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Discoveries and inventions Practice Questions & Answers

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Who Invented the 3-D printer?

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Who Invented the 3-D printer?
1). Nick Holonyak
2). Elias Howe
3). Chuck Hull
4). Christiaan Huygens

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Who discovered X-Ray?

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Who discovered X-Ray?
1). Wilhelm Rontgen
2). William Lee
3). X Rollswick
4). I Thompson

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Who invented JavaScript the programming language?

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Who invented JavaScript the programming language?
1). Brendan Eich
2). Willem Einthoven
3). George Eastman
4). Emil Erlenmeyer

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Who invented Aerosol can?

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Who invented Aerosol can?
1). Erik Rotheim
2). Erik Mathew
3). Erik Tim
4). Eric Flayer

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Revolving Door was invented by ________.

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Revolving Door was invented by ________.
1). Lucien Vidi
2). John Venn
3). Theophilus Van Kannel
4). Lewis Urry