Benefits add up for water-powered calculator | Crave, the gadget blog – CNET
My 2 Cents: Now here is an amazing innovation that seems to have been around for a little while but I really like the idea "eco-friendly water-powered gadgets... (Credit: Solutions.com) We really like the idea of eco-friendly water-powered gadgets. Exhibit A: the H20 desk calculator. Add a few drops of tap water to the removable…