This time he’s come up with a wind-powered pump to move air through a hose to a modified scuba mask. The wind turbine’s blades look professional but you’ll be surprised to see that they’re ...

By 200 BC, wind-powered water pumps were used in Han dynasty China, and early windmills ground flour in Persia and west Asia. By the 11th Century, wind pumps and windmills were used for food ...