This one is for my #SolarPunk pals @sunbeam.city 🤟
So in July of 1974, the "old-timey hippie" generation (my parents' generation) was in their mid 20's to mid 30-ish. Those hippies had just barely just convinced the world that it probably wasn't the best idea to go on with the catastrophic pollution crisis which Mother Jones so bluntly captured here: https://www.motherjones.com/politics/2011/12/smog-photos-1970s-america/
They were pioneers of their own right, showing that those toxic chemicals were a poor replacement for the natural energy of the sun, which can be used to meet all of our human needs for energy in one form or another.
From the magazine featured below, they shared a design of a #SolarOven. It's based on the concept of a Fresnel Lens, a sort of "grooved" lens that is specifically designed to concentrate rays into a high-heat situation to cook food or make an oven!
Just goes to show that high-tech does not need to be elite-tech.
Happy Memorial Day to the generation that knew we didn't need GUNS to make peace.
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