File:SpaceBeadsSRM 030.jpg
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| Description | A small area of a microscope slide shows human red blood cells along with the 10-micrometer spheres (dark circles) that were made in space. NBS standard reference material (SRM) 1960, 10-Micrometer Polystyrene Spheres, is an inmportant tool for calibrating instruments to measure small particles such as blood cells. | |||
| Source | National Institute of Standards and Technology | |||
| Author | National Institute of Standards and Technology | |||
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This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 16:21, 11 March 2014 | | 5,843 × 4,599 (1,019 KB) | NISTResearchLibrary (talk | contribs) |
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