File:Diatomaceous_Earth_BrightField.jpg
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Summary
DescriptionDiatomaceous Earth BrightField.jpg |
English: Diatomaceous earth, also known as diatomite or kieselgur, as viewed under bright field illumination on a light microscope. Diatomaceous earth is a soft, siliceous, sedementary rock made up of the cell walls/shells of single cell diatoms and readily crumbles to a fine powder. Diatom cell walls are bivalve, i.e. made up of two halves, and are made up of biogenic silica; silica synthesised in the diatom cell by the polymerisation of silicic acid. This sample consists of a mixture of centric (radially symmetric) and pennate (bilaterally symmetric) diatoms. The primary uses of diatomaceous earth are for cleaning (scouring), filtration, heat-resistive insulation and as an inert absorbent substrate. One of the most famous uses was by Alfred Nobel who developed dynamite; a mixture of diatomaceous earth and nitroglycerin. This image of diatomaceous earth particles in water is at a scale of 6.236 pixels/μm, the entire image covers a region of approximately 1.13 by 0.69 mm. |
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Author | Zephyris |
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10 July 2010
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current | 19:49, 10 July 2010 | 7,062 × 4,284 (7.89 MB) | Zephyris | {{Information |Description={{en|1=Diatomaceous earth, also known as diatomite or kieselgur, as viewed under bright field illumination on a light microscope. Diatomaceous earth is a soft, siliceous, sedementary rock made up of the cell walls/shells of sing |
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- Biogenic silica
- Diatom
- Marine life
- Marine microorganisms
- Marine sediment
- Microfossil
- Micropaleontology
- Protist shell
- Silicate mineral
- Talk:Diatomaceous earth/Archive 1
- User:Epipelagic/sandbox/current1
- User:Zephyris
- User:Zephyris/Micrograph gallery
- User talk:Zephyris
- Wikipedia:Featured picture candidates/August-2010
- Wikipedia:Featured picture candidates/Diatomaceous earth
- Wikipedia:Featured pictures/Sciences/Geology
- Wikipedia:Featured pictures thumbs/24
- Wikipedia:Main Page history/2012 March 2
- Wikipedia:Picture of the day/March 2012
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- Wikipedia:Picture peer review/Diatomaceous earth
- Wikipedia:Reference desk/Archives/Science/2010 July 10
- Wikipedia:WikiProject Geology/Automated list of recognized content
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- Wikipedia:Wikipedia Signpost/2010-08-16/Features and admins
- Wikipedia:Wikipedia Signpost/Single/2010-08-16
- Template:POTD/2012-03-02
- Portal:Earth sciences
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Horizontal resolution | 96 dpi |
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Vertical resolution | 96 dpi |
Software used | Paint.NET v3.5.5 |