How to Make a Speaker with Just a Few Simple Parts
To those who don't understand, electronics can seem like magical pieces of engineering that you have no hope of ever understanding. However, electronics can sometimes be explained, and also built, in much simpler more rudimentary ways. One youtuber has built his very own speaker using only a CD, some springs and wires, and neodymium magnets. This would be an awesome DIY project to teach your kids how a speaker works, or maybe ramp things up a notch and make yourself a speaker using a little more precision.