Monday 23 September 2013

Johann Franz Encke

Johann Franz Encke was a German astronomer.  He was born on September 23, 1791, he worked on the calculation of the periods of comets and asteroids, measured the distance from the earth to the sun, and made observations of the planet Saturn. He died on August 26, 1865. 
photo:www.nndb.com
Photo : Ananthu manoharan
Place: Kollam

Special Theory of Relative was proposed in

Ans:1905