Introducing the water powered calculator

Here’s something fun for the math geeks, addicted to calculus. I know you’ve heard and probably used a solar based calculator (quite a popular attraction for eco snobs), but here’s something that might surprise you, the water based calculator! Add a few drops of water to the removable battery and insert it in the calculator for up to three months of use. When the display begins to fade, just refill the battery! Boy tech does go in far places, just a few more months we’ll have a water-powered car, too. Or maybe not…. Anyway, bellow you can find the specs.

• Eco-friendly new battery can be re-energized by addition of water again and again
• Battery can be stored in a dry state indefinitely, and activated when needed
• Ergonomic design
• Rectangle shape
• Large LCD display
• 12-digit display for home, school or professional use
• Large easy to use buttons
• Buttons measure approx 3/8-inch square
• Includes standard adding machine functions such as memory + or -, last digit correction, rounding, automatic decimal, etc.