Modern technology has certainly served us well in our homes. Today we have natural gas lines, electricity, air conditioning, microwaves, hot water, hot running water, refrigeration, and all the modern amenities. But we also use a lot of energy. Now engineers are working on high tech appliances that are ultra-super efficient. It is truly amazing the quality of life we can live for such low costs.
Still, I’ve always thought that the ancient cultures who dug tunnels underground and allowed wind blowing into one end of the tunnel with outlets into the living area for air-cooling were wise, and that was a form of air-conditioning and it didn’t take any energy once the tunnels for ventilation were created. No it wasn’t perfect, but it worked. Even the American Indians built Kivas to stay cool in the hot summers and many of them had devised various rudimentary forms of air cooling vent systems.
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