DIY Water Powered Calculator
Instead of purchasing an eco-friendly water powered calculator and tossing out your old one, only for it to slowly rot in a landfill, you could make your own. It seems to be a whole lot more eco-friendly to convert your current items into something eco-friendly rather than replacing the gadgets you already own. Thanks to a tutorial, you could easily make your own earth friendly calculator.
The tools you’ll need include a calculator, carbon or copper rod, a 1 by 1 inch piece of aluminum foil, a small cylindrical container, two 3 inch wires, multipurpose pliers and a glue gun. The materials are pretty basic, nothing you couldn’t get from your local hardware store. I imagine this will work like any other calculator powered by water. You just need to make sure to refill the battery with water when it’s needed.
Source: Instructables
Join 6 reviews or comments
Angelo10 Says: July 13, 2010 at 3:02 am
That my project from Instructables. I am 12 years old now. It just works like a lemon battery but uses water instead.
Here’s a link:
http://www.instructables.com/id/Water-Powered-Calculator/
Angelo10 Says: July 13, 2010 at 6:03 am
If people redirect this please give credits to the person who did this: Me (angelo10) thanks!
dave brick Says: September 14, 2010 at 6:32 am
I had this problem once with glue that had stuck to an old hay barn, I had to use an old tool from 1940 to get it off. It’s so much simpler back in the old days.
John Says: October 1, 2010 at 10:31 am
LOL What a shame that someone who should know something about electronics does not even know how a battery works. Water doesn’t power the calculator, the degrading electrodes are powering the calculator through a redox reaction.
I love gadgets and stuff, but I was expecting more from a well established gadgets website. What a shame..
Do it yourself Says: October 9, 2010 at 6:51 am
is it really a water powered or its a soler and you just saying its a water powered .
Nick Says: July 11, 2010 at 2:40 pm
For a site that writes on gadgets, I would have assumed you had a basic understanding of chemistry and would have caught this. This calculator is not being powered by the water. The instructable simply has you construct a simple battery using water as an electrolyte. The energy comes from the reaction between the two electrodes, which will eventually wear down, yielding a “dead” battery.