https://www.youtube.com/watch?v=QOdfERo18pUToday I experimented with top stage lighting
from two angles parallel to the stage, in addition
to substage lighting. I think it improved the definition.
I examined a small bead of biofilm and found
some (for me) novel organisms.
If you want to reply, then
register here. Registration is free and your account is created instantly, so you can post right away.