Recent content by trichop

According to the Big Bang scenario, after the "explosion" , matter and radiation spreads, while the newborn space grows. My question is: This firstly emmited radiation (which I think was spread radially, right?) shouldn't somewhere in time be attracted back, due to the gravity effect? Does...

I would agree with loseyourname's past thread "It should be noted that there is no qualitative difference between a world in which solipsism is true and a world in which solipsism is not true, so there isn't any rational reason to be afraid of or haunted by the possibility." Objectively...

So for different reference frames we have different relativistic mass. Can this be true?

After a dispute on the nature of kinetic energy on a previous topic, a new question has arised. If kinetic energy is different for each reference frame, then what happens with mass, considering the mass-energy equation?

Although I haven't heart of "The laws of variance and invariance", I think now of this: If mass is invariant and energy variant, according to the energy-mass equation , isn't this contradictory?

No, the masses are not pushing each other, just moving towards each other in constant speed (the same or not). But let's make it more clear. We stand on the big mass (M). At first M is moving towards the small mass (m). So we think we stand still and m is moving against us, kinetic energy (KE) =...

I am wondering about this: 1)Firtly, is it "reasonable" considering and studing the behaviour of two masses only, as if they were the only in the whole universe? 2) Suppose we can. Let as think we have two masses. A very big one, and a second times smaller than the first.These two...