I was wondering if something moving fast (closer to the speed of light) or this also loses mass. When the astronauts go into space and come back, their clocks don’t exactly match ours, and has anything they taken with them increased or decreased in mass, or has this nothing to do with it? If this is the case, I do have a nice theory, but I will explain it later.
Asker: Justin, 20 years old
Answer
On the contrary, something that moves increases in mass. This is only as long as the mass moves and is a result of the equivalence between mass and energy. Also for the astronauts there is only a time effect as long as they are moving. Once they are back on Earth, their second will be equal to ours again.
Answered by
Prof Walter Lauriks
Physics Acoustics
Catholic University of Leuven
Old Market 13 3000 Leuven
https://www.kuleuven.be/
Old Market 13 3000 Leuven
https://www.kuleuven.be/
.