Correct Interpretation for “Harvard Tower Experiment” or Law of Energy Conservation for “Free Fall” Photon

[摘要] You have mirror on table top, reflective side up. Now you have onephoton, 100 m above that mirror, going straight down. As photon “falldown” its frequency is bigger and bigger, until it hits a mirror. Than it startsto go straight back up, now its frequency is getting smaller and smaller.When it passes 100 m mark, it will have same frequency as before [1].