T
[email protected]
- Jan 1, 1970
- 0
Re those clocks and calculators powered by a water battery, e.g.:
http://www.thinkgeek.com/gadgets/electronic/757e/
Can someone tell me how to make such a battery? One that would fit into
a relatively small space such as the commercial products do? Or is it
possible to purchase just the battery somewhere?
http://www.thinkgeek.com/gadgets/electronic/757e/
Can someone tell me how to make such a battery? One that would fit into
a relatively small space such as the commercial products do? Or is it
possible to purchase just the battery somewhere?