My car can't even observe speed exactly, it's off by a few km/h. It doesn't matter because the cops measuring speed expect the error and subtract the margin for me.
For "eating less to lose weight" you're looking at megajoules/week change. Theres plenty of room for impreciseness here.
For "eating less to lose weight" you're looking at megajoules/week change. Theres plenty of room for impreciseness here.