1. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.

2. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

3. Who invented Barometer ?

Answer: Evangelista Torricelli of Italy in 1644

4. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

5. Who invented Atomic Bomb ?

Answer: J. Robert Oppenheimer of U.S.A. in 1945

6. Who invented Safety razor ?

Answer: King Camp Gillette of U.S.A. in 1903

7. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland