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Who invented the first modern bra ?

Sir Timothy John
Alexander Graham Bell
James Rineose
Caresse Crosby

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Caresse Crosby invented the first modern bra at the age of just 19. She was the first recipient of a patent on bra. Born on April 20, 1891, she was an american person of the arts, poet, publisher, and peace activist.

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Who Invented the First Adhesive Tape ?

Richard GurleyDrew
Alexander Graham Bell
James Rineose
Caresse Crosby

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Born on June22, 1899 at St. Paul, Minnesota, he invented the first masking tape in 1923.

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Who invented the television ?

Richard GurleyDrew
Leon Battista Alberti
John Logie Baird
Caresse Crosby

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He was a Scottish engineer and inventor of the world's first practical, publicly demonstrated television system, and also the world's first fully electronic colour television tube.  John Logie Baird was born on August 13th, 1888, in Helensburgh, Dunbarton, Scotland and died on June 14th, 1946, in Bexhill-on-Sea, Sussex, England.

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Who Invented Bakelite Plastic ?

Richard GurleyDrew
Leon Battista Alberti
John Logie Baird
Leo Hendrik Baekeland

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Bakelite or polyoxybenzylmethylenglycolanhydride, is an early industrial thermoset plastic that does not change its shape after being mixed and heated. It is formed from an elimination reaction of phenol with formaldehyde, usually with a wood flour filler.
It was developed in 1907 and patented in same year by the Belgian-born American chemist Leo Hendrik Baekeland.

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Who Invented Modern Frequency Modulation FM Radio ?

Peter Durand
Percy Shaw
Edwin H. Armstrong
Leo Hendrik Baekeland

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Edwin H. Armstrong is widely regarded as one of the foremost contributors to the field of radio-electronics. He was an American electrical engineer and inventor who invented modern frequency modulation (FM) radio. He was inducted into the National Inventors Hall of Fame in 1980.

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Who Invented Contact Lens ?

Joel Houghton
Ruth Graves Wakefield
Adolf Gaston Eugen Fick
John Stith Pemberton

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The German ophthalmologist Adolf Gaston Eugen Fick invented the contact lens. Born in 1852, A.G.E. Fick first performed experiments on rabbit eyes. After that he gave a try to himself and close ones. Then at last he tried it on six of his patients. The results were good. His idea was advanced independently by several innovators in the years that followed.

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Who Invented Aqua-lung ?

Joel Houghton
Ruth Graves Wakefield
Adolf Gaston Eugen Fick
Jacques Cousteau

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Jacques Cousteau and Emile Gagnan both has the credit of Inventing Aqua-Lung. Aqua-Lung was the original name of regulator or demand valve. It is open-circuit free-swimming underwater breathing set that helps swimmers to breathe in water. It was invented in Paris during the 1942-1943 winter by these two Frenchmen.

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Who Invented Electric Street Car ?

Bartolomeo Cristofori di Francesco
Arthur Wynne
Thomas Davenport
Jacques Cousteau

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Born on 9 July 1802 at Williamstown, Vermont, Thomas Davenport was an American Vermont blacksmith who constructed the first American DC electric motor in 1834 and built an electric car in 1835. Based on the concept of battery-powered electric motor, he operated a small model car on a short section of track which provided the way for the later electrification of streetcars.

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Who Invented Escalator ?

Charles Richard Drew
Henry W. Seely
Jesse Wilford Reno
Philip B. Downing

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The credit of inventing the first working Escalator goes to Jesse Wilford Reno. He invented it in 1891 and got his patent on March 15, 1892. The Elevator was made in Coney Island, New York City. His invention was referred to as the "inclined elevator." Before him, an another inventor named Nathan Ames patented an escalator machine in March 9, 1859, termed "revolving stairs" but was never built.

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Who Invented Elevator Safety Brake ?

Alfred Bernhard Nobel
Elisha Graves Otis
Percy LeBaron Spencer
Garrett Augustus Morgan

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Elisha Graves Otis Invented a Elevator safety Device(Elevator Brake) which can prevent falling in case a supporting cable breaks. His invention increased the faith in public to use elevators. He worked on this device while living in Yonkers, New York in 1852, and had a finished product in 1854. In 1853, Mr. Otis demonstrated a freight elevator equipped with a safety device.

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