1
New Theories / Re: How do we measure the energy of a photon?
« Last post by paul cotter on Today at 18:33:56 »All sources were either xtal controlled directly or indirectly by pll. Of course the frequencies were measured, Alan, but I did not measure energies directly like BC and yourself. I still have the bk precision frequency counter from that era but it has become a bit erratic in operation despite my best efforts to extend it's useful life.