... the speed and distance it goes till it reaches another person eyes?
2007-06-13 07:13:05 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
The speed not the distance. But yes.
2007-06-13 07:16:13 · answer #1 · answered by TheEconomist 4 · 1⤊ 0⤋
Hi. First answer is correct. There is a fundamental speed at which any object without mass must travel. Light made of massless photons (as is most radiation) therefore HAS to travel at this speed in the medium through which it passes. In the case of your flashlight, it takes a few moments for the filament to heat up and produce light, so if you could accurately measure the time from electrical contact until your friend 'sees' the light it would show a longer time. But never a shorter time. Make any sense?
2007-06-13 14:32:48 · answer #2 · answered by Cirric 7 · 1⤊ 0⤋
Seeing as though nothing can travel faster than light, speed and distance are the same thing that's why we say light year. All light travels at the same speed, your flashlight might not be the best example but the light leaving it is moving at the same speed as the light comming from the sun. 186,000miles per second/ 669,600,000 miles per hour.
2007-06-13 14:37:39 · answer #3 · answered by Anonymous · 0⤊ 0⤋
damn skippy. that's exactly what it means. it's pretty fast.
3 x 10^8 meters per second to be exact. which is technically the speed of light in a vacuum, which you're not in, but the difference is...um...negligible for our purposes...;)
2007-06-13 14:34:09 · answer #4 · answered by eva-bella 2 · 0⤊ 0⤋