Article Detail Who invented Radar ? Answer: Sir Robert Watson-Watt Similar Questions : 1. Who invented Helicopter ? Answer: Igor Sikorsky 2. Who invented Neutron bomb ? Answer: Samuel T. Cohen 3. Who invented Radiocarbon ? Answer: Willard Libby 4. Who invented HIV ? Answer: Dr Robert Gallo invented HIV test 5. Who invented Penicillin ? Answer: Alexander Fleming of Britain in 1928. 6. Who invented Air Conditioning ? Answer: Willis Carrier in 1902 7. Who invented Laser ? Answer: Charles H. Townes Read more from - Important Inventions