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Electron microscope

An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination. As the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, electron microscopes have a higher resolving power than light microscopes and can reveal the structure of smaller objects. A scanning transmission electron microscope has achieved better than 50 pm resolution in annular dark-field imaging mode and magnifications of up to about 10,000,000x whereas most light microscopes are limited by diffraction to about 200 nm resolution and useful magnifications below 2000x.

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I beat all those little guys!

I really am a winner!!

Contributed by Josh Milligan


Close up of an earthworm!

Contributed by Josh Milligan

15,000X Magnification!

This is a real photo taken with an electron microscope. Just glad they didn't catch anybody doing the deed.

Contributed by Josh Milligan

These guys don't look so mean!

Contributed by Josh Milligan


Contributed by Beth Wiecher


Contributed by Beth Wiecher


Contributed by Beth Wiecher

Octopus Suckers

This is a slightly cropped version of an image that earned honorable mention, which also is a false colored electron micrograph, taken by Jessica D. Schiffman and Caroline L. Schauer of Drexel University. The color scheme was apparently provided by the movie Little Shop of Horrors and, for the right victim, these things are a source of horror: they're the suckers that line the arms of a squid,

Contributed by Laura Diana Escamilla

The Glass Forest

Mario DeStefano of Naples was the winner in the photography section for this image, which he entitled The Glass Forest. The trees here are diatoms, unicellular aquatic creatures that fashion a cell wall from silica, rather than organic or calcified materials. Each of the fan-like diatoms is approximately 30 microns across, and they're growing on the surface of a marine invertebrate. The initial source was an electron microscope, so please recognize that the colors are supplied by DeStefano

Contributed by Laura Diana Escamilla

Bluebottle Maggot

A coloured scanning electron micrograph (SEM) of the head of a maggot or the larva of a bluebottle fly (Protophormia sp.) with tiny teeth-like fangs extending from its mouth. The maggots of this fly are used medicinally to clean wounds. The maggots are sterilised and placed in the wound, where they feed on dead tissue and leave healthy tissue untouched. Their saliva contains anti- bacterial chemicals which maintain sterility in the area. Maggots are used on ulcers and deep wounds away from organs or body cavities, most often being used to treat diabetic ulcers on the feet.

Contributed by Laura Diana Escamilla

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