When I was a research student, a group of us were chatting over tea and asked a fellow student, who was from India, studying electron microscopy, working in Angstroms (there's another one) every day: "How deep is the Ganges at your city?". Without a microsecond pause he said "Not so deep, about two elephants". Very practical in certain situations.
A few years later I went to the store in a big national lab to get 20 metres of coaxial cable. After a pause for head-scrunching conversion, the storekeeper said, "Ah. You want about 60 nanoseconds then?". His basic unit was that light travels about a foot a nanosecond, and he usually supplied them for high-frequency delay lines.
The sniff, smidgeon and gnat are well known in experimental science, but not so well known as the smallest useful measure, the "square root of a gnat's c*ck".
A few years later I went to the store in a big national lab to get 20 metres of coaxial cable. After a pause for head-scrunching conversion, the storekeeper said, "Ah. You want about 60 nanoseconds then?". His basic unit was that light travels about a foot a nanosecond, and he usually supplied them for high-frequency delay lines.
The sniff, smidgeon and gnat are well known in experimental science, but not so well known as the smallest useful measure, the "square root of a gnat's c*ck".