In this post we’re briefly going to showcase one of our community members’ work as part of a high-school science project.
Below are the results from an experiment by Albert Navarro, a high-school student from Barcelona, Spain. The 2 bins on the left contain radish seeds that were electrified with 9V DC using a bench power supply.
Connected to the power source are electrodes placed 15 cm apart. As you can see, various metals were used as electrodes ranging from steel bolts to a card-cover from a computer case, to aluminum foil. For a test such as this one, the materials used probably don’t matter; yet, if the plants were actually going to be grown for food value, then care must be made in the choice of electrode material, because depending upon a number of factors, you may end up ingesting a good amount of the electrode itself via electrochemical corrosion.
As you can see, the plants are not only 40% larger in height and leaf area, but also more healthy by way of their deep green color.
If you’re interested in more details of this experiment, contact me and I’ll send you the various reports he produced.