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.
an adjustment mechanism to focus the microscope.