Al-beroni the great scientist

Al-beroni was not just a big scientist but he was a big tourist he visited many countries of the world. He was having knowledge about maths, doctorate, horoscope. He was alos having the knowledge that the speed of light is big than the sound. He also livid in india and learned "sanscrit" from Hindu priests in his 75 years life he written 150 books, Books was on different topics like geography, Doctorate, Math, Chemistry, Biology. The biggest theory of Al-beroni was that laws of physics which are present into our earth are also acted on other planets. and now a days these laws called galilean Invariance physics laws.