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The Challenge: Make a Microscope

How do we view objects through the glass bead?

Since the bead is so small, it needs to be put inside some sort of housing. On the island, we used a saucepan and a wooden base. A mirror was used to shine light onto the sample to illuminate it.

Since the sphere can only focus at a short distance, the objects we examined had to be thin. We put the samples — such as onion cells or human hair — onto a piece of glass and held them in position with a couple of drops of water. We used water and a cover slip and put the sample under the lens so that it was almost touching.

We incorporated an adjustment mechanism to focus the microscope.

The Rough Science microscope