Green buildings, sustainable energy, utilizing natural light and water may all sound recently coined buzz-phrases but in reality these concepts dates back to tens of thousands of years. From Greece and Rome to Persia and North America, our ancestors had innovative concepts to use geothermal, water, wind and solar power.
Ancient Persian windmills are perfect examples of how wind was utilized for power and water. Some 3000 years before in ancient Persia, windmills were used to grind grain and pump water. Vertical paddles were created by bundling reeds together and these paddles spun around a central axis. Carefully placed exterior walls ensured that wind would primarily drive the potentially bidirectional system in the desired direction.
|Images via: Ullesthorpe, Blue Planet, Deutsches Museum and World of Energy|