4 ms·
Naah. It's defined in terms of the second, nowadays, but it's based on the circumference of the Earth: The meter was originally defined as one ten-millionth of
by CRConrad 5y ago
Naah. It's defined in terms of the second, nowadays, but it's based on the circumference of the Earth: The meter was originally defined as one ten-millionth of the distance between the equator and the poles.