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#microscope

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Warren Currie 🦠🦐

Weekend #Plankton #Factoid 🦠🦐
The study of #phytoplankton is difficult because of their small size. For this we thank Antonie van Leeuwenhoek (1632-1722), the "father of microbiology". This Dutch draper was self-taught in creating high-quality #microscope lenses to examine thread. He then viewed tooth scrapings and water, coined the term "animalcules" for #protozoa, and first described Spirogyra (👍 genus name from JHF Link) as “spirally wound serpent-wise earthy particles”. A #science was born.

image/jpeg a sketch of a man in academic style robes, a crevat, and long curled wig, sitting by a globe and holding a scientific instrument. Antoni van Leeuwenhoek. Mezzotint by J. Verkolje, 1686 CC BY 4.0
image/jpeg an old brass instrument comprised of a large backing plate, with a screw mechanism on the front which comes to a sharp point. A glass lens in the plate is barely visible near the point. Van Leeuwenhoek microscope. Museum Boerhaave, Leiden CC-BY-SA 3.0
image/jpeg a view through a microscope of an algal filaments that contains two very green spirals in a double helix, similar to the structure of DNA. The charophyte green algae Spirogyra. Public Domain.
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Jen

As Fediverse knows odd things...

Where (UK) can I buy a microscope?

I don't want to spend a lot, nor do I need anything fancy. Just a step up in quality from the cheap plastic Early Learning Centre one I have.

Second hand would be perfect. EBay has many, but I've no way of knowing if they're any good.

In my head, I'm picturing the solid, heavy things I used to use at school. One that old would, I'm sure, be fine.

Any suggestions?

#science#microscope
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Certified MTP

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microscope used models
#Microscope#UsedMicroscope#LabEquipment
Public
Warren Currie 🦠🦐

Weekend #Plankton #Factoid 🦠🦐
Most aquatic scientists, particularly those working on #algae are familiar with the name Hans Utermöhl. His name is synonymous with the "Utermöhl method" of settling #phytoplankton in a slide-off sedimentation chamber, with the base chamber assessed using an inverted light #microscope (which he helped develop). Every phytoplankton taxonomist uses this technique. He was foundational in the #German #limnology research community. #science
academic.oup.com/plankt/articl

image/jpeg a historical photo of clean cut man in a lab coat sitting in front of a microscope in a lab. Photo from Max Planck Institute of Evolutionary Biology.
image/jpeg a historical photo of a microscope with a distinct bottom mounted lens system that points upward. A series a glass tubes with wooden a box of glass slide plates sits to the side. Image from Utermöhl (1931).
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