Build a Geodesic Dome Solar Greenhouse to Grow Your Own Food
Here's Dad's data collection setup: The data logger on top tracks temperature, humidity, and the sun's intensity, and reports it to Dad's computer; the thermometer on the bottom is a good indication of how efficient the greenhouse is -- it's not quite 48 degrees outside, but a balmy 62 inside, even before the sun gets high in the sky, at 10am.
Photo credit: Jim Dunn












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