Why do scientists around the world use the metric system?

Question

aliqanber · Answer

Because the meter, kg and second have extremely precise definitions. Unlike the foot.

aliqanber · Answer

The metre is defined as the distance traveled by light in a specific fraction 1/299 792 458 of a second.
The kilogram is defined as being equal to the mass of the International Prototype of the Kilogram (IPK, also known as "La Grande K" or "Big K")
The second is quantitatively defined in terms of a certain number of periods – about 9 billion – of a certain frequency of radiation from the caesium atom.
The foot is defined as equivalent to 0.3048 meters exactly.
Source: wikipedia

Imperical units, being very imprecise, were changed in definition by comparing them to the precise metric units.

dboome · Answer

This image makes a valid argument

irishboy123 · Answer

because they agreed to do so.  the americans still, i think, use the old imperial measures, adjusted to US imperial.