Blue Hg lamp, mirrored Cs photomultiplier chilled by melting ice indeed counted individual energy states of e/m field (=photons).

In another lab we used Geiger counter to count photons from x-ray tube.

Yet in another UV spectrometer experiments we counted UV photons as dark grains on a film (the larger the energy of a single photon, the bigger "mark" it leaves, so the easier to count 'em).

• STRIKE TWO! - luis_hamburgh - October 30, 2001 - 22:59 UTC
  • So, what knocks electron out of an atom when light hits it? - alexander - October 31, 2001 - 02:28 UTC
    • The atoms are quantized to begin with - yanniru - October 31, 2001 - 15:41 UTC
      • E/m field is quantizied (=photon exists in a vacuum too). - alexander - October 31, 2001 - 19:47 UTC
        • Strike Три !!! - luis_hamburgh - October 31, 2001 - 23:59 UTC
          • Luis! - harvey1 - November 1, 2001 - 15:16 UTC
            • Racial slur? - luis_hamburgh - November 2, 2001 - 01:03 UTC
              • I thought about it later - harvey1 - November 2, 2001 - 03:00 UTC
          • Luis, I am really very sorry - alexander - November 2, 2001 - 18:49 UTC
            • Go back to the dugout - luis_hamburgh - November 2, 2001 - 22:33 UTC
              • What then "interferes" in Michelson interferometer? - alexander - November 3, 2001 - 17:57 UTC
      • Thank you Richard - luis_hamburgh - October 31, 2001 - 23:45 UTC
        • Background - yanniru - November 1, 2001 - 15:18 UTC
          • Anticlimax - luis_hamburgh - November 2, 2001 - 01:09 UTC
            • Luis, lack of arguments? - alexander - November 2, 2001 - 19:26 UTC
              • Alex, is it possible... - harvey1 - November 2, 2001 - 19:56 UTC
                • Harv, this guy is no professor - luis_hamburgh - November 2, 2001 - 22:48 UTC
                  • I don't that's the case - harvey1 - November 2, 2001 - 23:15 UTC
                    • s/b: I don't think that it is the case (nt) - harvey1 - November 2, 2001 - 23:16 UTC
                    • He can't even explain... - luis_hamburgh - November 3, 2001 - 15:19 UTC
                      • Luis, one should be as dumb as only you can be - alexander - November 5, 2001 - 09:19 UTC
                        • It is all elementary - yanniru - November 5, 2001 - 15:22 UTC
          • richard, PhD in e/magn should know how light (and brain) works. - alexander - November 2, 2001 - 19:10 UTC
            • Sante Fe Institute - yanniru - November 3, 2001 - 17:45 UTC
              • This would explain a lot - luis_hamburgh - November 4, 2001 - 16:17 UTC
                • Luis, according to you replies you still live in dark ages. - alexander - November 5, 2001 - 10:08 UTC
              • Richard, wake up - quantum electrodynamics is 50 years old. - alexander - November 5, 2001 - 09:59 UTC