Lightspeed?

Question

If i drove at the speed of light and then switched on my headlights, would i see them?

Or, would i see them behind me?

Answer 1

You cannot travel at the speed of light. Sorry, but you can't - so any answer to that question would be completely hypothetical and wrong.

If you travelled at 99.9% the speed of light, it's natural to assume that you'd see the light from your headlamps travelling only slightly in front of you.

But this is one of the cornerstones of relativity - light travels at a constant speed, always and it has nothing to do with how fast the source is or isn't moving.

So, no, the light from your headlamps would be racing away from you every bit as fast as it does when you switch on a light here on Earth.

Answer 2

yes

Answer 3

would you see them?...

practicalities aside,

for stationary things in front of you, you only see them at the same time you hit whatever the light is reflecting off (since the object is 'travelling toward you' at the same speed as the light), which is far too late.  Also, the space bunny in your path you hit would also see the headlights, but only at the same instant your car impacts on it's poor little face (since you're going the same speed as the light).  that obviously is not enough time for it to get out of the way. Collisions at that speed would most likely be fatal to both of you!

behind you....  i would expect not if the object is stationary since the doppler shifing would take all the energy out of it, right?  that probably applies to things in front of you too, it'd be doppler shifted to big energies.  

so maybe you wouldnt see anyhting because the light would be shifted out of your visible spectrum :P

Answer 4

no but you will be white!!! Traveling in your turnend on lights haha

Answer 5

hi

if you drove at the speed of light.your bodys molecules will vibrate so much that you will eventually disintegrate.

so you wont be there to see your cars headlights

bye :)

Answer 6

i don't think you eye can function at that speed.

Answer 7

You would see the light normally. Speed of light remains contant, no matter what speed you're travelling at.

Answer 8

i very much doubt it because your car would be travelling as you said the speed of light and if somthing was travelling that fast with lights on, well yo wouldn't see the headlights persay, you'd only see a fast blur of light

Answer 9

This question gets asked several times a day. Try to be more original.

Travel at the speed of light is impossible, so the question is meaningless.

.

Answer 10

You can not travel at that speed since your weight would be infinite. nothing can travel faster

Answer 11

Everything would seem entirely normal to you.  In fact, you probably are "driving" at something close to the speed of light, when you think about the motion of our solar system which is out on one of the spiral arms of the Milky Way galaxy, which is rotating, and about the motion of our galaxy, which has been receding from other galaxies at very high speed since the big bang.  But, everything seems normal, doesn't it?  You need to read up on Einstein's theories of relativity - start with the "special" theory, which will answer your question.