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Who Invented the Band Aid Adhesive Bandage ?

Mike Aurthor
Earle Dickson
James Rineose
Laszlo Jozsef Biro

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Earle Dickson is credited for inventing the Band-Aid adhesive bandages. He invented it in the year 1920.

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Who Invented The World Wide Web ?

Sir Timothy John
Earle Dickson
James Rineose
Laszlo Jozsef Biro

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Sir Timothy John "Tim" Berners-Lee also known as "TimBL", is a British computer scientist, MIT professor and the inventor of the World Wide Web. On 25 December 1990, with the help of Robert Cailliau and a young student at CERN, he implemented the first successful communication between a Hypertext Transfer Protocol (HTTP) client and server via the Internet.

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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 Windshield Wiper Cleaner ?

Richard GurleyDrew
Mary Anderson
James Rineose
Caresse Crosby

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Mary Anderson had her first patent for an automatic car window cleaning device which was controlled inside the car in 1903.

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Who Invented Mechanical Dishwasher ?

Joel Houghton
Percy Shaw
Edwin H. Armstrong
John Stith Pemberton

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The first patent of mechanical dishwashing goes to Joel Houghton in 1850. This device was a  hand-powered which was both slow and unreliable and not become successful.
 It was a wooden machine with a hand-turned wheel that splashed water on dishes, it was hardly a workable machine. Later in 1865 L.A. Alexander got another patent for mechanical dishwashing. This featured a hand-cranked rack system and similar to the previous one, this also goes down.

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Who Invented Chocolate Chip Cookies ?

Joel Houghton
Ruth Graves Wakefield
Edwin H. Armstrong
John Stith Pemberton

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The credit of Inventing Chocolate chip cookies goes to Ruth Graves Wakefield of East Walpole, MA,USA. She was born on Jun. 17, 1903 and gave this great taste to the World.

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Who Invented Piano ?

Bartolomeo Cristofori di Francesco
Ruth Graves Wakefield
Adolf Gaston Eugen Fick
Jacques Cousteau

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Bartolomeo Cristofori di Francesco regarded as the inventor of the piano. He later made several technical alterations to improve the instrument's acoustics that have remained essential components of its construction.Cristofori was born in Padua in the Republic of Venice, Italy on May 4, 1655.

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Who Invented Street Letter Drop Mailbox ?

Bartolomeo Cristofori di Francesco
Arthur Wynne
Thomas Davenport
Philip B. Downing

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he credit of inventing the protective public mailbox(letter-box) goes to the Philip B. Downing, who was from Boston, Massachusetts, had been awarded a U.S. patent(No. 462,093) for animprovement to the street letter (mail) box on Oct. 27, 1891.  This improvement in the coveringand opening of outdoor mailboxes protected mail from both intruders andweather. It is same as we are using now a days.

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Who Invented Dynamite Explosive Material?

Alfred Bernhard Nobel
Levi Strauss
Percy LeBaron Spencer
Garrett Augustus Morgan

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Alfred Bernhard Nobel has the credit of inventing dynamite whose name is derived from Greek roots that literally mean "connected with power." He was a Swedish engineer, innovator and chemist. Dynamite is an explosive material based on nitroglycerin. Nobel found that when nitroglycerin was incorporated in an absorbent inert substance like kieselguhr it became safer and more convenient to handle, and this mixture he patented(U.S. patent number 78,317) in 1867 as 'dynamite'. To be able to detonate the dynamite rods, Nobel also improved his detonator (blasting cap) so that it could be ignited by lighting a fuse. In 1875, Nobel invented blasting gelatine in Paris and patented it in 1876. In 1887, he was granted a French patent for blasting powder "ballistite"

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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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