About a month ago I wrote about a motor-less water pump. Moving water from one location to another has always been important, even more so, uphill. Water is an element we have been trying to harness since we grew out of a single-cell organism. Water gives us life, helps us to cultivate life, and feed life. This is why I found this next video fascinating. What if we could convert, and even store, the energy of water for later use. We often covert the energy of water into...