At 20 seconds into the show a physicist says and writes 10^-12 ( seconds ) on a chalk board as 0.0000000000001, with 12 zeros after the decimal then a 1. This is actually ten to the minus 13. You can track that zeros 7 and 8 ( after the decimal point ) are not completely connected, then 3 more zeros follow ( 11 zeros ) then the shot quickly ends with another zero then the final 1 ( 12 zeros ) which is actually 10^-13 .