GPS, relativity, and nuclear detection

GPS is just a big clock in space! (and it can detect nuclear explosions)
From MinutePhysics

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Comments

12 comments posted so far. Expand all comments Login to add a comment.

Picture of DarkiKun41 achievements

+18

1. DarkiKun 188 days ago

very interesting, i had no idea it worked with "time", i gotta find out more about how that really works, very interesting indeed :O

Picture of master_shake33 achievements

+3

2. master_shake 188 days ago

Its not the height of the clock, but the speed of the clock that alters its time due to special relativity (moving closer to speed of light=time slow down)

Picture of cretia27 achievements

+6

3. cretia 188 days ago

so all i need to do is put myself in a very strong gravitational field and i can time travel

Picture of LightAng3l44 achievements

+2

4. LightAng3l 188 days ago

I'm sorry, you can thumb my comment down to the depths of hell, but there are several things in this video that are not true...

Picture of gringo40 achievements

+9

5. gringo 188 days ago

#4 well if you make a statement like that you should at least tell us what your arguments are!

Picture of krillemaster33 achievements

+2

6. krillemaster 188 days ago

i knew this! *proud*

Picture of orion25 achievements

+1

7. orion 188 days ago

#2 the video correctly states you have to account for both corrections. Read up on general relativity.

Picture of Chogath34 achievements

+8

8. Chogath 188 days ago

we actually need to detect nuclear before detonation.... that would be nice..

Picture of c0mmanderKeen36 achievements

+4

9. c0mmanderKeen 188 days ago

I knew how gps works but what does detection of nuclear expolosions have to do with anything ???

Picture of Sebastien45 achievements

+2

10. Sebastien 188 days ago

#4 Well, you're the genius... tell us

Picture of loadrunner42 achievements

+1

11. loadrunner 187 days ago

I dont need GPS to detect a nucleair explosion
http://www.snotr.com/video/398/Nuclear_explosions

I bet they can detect when someone farts, and who it is.

but awesome btw.

Picture of Granko19 achievements

+1

12. Granko 187 days ago

How can GSP satellite detect nuclear explosion (or whatever visible event) when it is basically a trasmitter (not receiver)?