In reply to Michael Foster's message of Mon, 19 Apr 2021 18:47:08 +0000 (UTC): Hi Michael,
I meant the peak of the photochemical reaction. 540 nm is getting much closer to 1/6 of the Hydrogen ionization energy, which would be at 547 nm. [snip] Regards, Robin van Spaandonk <mixent...@aussiebroadband.com.au>
