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I think I've posted this before, and someone inevitably posted the reason, but
Why is it a kilogram? 1 litre should = 1 gram surely. Arbitrarily a thousand times smaller.
yoshy-
I think the original definition of a gramme was that it was a cubic centimetre of water at melting point, at sea level. That makes a cubic metre a metric tonne.
Except it’s not, it’s a bit less. Also water is densest at 4 degrees but I don’t know if the units were re-defined to account for that or not and cba to utfs.
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1 litre = 1000 cubic centimetres,
thus,
1000 cubic centimetres weighs 1000 grams.
AlexD
mespilus
I like that metric is based around the weight of water, in that a litre of water weighs a kilogram. As you can apply that to various liquids with more or less accuracy, it makes judging amounts in recipes that much easier. For instance if the recipe calls for 225gm of apple juice, you could get away with using scales if it’s easier.