Pretty much everything you measure, you use a comparison with something else: So many marks on the measuring tape, how far the bimetal coil has unwound compared with when it’s in melting ice-water, how bright it is compared with a standard source … Gramma has it right.
Pretty much everything you measure, you use a comparison with something else: So many marks on the measuring tape, how far the bimetal coil has unwound compared with when it’s in melting ice-water, how bright it is compared with a standard source … Gramma has it right.