Abrasive (Invention)
Invention of Abrasive Abrasives as a class are simply hard substances used to rub-nard material to form softer substances. I…
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View allABO Blood Groups (Discovery)
Discovery of ABO Blood Groups The Austrian - born American Biologist Karl Landsteiner in 1901 was the first to classify hum…
bySreejith Hrishikesan
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Abacus (Invention)
Invention of Abacus A calculating device consisting of balls strung on wires or rods set in a frame. It is probably of Babyl…
bySreejith Hrishikesan
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Abaca (Discovery)
Discovery of Abaca It is a plant grown in Borneo, Philippines and Sumatra for its fibre. The plant grows about 6 metres high…
bySreejith Hrishikesan
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Spectrometer Experiment Viva Questions
Spectrometer Experiment Viva Questions with Answers (i) Why is a spectrometer so called? Ans: It is an instrument to study t…
bySreejith Hrishikesan
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Tangent Galvanometer Experiment Viva Questions
Tangent Galvanometer Experiment Viva Questions (1) What is meant by a tangent galvanometer? A tangent galvanometer is a mo…
bySreejith Hrishikesan
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Jolly's Bulb Apparatus Experiment Viva Questions
The Jolly's Bulb Apparatus Experiment Viva Questions 1. What is the name of the instrument used for measuring atmospheri…
bySreejith Hrishikesan
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