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Just posting to host this, so I can get an ID on these bugs.
If you know what this is on the left, please give me a clue.
One on the right is a rotifer.
Scale bar is 50 micrometers
Professor of Biology and Microbiology Robert Wise, works on the electron microscope in Halsey science center. Thursday, February 28, 2019.
The light intensity dial was a gimmick I thought would be easy to include... LEGO lights don't dim, so it was impossible to make functional, so I could make do with with a fake dial, right?! Easy Peasy! It turned out be not easy at all; not in the place I wanted it, and not at the desired angle. But in the end, it worked out; it fits and the indicator light slides to the left or right when you turn the dial.
Source: E. C. Bolles Collection of Microscope Slides, San Diego Natural History Museum.
Image id: SDNHM_Microscope_Slides_016
The back cover of _Microscope and the World of Science_
I like this image, and I look at and think 'hmmm, the stages could be easily removed, and the objective and eyepiece moves, so the xyz steppers can all be stationary....
Professor of Biology and Microbiology Robert Wise, works on the electron microscope in Halsey science center. Thursday, February 28, 2019.
Professor of Biology and Microbiology Robert Wise, works on the electron microscope in Halsey science center. Thursday, February 28, 2019.
Students in Dave Potter's Ichthyology class at Unity College dissect a variety of fish species during a lab period. They weighed, measured, and identified the specimens before removing the pharyngeal bone for further examination.
This microscope is equipped with six objectives; 2x, 4x, 10x, 20x, 40x and 63x. Combined with the 10-fold magnifying oculars, the user can switch between a 20-, 40-, 100-, 200-, 400- and 630-fold magnification. After a few horribly complicated attempts, I stumbled on a very simple, but very robust way of turning the objectives and let them twist exactly in the light path so that it shines through the selected objective!
Professor of Biology and Microbiology Robert Wise, works on the electron microscope in Halsey science center. Thursday, February 28, 2019.
Professor of Biology and Microbiology Robert Wise, works on the electron microscope in Halsey science center. Thursday, February 28, 2019.
The light intensity dial was a gimmick I thought would be easy to include... LEGO lights don't dim, so it was impossible to make functional, so I could make do with with a fake dial, right?! Easy Peasy! It turned out be not easy at all; not in the place I wanted it, and not at the desired angle. But in the end, it worked out; it fits and the indicator light slides to the left or right when you turn the dial.
This model microscope does not win many points on ergonomics; not with the focus knob at the back. The reason for placing it there, is that the mechanism that raises and lowers the objectives is rather chunky. By turning the focus knob, a linear actuator lifts or lowers the objective carousel. Of course, it is possible to raise them too high and crush the objective into the table. If you have never cracked a slide, you never have used a microscope! (After I wired the microscope up, though, the carousel gets stuck just below the maximum height...)
Objectives with magnification ratings and stage graduations of a compound light microscope. Equipment useful in research as well as teaching purposes.