LORD KELVIN

1. He was born on 26 june 1824 in United Kingdom(UK) 2. Lord Kelvin of Scotland studied at Cambridge University, was a champion rower and later became a professor of natural philosophy at the University of Glasgow. 3. Lord Kelvin invented the Kelvin scale in 1848 used on thermometers. 4. The Kelvin scale measures theContinue reading “LORD KELVIN”

HEAT

Key words – Meanings and explanation 1) Temperature : The degree of hotness or coldness 2) Heat : Heat is a flow of energy, that flows from a body at higher temperature to a body at lower temperature 3) Calorie : Calorie is the CGS unit of heat. The amount of heat required to raiseContinue reading “HEAT”

Advantages of SI Units

1) All the units are well defined without any ambiguity 2) All the units are easily reproducible 3) The base and supplementry units covers all branches of science and engineering 4) Almost all countries in the world have adopted SI system 5) There are special names to some difficult and familiar derived units For anyContinue reading “Advantages of SI Units”

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