nikon's small world photomicrography competition

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The Best Of The Smallest

Check out the top four images from this year’s Nikon Small World Photomicrography Competition, which were announced on Oct. 30.

First prize, at top, went to Panama's Rogelio Moreno, a self-taught hobbyist microscopist who captured an open-mouthed rotifer. The miniscule aquatic animal helpfully mugged for the camera as Moreno snapped his pic. He used a technique call differential interference contrast microscopy to view the transparent creature. He watched it move around for hours, waiting for just the right shot.

“When you see that movement, you fall in love. I thought - wow, that is amazing. I can’t believe what I’m seeing. This is something very, very beautiful,” Moreno said after learning he won the award. “I hope now it can inspire others as much as it has inspired me – to learn about science, to look closely and notice something truly amazing.”

Click the images to learn more.

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Fossil blue-green algae.

Another image from the Nikon small world photomicrography competition, winning 5th place in 1993, depicts a fossilised section of the type of organism that gave the world free oxygen three billion years ago or more. Without these life-forms, who incidentally are not algae but cyanobacteria, none of life as we know it would exist. The oxygen from these first photosynthesisers first filled the oceans, resulting in the banded iron formations from where we mine that metal, and then the atmosphere, paving the way for the rise of oxygen using marine and terrestrial life. In the process, they incidentally poisoned off most of the existing ecosystem, since it couldn’t tolerate free oxygen. They survive as what we now call extremophiles.

The magnification is 10 times, and the lighting used that known as brightfield, which is direct illumination from below the sample.

Loz

Image credit: Norm Barker

Etch star on ruby crystal.

Whether natural or synthetic, ruby crystals have shapes on their surface. These occur as pits or raised bumps, and are usually triangular or hexagonal. Their shape is influenced by the crystal structure of the mineral, and they represent areas there the crystal was growing when the Earth ichor from which it crystallised ran out, or eaten away by magma or hydrothermal metamorphic fluids during its sejourn deep in the Earth.

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Landscape in agate.

This beautiful picture was taken by John Koivula of the Gemmological Institute of America, and shows inclusions of goethite and haematite (iron oxides) in a specimen from Brazil. It won first place in the 1984 Nikon small world photomicrography competition. It was taken in transmitted light with the help of fibre optic side illumination at 30x magnification. What wonderful things gems have within.

Loz