Recent content by Matis

Is it possible that our current gravity theories (GTR) are wrong on the large cosmic scales and there is no dark matter and dark energy ? To be more precise, is there any possibility that our equations don't work on the large cosmic scales and we only "need" dark matter and dark energy because...

This is my perception that I've had in my mind and that was "killing" me: Metronome ticks slower only for the observer on the Earth and not for the guy in the rocket, for him his metronome ticks normally. Traveler's clock is always accumulating normal "ticks", we only see them as longer here on...

Can you correct me... When the rocket is traveling at the constant speed of 0,89c relative to the Earth, the traveler would see everything on the Earth as slowed down and observer on the Earth would see everything on the rocket as slowed down (Galilean relativity principle) ? At the same time...

hm... But metronome ticks slower only for observer on Earth and not for the guy in the rocket, for him his metronome ticks normally. So traveler's clock is accumulating normal "ticks", we only see them as longer here on Earth. And again, if regardless of the length contraction (which is...

Greetings from Croatia :) It may seem like a 100 times told story but it's not... Let us imagine that we have a rocket with length 50 m when at rest. The rocket goes on a trip and accelerates to the speed near c. Observer from Earth "measure" it's length as 48m (illustrative value),that is...