Electric Circuit Experiments: Resonance Control

Video Transcript

"Alright, so now I'm going to show you how to control the reactants and the residence of these circuits. That is the frequency that they're going to be resonating or making. So what I do is I take two alligator clips and I hook them up to either ends of this resistor so that we put our material being tested under and parallel as we say, with the circuit. I turn my speakers on so I can hear my oscillator and now we can see if I do a potato I get a frequency sort of like that. But a potato isn't quite as conductive as a lemon is. So I'm going to try out my lemon. Lemon being much more conductive, even if I place them farther apart it's going to be able to do higher frequencies, and then if I squeeze it and get the juices flowing, break up all the individual cells. Then we can even find higher pitch areas where it's just acid. Just citric acid, lemon juice, connecting our two circuits here and not any of the pith or the fiber of the lemon. So using different fruits or vegetables you can get different resonant tones out of your circuit."