How GPS works
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The GPS network and how gravity affects time and space. The military operations needed behind the system to keep it in check.
Video Rating: 4 / 5
The GPS network and how gravity affects time and space. The military operations needed behind the system to keep it in check.
Video Rating: 4 / 5
January 30th, 2012 - 19:48
1:33 jesus, he’s picking his ear
January 30th, 2012 - 20:14
Einstein I’ve just decided
January 30th, 2012 - 20:47
@HeartStrikerz 1. Yes, but I think you might be confusing the twin paradox. You do age slighty *faster* in space above our planet, because you’re further away from the gravitational force. 2. I don’t know 3. Yes and no, according to general relativity on gravitational fields you would age slower, but I doubt the difference would be in thousands of years. If you want to know more just google “time dilation”, the Wiki article explains a lot.
January 30th, 2012 - 21:00
Time maybe faster in space but out of curiosity is it just the perception of time that is different or will i “age” faster in space?, if the time truly moves faster than if i was looking at a city from space and i could see cars driving and people walking would all the movement appear to be faster than reality? like does this mean if i lived on a jupiter sized planet i could survive for thousands of years?
January 30th, 2012 - 22:00
@XxBlastGecko86xX u mad bro?
January 30th, 2012 - 22:55
cause he did u mo fucker
January 30th, 2012 - 23:33
no u fuckin dumb ass
January 30th, 2012 - 23:52
im a nigga son
January 31st, 2012 - 00:21
@260830107
yes. however, your perception of time wouldn’t change, everything would be normal. if you were in point A and I was in point B, and time was 10x slower in and around you at point B, you wouldn’t notice a change, but comparatively, I would age 10x faster, and that would be possible for you to observe.
funny thought, isn’t it!
January 31st, 2012 - 00:38
@survival12345
with ever decreasing levels of accuracy, i’d imagine.
January 31st, 2012 - 01:03
so if we were in a place where gravity is very strong we would age slower?
January 31st, 2012 - 01:41
@kfilipini This video is right. Time drags through the gravity, therefore time on the surface of Earth runs slower than time on the GPS satalite 18,000 km away from the Earth.
Yeah you’re right about that travelling near or at speed of light drastictly slows down the time. But comparative to speed of light those satalites are orbiting at much much lower rate.
Please watch this awesome documentry Stephan Hawking’s Time Travel. It should be on youTube. It will clear all your confusions.
January 31st, 2012 - 02:02
This video confused me. From what I remember the time would pass faster on earth than in the atmosphere. I say that ’cause I remember tons of exercises saying that someone traveling in the atmosphere (there is also the fact that he was traveling almost at the speed of light), when he returns he would be younger compared to those who remained on Earth, or else, in space the time goes slower compared to Earth. Well, I think it is all due to the speed of light, that I’m creating this confusion…
January 31st, 2012 - 02:41
‘
why videocamera move move shake shake on a person face
January 31st, 2012 - 03:02
@GeorgeNada1 Nice answer
January 31st, 2012 - 03:44
@Fulou i have several hand crank devices that can power the device.. i dont know how many charges these things can do before they fail, but, as far as i can tell it’ll still work as a map, given you can find a ‘landmark’ and then judge from there…
January 31st, 2012 - 04:07
@survival12345 It’ll work provided it has a battery that isn’t flat. Only problem is you may well find without the controller, the GPS will only be able to tell you where you’re not after a few days
January 31st, 2012 - 05:00
@beartechie he means the airforce guy is calling him (the “British guy”) an idiot for getting lost with a gps.
January 31st, 2012 - 05:38
Why is the british guy so rude at the end? What a jerk.
January 31st, 2012 - 06:10
my question is… say the world ‘ends’… not literally, but theres total chaos, nuke wars, solar flares, massive crop failure, what ever, etc… will my garmin still work and get me close to my destination as long as thoes satelites are up there…? does someone have to be operating the ‘control room’ on earth..?
January 31st, 2012 - 06:49
I am surprise GPS service is free.
January 31st, 2012 - 07:15
what is the usual ceiling-if we could speak about “ceilings” for them- those satellite are orbiting? Is it truly 8000km?
January 31st, 2012 - 07:31
One of the predicted effects of General relativity (theory of gravity) is indeed the effect of time slowing down in a gravitational field.
Of course time is slowed with speed as well, even if it doest approach the speed of light.