for this assignment, the first thing my mind jumped to when asked to show something I will never see but know exists was that of color. In physics you learn about the visible light spectrum and how tiny a fraction of that spectrum is visible by our eyes. I know other light exists, and even other colors exist - we know of animals that can see wavelengths humans can’t - but the almost mind-boggling miracle of the human eye isn’t sensitive to them, and I will never know any visible experience of that light.
At the risk of sounding like a freshman philosophy major, figuring out how to show a color that humans cannot see was a little challenging. How do you show a color you cannot see with colors that you can? I took a lot of inspiration from this Minute Physics video, and decided to show the unseeable light in pink, because pink doesn’t exist…well it does, but not in the rainbow as we understand it - it is the stand-in for all the light that exists between ultraviolet and infrared, the closest thing to the light we cannot see.