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Plant Study using aggregate soils and LED lighting.

To test the ability of a strictly LED (light emitting diode) source to produce plant life from seed, and to test the LED’s coverage capacity to create such life.
Desired Outcome
A new and reasonably cost-effective way to grow plants with limited energy output.
Starting Conditions
Day 1: September 9, 1998
Day 5: September 13, 1998
Day 6: September 14, 1998
Day 7: September 15, 1998
Day 8: September 16, 1998
Day 12: September 20, 1998
Day 17: September 25, 1998
Day 22: September 30, 1998
Day 30: October 8, 1998
Day 35: October 13, 1998
Cost Compare: at Day 35
Day 38: October 16, 1998
Day 40: October 18, 1998
Day 43: October 21, 1998
Day 53: October 31, 1998
Cost Changes: at Day 53
Day 58: November 5, 1998
Day 71: November 18, 1998
Cost Changes: at Day 71


Glad somebody is doing this. LED's are cheap, take very little current and can last a very long time. They do emit light in a very narrow bandwidth though. It would be interesting to do a spectral analysis of this light array to see how it stacks up against natural sunlight. I'm sure there would be many peaks and gaps as compared to ordinary light. Nevertheless, this might be the most profitable source of lighting for the Dark Times ahead.


There are certain light frequencies that research has shown plants respond to. Red and Blue light are those frequencies. NASA has done the research already and this product from Quantum was what NASA used.