Who discovered Nitrogen?
1). Faraday
2). Heisenberg
3). Hooke
4). Rutherford
Arithmometer was invented by
1). Evangelista Torricelli
2). Charles Xavier Thomas
3). Edward Teller
4). Gustav Tauschek
Steam Engine was invented by?
1). Simon Stevin
2). George Stephenson
3). Gary Starkweather
4). Percy Spencer
Bacteria was discovered by
1). Antonie van Leeuwenhoek
2). Belarus
3). Hugo de Vries
4). Robert Brown
Soda water was invented by
1). Tivadar Puskas
2). Joseph Priestley
3). Petrache Poenaru
4). James Leonard Plimpton