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Light from the sun is broad spectrum. Photosynthesis uses only part of the spectrum. In a charmed world, you could power LEDs using energy from the unused spect
by tlholaday 11y ago
Light from the sun is broad spectrum. Photosynthesis uses only part of the spectrum. In a charmed world, you could power LEDs using energy from the unused spectrum, and be more efficient than sunlight.
Edit:
Turns out, there is a Y-Combinator company making agricultural LEDs:
https://blog.ycombinator.com/transcend-yc-s15-makes-extra-efficient-led-lights-for-the-indoor-farms-of-the-future https://blog.ycombinator.com/transcend-yc-s15-makes-extra-ef...
- fezz 11y agoAbsorption spectra of Chlorophyll: http://www.webexhibits.org/causesofcolor/7A.html http://www.webexhibits.org/causesofcolor/7A.html
- refurb 11y agoYes, but the sun is free. It's not like plants grow poorly in sunlight.
- WalterSear 11y agoThey do grow poorly in sunlight in plenty of places. For example, places where water need to be conserved.