Recent content by jewfro420

it is often stated that time travel is not forbidden by any law of physics. but doesn’t the second law of thermodynamics forbid it because going back in time would involve a decrease in entropy?

so basically i think that there is no relationship between mass and temperature for non main sequence stars so this can't be done. cheers for your help anyways

i was wondering if there is a relationship between mass and temperature that would allow me to calculate the surface temperature of a blue super giant of 24 solar masses? or do i simply need more information to do this