Thread: Travelling on light beams

What happens if you ride a light beam, and look back at another person travelling on another light beam, but in the opposite direction?

Would it be actually counted as going past the speed of light?
What does changing the frame of reference actually, abstractly mean? (I don't really explicitly mean the textbook definition about leaving a marker on it to gauge relative speeds in accordance to the marker's state.)




What happens if you ride a light beam, and look forward: it seems like you're moving straight in time despite gravitational pulls bending the light beam that you are on?

Could this be something about the 3rd dimension being affected by time, distorting our 3rd dimension without us noticing?






What happens if you ride on a light beam, look towards your side, and see several globular orbs flying along with you... but when you reach out to it, you do not seem to be able to catch it as your hand misses the orb every time?







PS: I'm sorry if I plagarized Einstein's thought experiments, but my daydreams kept switching over to these light experiments when I read about it. I keep having repetitive dreams about the top few questions, as well as some others that are so absurd I wouldn't put them here for fear of being flamed at.



Please forgive my pitiful ignorance about physics, because I have nothing but a meagre middle-school physics knowledge about it, but am extremely intrigued about it, so if anyone can point to me out the correct direction, I'd be perhaps, excessively happy.

I can tell you 'what happens if' you dont put a meaningful title on your thread.
What happens is that nobody clicks on it.

Originally Posted by granpa

I can tell you 'what happens if' you dont put a meaningful title on your thread.
What happens is that nobody clicks on it.

I enjoy quantum probability, and believe only equally curious people would place their bets on this one thread and click it. Yeah, I enjoy self-delusion.

Apparently the expression through language has failed here, so I shall stop coming up with crappy excuses and try to think of a better alternative thread title. Thanks!

At least you came in, that shows that even the highest odds can produce results. (:


Can anyone please offer an enlightening interpretation of those scenarios I presented? I mean, the real philosophical problem here is not the lack of popularity of the thread, or whether it implies the rules, but whether the forum serves its inherent purpose of exchanging valid information.