He stuck nails and buttons in the lemon. Within a few minutes, something amazing happened.

If you always have a pair or three of unusual ideas from the category “the goal of fiction is cunning” or “the master of all hands”, those who are near you can always be calm and know for sure that they will never disappear anywhere. In the treasury of your knowledge, take this method - how to get a fire if the matches are damp, and the lighter is lost.

All you need for this simple method is a lemon, ordinary nails, copper buttons, a little technical cotton wool and wire.

With the help of copper and zinc electrodes, the role of which is performed by nails, a real battery is obtained from lemon. Due to the chemical reactions that occur between lemon juice and metals, a potential difference appears on the electrodes. No miracles, all science!