet before the ball impacts it. It accelerates towards the ball at a high speed, which in turn fires off the end ball because of the conservation of momentum.
#55 to #54 - jaedi
Reply 0
(02/10/2013) [-]
This is true, but the ball at the end leaves with a greater speed than the input ball had, even if you include the magnetic attraction that the ball felt when it accelerated to start the chain, the leaving ball felt the same attraction as it left and still left faster.
#56 to #55 - powerfapping
Reply 0
(02/10/2013) [-]
The key here is to look at each collision as a separate part of the system. Momentum is conserved between each individual collision. The first ball strikes the magnet and in order to conserve momentum, the end ball is fired off. Then that ball becomes the first ball and strikes the second magnet and so on. However, each ball which gets fired off has a higher initial velocity which means a greater force is enacted on the end ball to conserve momentum. Momentum is conserved in each collision even though the system gains momentum as a whole.
#57 to #56 - jaedi
Reply +1
(02/10/2013) [-]
I feel like my physics teacher would be a little irritated with me because I mixed up kinetic energy and momentum, and so I guess the 'magic' of the increasing ball speed comes from the fact that all of the sets of magnets move backwards as it shoots along, deceptively adding up to quite a bit of momentum for the single shot.
#51 - morningwoodstock
Reply +23
(02/10/2013) [-]
#1 - grpeephole
Reply +23
(02/09/2013) [-]
now i know how to make a powerderless gun :3
#5 to #1 - dennisc
Reply +2
(02/09/2013) [-]
http://scitoys.com/scitoys/scitoys/magnets/gauss.html

Don't think it will actually do much damage as a gun though, even if you make it long enough.
#28 to #5 - heisenberg
Reply 0
(02/10/2013) [-]
This one will
http:// www.instructables. com/id/Make-poweful-a-green-railgun/
#77 - adambubba
-23
has deleted their comment [-]
#84 to #77 - adambubba
-3
has deleted their comment [-]
#90 to #77 - upyoursnumbnuts ONLINE
Reply +1
(02/10/2013) [-]
I want to rape her face.
#97 to #77 - underlois
Reply +1
(02/10/2013) [-]
#86 to #77 - Deathfyre
Reply +20
(02/10/2013) [-]
Comment Picture
#6 - domethius
Reply +18
(02/10/2013) [-]
Apparently, it lifts.
#69 - slenderwolf
Reply +14
(02/10/2013) [-]
I'll just leave this right here.
I'll just leave this right here.
#89 to #69 - summonsplix
Reply 0
(02/10/2013) [-]
#112 to #69 - anon
Reply 0
(02/15/2013) [-]
UR STILL SCARING ME T.T
#70 to #69 - aazz [OP]
Reply +3
(02/10/2013) [-]
#72 to #69 - pixelpixel
Reply +3
(02/10/2013) [-]
what am i doing with my life ..