Quote Originally Posted by Tins06 View Post
I everything doubled our point of measurment would not stay the same would they. If a Mili metre is the space between these two lines /.. / double it /......./....Its not a milimetre anymore. So we would know.
We would double at the same time. The sapce would appear the same and everything you would try to measure would be twice as big. Therefore the unit remains the same or equivalent, as I said algebra.
x=y
2x=2y