Other units are based on these basic units but have a prefix in front. The prefix tells you how much bigger or smaller the unit is: ...

1. X is the derived unit used to measure solid angles. 1 X is roughly 3,283 square degrees. More generally, it’s the amount of solid angle a unit area on a unit sphere’s surface subtends at the sphere ...

AN interesting note on the metre, kilogram, second and ‘another unit’ system of units by Prof. G. Giorgi has been published by the International Electrotechnical Commission (I.E.C.) the central office ...

Revamped definitions of scientific units are on their way. In the biggest overhaul of the international system of units (SI) since its inception in 1960, a committee is set to redefine four basic ...