How so? If you feed 1 watt of power into a 10Mhz isotropic antenna you get a pho... | Hacker News

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		packet_nerd on Sept 9, 2020 \| parent \| context \| favorite \| on: New Zealand is about to test long-range wireless p... How so? If you feed 1 watt of power into a 10Mhz isotropic antenna you get a photons of a certain energy spreading out in all directions. If you feed 1 watt of 10Ghz into a isotropic antenna, are you saying that the photons have more energy than the 10Mhz version? Where does the extra energy come from? I'll admit it's been way to long since physics class, so forgive me.

bananabreakfast on Sept 9, 2020 | [–]

https://en.wikipedia.org/wiki/Photon_energy

Metacelsus on Sept 9, 2020 | | [–]

There are fewer photons emitted, but each is more energetic.

mhh__ on Sept 9, 2020 | [–]

E = hf = h c / λ

Power != Energy

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