3 ms·
Ok so let's say two humans pass each other by somewhere in the universe, each in their own spaceship, in opposite directions. They both travel with half the spe
by misja111 4y ago
Ok so let's say two humans pass each other by somewhere in the universe, each in their own spaceship, in opposite directions. They both travel with half the speed of light, so relative to each other with full light speed.
Which one is the one aging slower?
- ubercore 4y agoThey won't see each other moving at the speed of light though. This example is covered in any class on relativity. Having an approach velocity between two objects at the speed of light or greater is different than accelerating a frame of reference to c. When an approach velocity is c, nothing is actually _moving_ at c.
- Tyr42 4y agoIn particular, it's acceleration you need to account for when talking about time dilation, not speed. And acceleration is less symmetric.
- ryandvm 4y agoLove the Fermilab series of videos. Here's the one that covers the Twin Paradox: https://www.youtube.com/watch?v=GgvajuvSpF4 https://www.youtube.com/watch?v=GgvajuvSpF4