Friday, April 24, 2020

Tuesday, April 21, 2020

The Biofilm

 The biofilm (digi-microscope)
  The biofilm (digi-microscope)















Monday, April 13, 2020

Cells of an Apple Fruit and Skin



Fruit cells low and medium power




Apple Skin Cells Low, Medium, and high power

Sunday, April 12, 2020

New Experiments with Dark Field

Using small dark field "filters" placed on my shelf over the light source and moved until optimum, I have found better levels of contrast and sharpness.

Pictures of the salt water sample.






Saturday, April 11, 2020

Features on a Fly's Thigh

I'm experimenting with dark field and top stage illumination. I discovered that insect skin (the external skeleton) is not smooth but has a lot of texture and odd outgrowths such as horny extensions.





Friday, April 10, 2020

Trying to Understand the Anatomy of a Two-Millimeter Fly

I took a series of micrographs of a fly I found dead on the bathroom sink. The fly is not transparent so it's hard to get the details beyond the outline visible in the light microscope. I have to use a dark field technique with top stage lighting. I'm not very good with the microscope yet so getting these to work is hard for me. Then I have to try to figure out what I'm taking pictures of. In some parts of the fly it's not obvious.

The fly itself, taken with my digital microscope, is the first image . Then come higher magnification images that I try to identify with labels.

You can see that the fly is a little beat up in the slide--probably from carrying it to mount it.
Here are the micrographs.
a mysterious tube like protrusion on the thorax

 probably the antenna

 wing

 part of the antenna resting on the slide

 leg joint

 another leg joint

another picture of the wing