View allAll Photos Tagged microscope
Professor of Biology and Microbiology Robert Wise, works on the electron microscope in Halsey science center. Thursday, February 28, 2019.
Using a copy stand for vertical support and alignment, and a hobby stage for XY movement.
Also shows the hardware store petri dish holder.
Woodinville Whiskey Rye. Approx. 40X I accidentally put a lot on this slide, and it wound up being a happy accident.
Camera
Immediately above the oculars is a shutter, that in one position directs the light beam through the oculars, or in the other position, directs it to the camera mounted on top. As with the camera on top of it, it doesn't really work.
4x objective
0.10 N.A.
HD Video
Measured Group 4, Element 2
17.9 line pairs/mm = 55.9 microns per line pair = 49 pixels in this image.
0.876 pixels/micron
876 pixels/mm
Final-instar Chilenocaecilius ornatipennis nymph found on a fencepost in the Kingmoor Sidings Nature Reserve, Carlisle, 22 December 17.
This might not look much, but it's without doubt my most interesting - and perhaps important - finding to date!
I'd no idea what species it might be at the time, but as it was the first sizable barkfly nymph I'd seen all winter, I thought it was worth collecting. As soon as I'd given it a quick once-over at home and had spotted its distinctive head markings, I couldn't see what else it could be other than a Chilenocaecilius ornatipennis nymph. Although I'd found my second adult of this UK rarity just two days earlier, it had never entered my head that I'd also be finding a youngster - especially at this time of year!
It was photographed with the integral camera on my SX10D microscope, Photos 1 and 3 being taken on the day of capture, with Photo 2 (a ventral shot through the lid of a petri dish) taken the following day.
As it seemed to me to be an important discovery, I sent a few images to Keith Alexander, UK barkfly expert and the coordinator of the National Barkfly Recording Scheme (Britain and Ireland) website. He agreed that it was probably a Chilenocaecilius ornatipennis nymph but suggested that I try to rear it through to adult for confirmation (see later photos).
Interestingly, the images were also passed on to Charles Lienhard, a renowned entomologist from the Natural History Museum of Geneva. He was not aware of any existing photographs of this nymph, so these may be a world first!
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.