50th  Anniversary of the Earth Day ( on 22nd April 2020 )  Dr Surjit Singh Bhatti, Retired Professor & Head, Department of Physics and Dean, Faculty of Sciences, Guru Nanak Dev University, Amritsar (India). Earth Day is celebrated around the world (on April 22) every year to support efforts for environmental protection. First celebrated in…

      A Tribute on his Birthday     to An Eminent Sikh Scientist Dr Kartar Singh Bawa (1886-1960)                      By         Dr Surjit Singh Bhatti Dr Bawa Kartar Singh, a direct descendent of Guru Amar Das, the Third Sikh  Guru, was a great scientist, born on  the 17th of April 1886 at Amritsar.  His father Bawa Jivan…