blackbody radiation

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Spiral Galaxy type Sa-Sb or Sa/Sb in the constellation Virgo. The majestic Sombrero Galaxy Messier 104 (M104) or NGC 4594. The team took six pictures of the galaxy, stitched them together to create the final composite image. Photo from May-June 2003

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Galaxy clusters like Abell 2744 can act as a natural cosmic lens, magnifying light from more distant, background objects through gravity. NASA's James Webb Space Telescope may be able to detect light from the first stars in the universe if they are gravitationally lensed by such clusters. (astronomy, space exploration, galaxies)

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Remarkable new details of Pluto's largest moon Charon are revealed in this image from New Horizons' Long Range Reconnaissance Imager (LORRI), taken late on July 13, 2015 from a distance of 289,000 miles

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Solar system illustration. (Sun; planets)

A Model of the Cosmos

$Light refraction image with a cube. Prism$

How Is Light Both a Particle and a Wave?

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Human Cannibalism; Johannes Lerii's account of the description of the method the Indians use for "barbecuing" human flesh. Nude Indians barbecuing and eating parts of human bodies; Theodor de Bry.

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Small, white rat (genus Rattus) on a glass table. (rodent, laboratory, experiment)

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B-52G with cruise missiles, USAF, short range attack missiles SRAMs; guided missile

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Thumbnail for flags that look alike quiz Russia, Slovenia, Iceland, Norway

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Amendments 1-10 to the Constitution of the United States constitute what is known as the Bill of Rights on an American flag.

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Computer mapping, woman at early 1990s computer

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Portrait of Marie Antoinette by Jean-Francois Janinet, 1777. Color etching and engraving with gold leaf printed on two sheets, 30x13.5 in.

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blackbody radiation sequence radio emission blackbody 21-centimetre radiation synchrotron radiation Wien’s law Planck’s radiation law Stefan-Boltzmann law

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Key People

William W. Coblentz

American scientist

Max Planck

Max Planck

German physicist

Paul Ehrenfest

Austrian theoretical physicist

Josef Stefan

Austrian physicist

Quiz

Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

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