How fast is a jiffy?
Fast forward about a century and a half later and famed Physical Chemist Gilbert Newton Lewis, who incidentally came up with the word ‘photon’, suggested a ‘jiffy’ should be officially defined as the time it takes for light to travel one centimeter in a vacuum (about 33.3564 picoseconds).May 3, 2012

how long will we wait.can we see it this year