Believe it or not, yes, your average beer can make enough electricity to power an LED!
Next time you have leftover beer, you now know you can recycle energy. Don’t forget that you can also make battery power from lemons, see here for that.
The equipment I used; A test tube rack I built myself, test tubes, a beaker, a galvanometer, a resistor, crocodile clips on wires and a Light Emitting Diode. The electrical c