What's the coolest application of physics ever?

[fenrizz]

This [http://www.collegehumor.com/video:1895544] is the most mind-numbing and awesome physics-related thing that I'm aware of.

That actually was pretty awesome.
I need to get me one of those.

 

[hopeneverdies]

Rube Goldberg machines are pretty awesome.

 

[Crabid]

explaination for nuclear rockets [http://en.wikipedia.org/wiki/Nuclear_thermal_rocket]

LOL - I stand corrected, that is very cool...

Propulsion, when I was thinking general power, sorry for being a dick. I just happen to have had the discussion of nuclear power on spaceships/stations before and wrongly assumed that was what you were talking about.

 

[Alleged_Alec]

I gotta go with the tesla coil as well, I'm afraid. I once made one, but the fuses blew every time I tried to turn it on...

 

[Aunel]

cookies, they turn from a liquid, into a delicious treat.

 

[Sporky111]

Plasma. It's so versatile, and yet so beautiful. My favorite is the plasma speaker (look on youtube) where the power source is hooked to music. The changing frequency and amplitude of the arcing plasma makes the music, it's pretty amazing.

 

[LilGherkin]

Ferrofluids are by far the coolest things I have ever seen.

http://www.youtube.com/watch?v=me5Zzm2TXh4

 

[Crabid]

explaination for nuclear rockets [http://en.wikipedia.org/wiki/Nuclear_thermal_rocket]

I was thinking more along the lines of nuclear pulse projection [http://en.wikipedia.org/wiki/Nuclear_pulse_propulsion] myself.

If you are in space you have about no way to get rid of the thermal energy since the only form of heat loss in a spaceship is radiation, so unless you have some form of cold fusion you would like us to know about...

Well, you're going to have to remove the heat from a spaceship anyway, probably with a system of externally-mounted fins with as much surface area as possible. Even hydrogen fuel cells produce heat.

Hydrogen fuel cells may produce heat, however, its negligible compared to almost all other means. And anyway, the decompression of the hydrogen cools a lot more.

Fins I'm not certain would work in space either, radiation is the only way to remove energy from the system, honestly I haven't looked much into current technology on space stations.

 

[Laura.]

I'm impressed nobody said "boob physics".
Maybe there's some hope left after all!

BTW: I saw a documentary about plasma cutters... OMG. Those are awesome.

 

[Vriggchan]

explaination for nuclear rockets [http://en.wikipedia.org/wiki/Nuclear_thermal_rocket]

LOL - I stand corrected, that is very cool...

Propulsion, when I was thinking general power, sorry for being a dick. I just happen to have had the discussion of nuclear power on spaceships/stations before and wrongly assumed that was what you were talking about.

totally cool man I say some far out shit a lot and have to provide a lot of evidence when i talk with my family so i understand.

 

[Virus49]

its gotta be those roller coasters that go upside down but dont require anything to hold you in your seat.

edit: other than a standard bar, I mean no overhead things like you would expect!

 

[The_Chief]

Catapults!

Physics + Heavy Rock + Wood = Medieval Awesomeness.
Napalm helps too.

this

 

[SpikeyGirl]

This:

This is simply awesome.

^ New goal in physics lesson other than sleep

This [http://www.collegehumor.com/video:1895544] is the most mind-numbing and awesome physics-related thing that I'm aware of.

I want one.

Other than those already shown, I have nothing except actually working out this and the whole swinging a bucket of water above your head
V

its gotta be those roller coasters that go upside down but dont require anything to hold you in your seat.

edit: other than a standard bar, I mean no overhead things like you would expect!

 

[new_age_reject]

Plasma.
So awesome!

 

[ckam]

Swings in a playground. Those are fun.

 

[Panken]

Rube Goldberg.

 

[Red Albatross]

Superfluids. They are very cool.

http://en.wikipedia.org/wiki/Superfluid

 

[ILPPendant]

Neodymium magnets AKA DEATH Magnets.

Well, railguns are a lot of fun too.