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Q:

Who invented waterproof fabrics ?

A) James Dewar B) Charles Goodyear
C) Mary Moore D) Charles Macintosh

Answer:   D) Charles Macintosh



Explanation:

Charles Macintosh (29 December 1766 – 25 July 1843) was a Scottish chemist and inventor of waterproof fabrics.He devoted all his spare time to science, particularly chemistry, and before he was twenty resigned his clerkship to take up the manufacture of chemicals. In this he was highly successful, inventing various new processes. His experiments with one of the by-products of tar, naphtha, led to his invention of waterproof fabrics.

Subject: Inventions
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Q:

Who discovered Electron?

A) Enrico Fermi B) Robert Noyce
C) J.J.Thomson D) James Dyson
 
Answer & Explanation Answer: C) J.J.Thomson

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Q:

Who discovered Photon?

A) George Crum B) Albert Einstein
C) Henry Cavendish D) Humphry Davy
 
Answer & Explanation Answer: B) Albert Einstein

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Q:

Who discovered Uranus?

A) Sir Isaac Newton B) William Henry Fox Talbot
C) William Herschel D) Nicolaus Copernicus
 
Answer & Explanation Answer: C) William Herschel

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Q:

Who invented Space Pen?

A) Paul C. Fisher B) Rudolf Diesel
C) Wright Brothers D) Alexander Fleming
 
Answer & Explanation Answer: A) Paul C. Fisher

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Q:

General anaesthetic was invented by?

A) Alfred P. Southwick B) Isaac Singer
C) Murasaki Shikibu D) Hanaoka Seishū
 
Answer & Explanation Answer: D) Hanaoka Seishū

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Q:

Who invented E­Mail?

A) Tim Berners­-Lee B) James Gosling
C) Vinton Cerf D) VA Shiva Ayyadurai
 
Answer & Explanation Answer: D) VA Shiva Ayyadurai

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Q:

Dynamite was invented by?

A) Jean-Antoine Nollet B) Alfred Nobel
C) Joseph Nicephore Niepce D) Ted Nelson
 
Answer & Explanation Answer: B) Alfred Nobel

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Q:

Who Invented Ceiling fan?

A) Lloyd Groff Copeman B) Bartolomeo Cristofori
C) Leonardo da Vinci D) Philip Diehl
 
Answer & Explanation Answer: D) Philip Diehl

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