OK, So I asked Stephen Hawking this and never gotta reply so it's does anyone know?..
04 October 2004, 04:05 PM
#31
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Originally Posted by suprabeast
does the speed of light vary depending upon what medium it is travelling through??
04 October 2004, 04:05 PM
#32
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Because we can use mathematics for theorical equation like the posed question - hence theory of relativity.
Or stop smoking dope, and get out more - so I am told by my colleagues
Or stop smoking dope, and get out more - so I am told by my colleagues
04 October 2004, 04:05 PM
#33
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If it were possible to accelerate yourself in your car to the speed of light wither you can see your headlights may be the least of your worries, as anything with infinite mass would have infinite gravitational force so you would become the centre of the universe! or at least attract it to you! Interesting thought!
Andy
Andy
Last edited by 106rallye; 04 October 2004 at 04:09 PM.
04 October 2004, 04:07 PM
#34
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Originally Posted by 106rallye
If it were possible to accelerate yourself in your car to the speed of light wether you can see your headlights may be the least of your worries, as anything with infinate mass would have infinate gravitational force so you would become the centre of the universe! interesting thought!
Andy
Andy
04 October 2004, 04:09 PM
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04 October 2004, 04:09 PM
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not sure if this has already been said, but in your frame of reference, relative to you the headlights operate as normal.
i hope my university physics knowledge hasn't fallen out of my head, but i think it was einstiens something or another scenario that addressed this paradox (a man shaving, travelling at the speed of light holding a mirror)...
i hope my university physics knowledge hasn't fallen out of my head, but i think it was einstiens something or another scenario that addressed this paradox (a man shaving, travelling at the speed of light holding a mirror)...
04 October 2004, 04:11 PM
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Originally Posted by akshay67
not sure if this has already been said, but in your frame of reference, relative to you the headlights operate as normal.
04 October 2004, 04:12 PM
#39
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Originally Posted by akshay67
not sure if this has already been said, but in your frame of reference, relative to you the headlights operate as normal.
i hope my university physics knowledge hasn't fallen out of my head, but i think it was einstiens something or another scenario that addressed this paradox (a man shaving, travelling at the speed of light holding a mirror)...
i hope my university physics knowledge hasn't fallen out of my head, but i think it was einstiens something or another scenario that addressed this paradox (a man shaving, travelling at the speed of light holding a mirror)...
If you can travel at the speed of light you would think that shaving without a mirror would be a breeze
04 October 2004, 04:14 PM
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Agree with telboy - there is nothing to distribute light against or reflect apart from the glass of the bulb and lamp holder.
04 October 2004, 04:15 PM
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Originally Posted by lightning101
.
04 October 2004, 04:16 PM
#43
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Theres a small light on your dash with a bulb icon.
Also if you use the Bright button would that accelerate light particles.
Also if you use the Bright button would that accelerate light particles.
04 October 2004, 04:18 PM
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The fact that 2 above posts came in at exacly the same time, yet mine appeared first proves there are faults toevery theory, time being constant is one of them.
04 October 2004, 04:19 PM
#47
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Originally Posted by lightning101
Theres a small light on your dash with a bulb icon.
Also if you use the Bright button would that accelerate light particles.
Also if you use the Bright button would that accelerate light particles.
Would you be able to see the light on the dashboard?
04 October 2004, 04:19 PM
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Originally Posted by lightning101
Agree with telboy - there is nothing to distribute light against or reflect apart from the glass of the bulb and lamp holder.
in your frame of reference, i.e. in the car, you will still measure the headlight speed as c.
to an external observer (i.e. outside your frame of reference), will also measure the speed of headlights as c.
this is because length and time are not fixed concepts: the lengh of the car will be shorter and the passage of time on board the car will be slower...
04 October 2004, 04:19 PM
#50
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Originally Posted by lightning101
The fact that 2 above posts came in at exacly the same time, yet mine appeared first proves there are faults toevery theory, time being constant is one of them.
04 October 2004, 04:21 PM
#51
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Originally Posted by akshay67
where are you getting this knowledge from??
in your frame of reference, i.e. in the car, you will still measure the headlight speed as c.
to an external observer (i.e. outside your frame of reference), will also measure the speed of headlights as c.
this is because length and time are not fixed concepts: the lengh of the car will be shorter and the passage of time on board the car will be slower...
in your frame of reference, i.e. in the car, you will still measure the headlight speed as c.
to an external observer (i.e. outside your frame of reference), will also measure the speed of headlights as c.
this is because length and time are not fixed concepts: the lengh of the car will be shorter and the passage of time on board the car will be slower...
erm - I think he is referring to the fact that he is more than likely travelling through space, so there would be nothing in front of him to light up
(or at least, there wouldn't be for very long)
04 October 2004, 04:21 PM
#52
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Yes you would see everything in the car as they are travelling at a constant speed - including you.
Also the car is full of reflective surfaces.
What you would need is a couple of sheets of paper in front of your lights to solve the problem
Also the car is full of reflective surfaces.
What you would need is a couple of sheets of paper in front of your lights to solve the problem
04 October 2004, 04:22 PM
#53
Einstein did have a bit of a caveat for the mass problems. (Relativity)
Let's say they weren't an issue. (which i did intimate with my comment (it's theoretical).
Let's say they weren't an issue. (which i did intimate with my comment (it's theoretical).
04 October 2004, 04:23 PM
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Originally Posted by fast bloke
erm - I think he is referring to the fact that he is more than likely travelling through space, so there would be nothing in front of him to light up
(or at least, there wouldn't be for very long)
(or at least, there wouldn't be for very long)
.
04 October 2004, 04:25 PM
#55
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Originally Posted by fast bloke
erm - I think he is referring to the fact that he is more than likely travelling through space, so there would be nothing in front of him to light up
(or at least, there wouldn't be for very long)
(or at least, there wouldn't be for very long)
;-)
04 October 2004, 04:27 PM
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Originally Posted by papascooby
Einstein did have a bit of a caveat for the mass problems. (Relativity)
Let's say they weren't an issue. (which i did intimate with my comment (it's theoretical).
Let's say they weren't an issue. (which i did intimate with my comment (it's theoretical).
