Question : Who Discovered cement?
Option 1: Agasslt
Option 2: Albertus Magnus
Option 3: Joseph Aspdin
Option 4: Janseen
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Correct Answer: Joseph Aspdin
Solution : The correct answer Joseph Aspdin
Joseph Aspdin was born in England in 1779. He is credited for the invention of cement and got the patent for portland cement. He was an English businessman, inventor and stonemason. While experimenting he found that when clay and limestone are heated at very high temperature then after cooling and grinding it cement is produced. When it is mixed with water it forms a very strong and stable substance. This property of cement makes it best to be used as binding agent with concrete for strong architectures.
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Question : Who discovered Penicillin?
Option 1: Edward Jenner
Option 2: Niels Bohr
Option 3: Sir Alexander Fleming
Option 4: Heinrich Hertz
Question : Who discovered bacteria?
Option 1: Antonie Van Leeuwenhoek
Option 2: Robert Brown
Option 3: Robert Hooke
Option 4: Robert Koch
Question : Who discovered Cholera germs ?
Option 1: Robert Koch
Option 2: Rene Laennec
Option 3: Heinrich Dreser
Option 4: Armauer Hansen
Question : Who discovered Photon?
Option 1: George Crum
Option 2: Albert Einstein
Option 3: Henry Cavendish
Option 4: Humphry Davy
Question : Who discovered Potassium?
Option 1: Humphry Davy
Option 2: Alan Turing
Option 3: Bill Gates
Option 4: Tim Berners-Lee
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