1. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

2. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

3. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

4. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765

5. Who invented paper ?

Answer:

Cai Lun

6. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

7. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.