What happens when you take some binoculars apart?

Our Exploring Binoculars program today was a blast! Investigators ranged from about 7 to about 65 years old. It was a technical sort of program, more about how they work than about how to use them. We did a little demo/inquiry first,  with light and lenses and prisms, asking “What might happen if …” questions and then doing that to see what really does happen. Fun seeing upside-down light bulb images on tissue paper become reversed on sweatshirts! (See that “how they work” link for what we did.)

Then we laid out some defective binoculars donated for the express purpose of disassembly (cleaning and reassembly optional). Continue reading “What happens when you take some binoculars apart?”