The world is full of wonders! Using potatoes to power LED injection molding modules sounds unbelievable, but such a thing has already happened, let's go and see.

When it comes to potatoes, many people probably have their own favorite culinary essentials, but Haim Rabinowitch thinks further. Over the past few years, Rabinowitz and his colleagues have been pushing the idea of "potato power" to try to get people off the grid for energy. They claim that by using simple and cheap metal sheets, wires and LED injection moulding modules, they can provide lighting to remote towns and villages around the world.

They devised a simple, yet very smart way to make potatoes generate electricity. Rabinowitz from the Hebrew University of Jerusalem said: "A single potato is enough to power a room's LED injection molding module for 40 days." This statement may seem grandiose, but it has scientific basis. Recently, Rabinowitz and his team have discovered that the actual application of potato power generation to real life is far more complicated than imagined.

When Rabinowitz and his team discovered that potatoes can generate extraordinary amounts of electricity, the mechanics of how batteries work was still being taught in high school physics classes. To make a battery from organic materials, there are only two pieces of metal, one as the anode, which is the electrode with low potential, such as zinc; the other as the cathode, which is the electrode with positive charge, such as metal copper. The acid inside the potato reacts chemically with the zinc and copper, and the injection molded LED module glows as electrons flow from one end to the other.

In 1780, Luigi Galvani invented the mechanism by attaching two pieces of metal to the frog's legs, causing the frog's muscles to twitch. This "animal electricity" can also be replicated outside of animals, where you can put a lot of other substances between two metal poles and get the same result. Alexander Volta, at the same time as Luigi Galvani, used paper soaked in salt water. Others have made "soil batteries" using two metal sheets and a pile of soil, presumably with a bucket of water.