Anonymous ID: 0e4a47 Dec. 9, 2018, 8:31 p.m. No.4235034   🗄️.is 🔗kun   >>5070

>>4235026

Special relativity is based on two postulates which are contradictory in classical mechanics:

 

The laws of physics are the same for all observers in uniform motion relative to one another (principle of relativity).

The speed of light in a vacuum is the same for all observers, regardless of their relative motion or of the motion of the light source.