Homework due after the retreat

1. Observe the image of "harmonics" from class below. Can you come up with an equation that represents/predicts the wavelength series, starting from the simplest/first wave?

2. Check out the electromagnetic spectrum chart. See if you can find out, doing some bits of research, where these devices reside in the spectrum: cell phones, garage door openers, sunlight, FM radio, AM radio, TV, any other waves of interest to you.

3. Define these words: harmonics, wave, radian