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Originally Posted by Mindz
Ahhh. Like if you're pushing your arm forward as you shoot a bullet. The bullet goes faster from the inertia acceleration. something along those lines, right?
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^^Somebody email mythbusters.
2+2=4 whether your talking about 2 objects or the theoretical quantity of 2. End of story.
As for the car traveling the speed of light the professor is correct, but it is all relative.
Example A: You are in the car traveling at (X) speed, turn on the headlights, and from your perspective the light is traveling exactly the speed of light no matter what speed you are going.
Example B: You are traveling toward earth at (X) speed and turn on the headlights. From earth the light would appear to be traveling at the speed of light + your speed (blue-shift). The opposite if you were traveling away from earth. From earth we would observe the speed of light minus your speed red-shift. This is how we can tell if stars and planets are traveling toward or away from us and at what speed.
I'm a little bored at work right now.