Part 5/7:
Experimenting with Different Rods: Aluminum and Steel
Next, Paul experiments with smaller aluminum rods, testing their ability to resonate similarly. The results show that the smaller aluminum rods do resonate and produce audible vibrations, confirming their response to the stimuli.
He then ventures into testing a steel rod, which has different properties. While resonance is still observed—though less pronounced—the sound is quieter, and the vibrations do not last as long. This highlights the material-dependent nature of resonance; aluminum, being lighter and more flexible, resonates more readily and vividly compared to steel.