The Youtube Video Thread

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Goofy

Goofy

Pluto's my bitch...
Jan 23, 2008
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Smallest state in the Union
The world's most useless machine.
[M]http://www.youtube.com/watch?v=UmQ5LsNMXZ4&feature=player_embedded[/M]

A somewhat useful machine.
[M]http://www.youtube.com/watch?feature=player_detailpage&v=TVyLuosZ1rY[/M]

Way too much free time.
[M]http://www.youtube.com/watch?v=7LjnhhtHojM&feature=player_embedded#at=237[/M]
 
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SleepyHe4d

fap fap fap
Jan 20, 2008
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Goofy said:
The world's most useless machine.
[M]http://www.youtube.com/watch?v=UmQ5LsNMXZ4&feature=player_embedded[/M]
Click to expand...

LOL, I just want to put a huge sign on the side that says, "DO NOT FLIP SWITCH."
youtube comment said:
Why build a self-defeating machine like this? Its only purpose is to self-terminate. Is it supposed to be a metaphor for existentialism?
Click to expand...
Haha, this guy...


Goofy said:
Way too much free time.
[M]http://www.youtube.com/watch?v=7LjnhhtHojM&feature=player_embedded#at=237[/M]
Click to expand...

Should've used a smaller projectile.
 
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SleepyHe4d

fap fap fap
Jan 20, 2008
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And where does that say a smaller projectile will not go faster?

Just because it's not as efficient doesn't mean that it wouldn't go faster.

Projectile Mass
Lower Mass projectiles will travel faster as KE=1/2mV^2. Unfortunately the material must be a ferrous/ferromagnetic one and so the weight is fairly set per unit volume. The mass is needed as it is the magnetisable mass that the coil gun uses to attract the projectile into the coil. If the projectile is too small the iron will ”saturate” meaning it is entirely magnetised and if a larger core was used more material could potentially be magnetised. Optimally, the coil gun should not saturate the projectile but come infinitely close to doing so.
Click to expand...
http://www.instructables.com/id/Coil-Gun-Projectiles/

From what I understand he could just use a series of smaller coils instead of one big one. :p
 
Teridax

Teridax

Fresh meat.
Nov 2, 2008
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[M]http://www.youtube.com/watch?v=BQOWWH9Gbr4&feature=related[/M]
[M]http://www.youtube.com/watch?v=WcxZJxjghhs&feature=related[/M]
[M]http://www.youtube.com/watch?v=SWXcDZNgOWs&feature=related[/M]
 
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