Who invented Gunpowder?
- (A) Hahn Otto
- (B) Roger Bacon
- (C) Carl Benz
- (D) James Watt
- (B) Roger Bacon
The nature of infectious diseases and of the control by vaccination was first determined by:
- (A) Thomas Huxley
- (B) Louis Pasteur
- (C) James Maxwell
- (D) Alexander Fleming
- (B) Louis Pasteur
What was the invention of A.H. Taylor and Leo C. Young?
- (A) Laser
- (B) Lift
- (C) Radar
- (D) X-Rays
- (C) Radar
Who invented ‘Logarithm tables’?
- (A) John Napier
- (B) John Doe
- (C) John Harrison
- (D) John Douglas
- (A) John Napier
The scientist credited with the discovery of noble gases is:
- (A) Madame
- (B) Cavendish
- (C) Marie Curie
- (D) John Dalton
- (B) Cavendish
What was the invention of Browning?
- (A) Pistol
- (B) Gun
- (C) Tank
- (D) Missile
- (B) Gun
Who discovered ‘Malaria parasite’?
- (A) Ronald Ross
- (B) J.C. Bose
- (C) Paul Berg
- (D) Louis Pasture
- (A) Ronald Ross
The “X-rays” was discovered (in 1895) by:
- (A) Wilhelm Roentgen
- (B) Ran Levy
- (C) Marie Curie
- (D) A.L. Breguet
- (A) Wilhelm Roentgen
The wonder antibiotic drug “Penicillin” was discovered by Alexander Fleming in:
- (A) 1928
- (B) 1938
- (C) 1945
- (D) 1950
- (A) 1928
In 1855, “Safety Match” was invented by:
- (A) Davy
- (B) J.E. Lundstrom
- (C) Gillette
- (D) John Salk
- (B) J.E. Lundstrom