1. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

2. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

3. Who invented Vitamin D ?

Answer:

Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922

4. Who invented Transformer ?

Answer:

Ottó Bláthy

5. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

6. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

7. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen