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from article Electromagnetic pulse (EMP)

The explosion from the Climax test shot of Operation Upshot-Knothole, conducted in June 1953 at the Nevada Test Site. (Credit: National Nuclear Security Administration/Nevada Site Office/DOE)

Image

from article Electromagnetic pulse (EMP)

Total gamma source strength versus time for nominal 1-megaton surface burst. Both horizontal and vertical scales are logarithmic.

Image

from article Electromagnetic pulse (EMP)

Schematic representation of the EMP in a high-altitude burst. The extent of the source region varies with the altitude and the yield of the explosion.

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from article Electromagnetic pulse (EMP)

Schematic representation of the EMP in a surface burst.

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from article Electromagnetic pulse (EMP)

Typical system protection scheme.

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from article Clypeasteroida

Major features of a clypeasteroid sand dollar, Leodia sexiesperforata (a species typical of the Caribbean), from the family Mellitidae. Aboral view is on the left; oral view is on the right.

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from article Batrachoidiformes

Atlantic midshipman (Porichthys plectrodon, order Batrachoidiformes). (Photo courtesy of the SEFSC Pascagoula Laboratory, Collection of Brandi Noble, Southeast Fisheries Science Center, National Marine Fisheries Service, National Oceanic and…

Image

from article Turmeric

Rhizomes of turmeric (Curcuma longa). The rhizomes are ground up into an orange–red powder that is used as a spice or a dye. (Photo by Forest and Kim Starr)

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from article Paracrinoidea

Reconstructions of two paracrinoids showing different proposed living positions. (a) Amygdalocystites from the Late Ordovician of Ontario, Canada, held up some distance in the water column by a curved attached stem (after T. E. Guensburg, J.…

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from article Sporozoa

Fine structure of a coccidian merozoite (Eimeria miyairii from the rat). (a) Longitudinal section. Cross sections at levels of (b) nucleus, (c) Golgi complex, (d) large dense granules, (e) cytostome, (f) paired organelle, and (g) conoid. (After…

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