You simply hold the pendulum in one hand, ask simple yes or no questions ... Historically, dowsing entailed using two metal rods to help find lost items or natural resources such as water and minerals ...

For this project I show how to make make a pendulum wave, an interesting science/physics experiment where a series of pendulums is measured so that each one moves slightly faster than the one before ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...