mph X 4.7

Our initiative to get the world’s speedometers converted to angstroms per nanosecond is moving along at a snail’s pace. Actually, expressing a snail’s pace in Å/ns yields a number smaller than one, which is inelegant. So, what’s shorter that an angstrom? Well, the Planck length. It would take 6.25E+24 of those little buggers to add up to one angstrom. Wikipedia says that if a 0.1 mm dot was magnified to the size of the observable universe, one Planck length would be about 0.1 mm. So, quite small. Does thinking about that make you slightly queasy? I know it does me.