Astro@et🔭🔭🔭🔭🔭

Part one The special theory of relativity the principle of relativity. For over 200 years the equation of motion enunciated by Newtown were believed to describe nature correctly,and the first time that an error in these laws was discovered,the way to correct it was also discovered.Both the error and it's correction were discovered by Einstein in 1905. Newtono second law,Wich we have expressed by the equation; F=d(mv)/dt was stated with the tacit assumption that M is a constant,but we now know that this is not true,and that the mass of a body increases with velocity.In Einstein corrected formula M has the value; M=initial mass per under radical one minus velocity square over speed of light square!!!.........