Скачать или смотреть The $3 'Smart' Sensor That Beats Modern Tech. Engineers Knew This In 200 BC

Modern gardeners spend hundreds on smart sensors, drip lines, and electronic timers that clog, corrode, and fail within a few seasons. Meanwhile, engineers in China and North Africa solved the same problem four thousand years ago using nothing but clay and physics. The Olla system uses unglazed terracotta buried in the soil, releasing water only when dry roots physically pull it through the pot's micropores—a self-regulating valve with no batteries, no microchips, and no moving parts. This eliminates surface evaporation, prevents overwatering, and requires zero maintenance. The technique was erased from modern agriculture when the petrochemical plastics industry needed you buying replaceable drip lines every few years. Two terracotta pots glued together for under five dollars, outperforming technology specifically designed to make it obsolete.