Resonance Can Make Things Happen

Resonance refers to adding energy into a system consistent with or basically at the same time as its fundamental frequency. If you push whole multiples say every second swing or a root tenth swing, the less frequently you do it, the less energy is going to be added. But up until that point you'll gradually increase the energy. So there's an example you may have heard of a bridge that collapsed because of essentially wind which was blowing in some complicated way on the bridge in line with its natural vibration frequency. This one's compared to polarization phase and resonance. Really, reflection and absorption. I'll take these two together because they go together.