“Montessori System of Pre-schooling” was developed by Maria Montessori in:
- (A) 1900
- (B) 1905
- (C) 1907
- (D) 1911
- (C) 1907
Who designed the windscreen wipers in 1902?
- (A) Edwin Armstrong
- (B) Marry Anderson
- (C) F.W. Aston
- (D) Linus Pauling
- (B) Marry Anderson
Who invented the “Helicopter”?
- (A) Igor Sikorsky
- (B) Henry Ford
- (C) Wilbur Wright
- (D) Frank Whittle
- (A) Igor Sikorsky
Who built and flew the first practical airplane (in 1903)?
- (A) Hennery Ford
- (B) Wilbur Wright & Orville Wright
- (C) Igor Sikorsky
- (D) Thomas Newcomen
- (B) Wilbur Wright & Orville Wright
Who invented the furnace for steel?
- (A) Siemens
- (B) Harrison
- (C) Browning
- (D) Kellogg
- (A) Siemens
What is the invention of Laszlo and Georg Biro?
- (A) Roller pen
- (B) Fountain pen
- (C) Ballpoint pen
- (D) Graphite pen
- (C) Ballpoint pen
Mention the inventor of Fiberglass?
- (A) Owens
- (B) Coming
- (C) Both (A & B)
- (D) Waterman
- (C) Both (A & B)
Who invented optical fiber?
- (A) Samuel Cohen
- (B) Narinder Kapany
- (C) Percy Spencer
- (D) Graham Bell
- (B) Narinder Kapany
Who invented safety match?
- (A) Joseph Lister
- (B) Roger Bacon
- (C) John Walker
- (D) Max Planck
- (C) John Walker
Who has been credited with the invention of television (in 1926)?
- (A) Philo Fainsnorth
- (B) John Logi Baird
- (C) Wilhelm Einthoven
- (D) L.H. Baekeland
- (B) John Logi Baird