Science and technology meet form and function! Simply add water into the fuel cells and you have a functioning 8 bit environmentally friendly calculator. Instructions included. How does this amazing environmentally friendly calculator run on water or other electrolytic fluids? The internal converter extract electrons from the fluid molecules and provides a steady stream of electricity to generate power for the Calculator. The amazing Hydro Calculator runs on water or most any liquid! It accurately calculates without batteries or solar cells - just add water!
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