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Get Your Heads Around This..

2.8K views 53 replies 13 participants last post by  Brian.G  
#1 · (Edited by Moderator)
I think i watch too many of those documentaries on sky. Apparently the faster you go especially approaching the speed of light time actually slows down
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Even on the GPS satellites that travel at 7k mph have to have their clocks reset every so often, weird stuff...Scientists reckon if 2 babies are born at the same time on earth and one was put in a spaceship to go to the nearest star at say 85% the speed of light when the spaceship comes back the child will be 5 in the spaceship and the child on earth will be 10. I've always wondered why my clock in the RS loses time
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#2 ·
read alot about that sort of stuff in school
heres another, if you where able to move faster then the speed of light, and wanted to turn on a light switch, the light would come on before you could see yourself move, but what would happen if you changed your mind just before hitting the switch?
 
#3 ·
QUOTE (Micky 32 @ Apr 14 2009, 11:50 PM) <{POST_SNAPBACK}>I think i watch too many of those documentaries on sky. Apparently the faster you go especially approaching the speed of light time actually slows down
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Even on the GPS satellites that travel at 7k mph have to have their clocks reset every so often, weird stuff...Scientists reckon if 2 babies are born at the same time on earth and one was put in a spaceship to go to the nearest star at say 85% the speed of light when the spaceship comes back the child will be 5 in the spaceship and the child on earth will be 10. I've always wondered why my clock in the RS loses time
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wow thats heavy duty at this hour, always did wonder though if you were to move away from the telly faster than the speed of light would you see the late late backwards, thats if you could still see it as you'd be pretty far away?
 
#9 ·
QUOTE (Alan B. @ Apr 15 2009, 12:16 AM) <{POST_SNAPBACK}>you'd also be invisible
jesus that right, i need a car capable of 299792459 meters a second now that would be class
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#10 ·
QUOTE (Alan B. @ Apr 15 2009, 12:27 AM) <{POST_SNAPBACK}>and another thing, if you moved forward at the speed of light, everything would just be white,
but if you moved backwards, everything would be black.
(by my understanding of it)

but in that case would the capability not be useless on ground as you'd have no clue where you were going?
 
#15 ·
QUOTE (Alan B. @ Apr 15 2009, 01:01 AM) <{POST_SNAPBACK}>you go on your snot! thats where.

but just before you do, you will touch the ground exactly where you lept from.

How do you make that out? Your momentum would be unaffected by the bus braking
 
#20 · (Edited by Moderator)
QUOTE (Chet T16 @ Apr 15 2009, 01:07 AM) <{POST_SNAPBACK}>Yeah but your momentum would easily overcome the friction of the air

Thats it, i'm getting a feckin bus. I'll meet you J12 off the M50
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sorry, i was thinking the wrong way around, you'd still go on your snot but would NOT land in the same place.
you'd move towards the front.

i'm certain of it.

now if the bus didnt speed up or slow down, you'd land in the same place.
 
#21 ·
QUOTE (Alan B. @ Apr 15 2009, 01:12 AM) <{POST_SNAPBACK}>sorry, i was thinking the wrong way around, you'd still go on your snot but would NOT land in the same place.
you'd move towards the front.

i'm certain of it.

Yeah, me too. You're right.

Worst debate ever
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#22 · (Edited by Moderator)
QUOTE (Alan B. @ Apr 15 2009, 12:10 AM) <{POST_SNAPBACK}>if you moved away from anything faster then the speed of light, you wouldnt see it at all because the light from it would never reach you.

Not so sure about this. Scientist reckon if someone was stationary and if someone was say was moving half the speed of light and that someone switched on a spotlight the light in relation to the two people would move the same. IE the light would zoom past the person moving half the speed of light the same speed as the person that is staitonary. Something to do with the speed of light being constant. Now my head hurts.
 
#25 ·
QUOTE (Alan B. @ Apr 15 2009, 01:21 AM) <{POST_SNAPBACK}>but if your only moving at half the speed of light, the light is still moving faster then you so can reach you. (overtake if you will)

but if YOU are moving faster then the light, how can the light "catch up" to you for you to be able to see it?
The laws of physics don't allow for anything to travel faster than the speed of light.