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  2. Crookes radiometer - Wikipedia

    en.wikipedia.org/wiki/Crookes_radiometer

    The white or silver side of the vanes are slightly warmer than the internal air temperature but cooler than the black side, as some heat conducts through the vane from the black side. The two sides of each vane must be thermally insulated to some degree so that the polished or white side does not immediately reach the temperature of the black side.

  3. Suns in alchemy - Wikipedia

    en.wikipedia.org/wiki/Suns_in_alchemy

    The black sun as pictured in the Putrifaction emblem of Philosophia Reformata (Johann Daniel Mylius) Sol niger (black sun) can refer to the first stage of the alchemical magnum opus, the nigredo (blackness). In a text ascribed to Marsilio Ficino three suns are described: black, white, and red, corresponding to the three most used alchemical ...

  4. Wikipedia:Blank maps - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Blank_maps

    Image:Map of USA-bw.png – Black and white outlines for states, for the purposes of easy coloring of states. Image:BlankMap-USA-states.PNG – US states, grey and white style similar to Vardion's world maps. Image:Map of USA with county outlines.png – Grey and white map of USA with county outlines.

  5. Black body - Wikipedia

    en.wikipedia.org/wiki/Black_body

    A black body or blackbody is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence. The radiation emitted by a black body in thermal equilibrium with its environment is called black-body radiation. The name "black body" is given because it absorbs all colors of light.

  6. Solar symbol - Wikipedia

    en.wikipedia.org/wiki/Solar_symbol

    U+2609 ☉ SUN; U+2600 ☀ BLACK SUN WITH RAYS (A more accurate term might be "solid colour". The actual colour is an implementation choice, for example ☀, ☀.) U+263C ☼ WHITE SUN WITH RAYS (A more accurate term might be "outlined". The actual colour is an implementation choice.)

  7. Dakota Johnson Wears transparent Black Bodysuit and Black ...

    www.aol.com/lifestyle/dakota-johnson-wears...

    The transparent look was popular at the show and Johnson was photographed next to actress Daisy Edgar-Jones wearing an ensemble in a similar theme, with a matching white set under a cropped white ...

  8. Flag of the Republic of China - Wikipedia

    en.wikipedia.org/wiki/Flag_of_the_Republic_of_China

    The diameter of the sun with rays is 6 ⁄ 8 of height of the canton, so in this case, it will be 18. The diameter of the white sun without the sun rays is 1 ⁄ 4 of the width of the canton, so it is 9. The blue ring that is on top of this sun and part of the rays is 1 ⁄ 15 diameter of the white sun, so the size will be 0.6. The angle of the ...

  9. Black Sun (symbol) - Wikipedia

    en.wikipedia.org/wiki/Black_Sun_(symbol)

    A leather belt with the black sun symbol as belt buckle. The item is from the 2010s. In the late 20th century, the Black Sun symbol became widely used by neo-fascist, neo-Nazi, [8] the far-right and white nationalists. The symbol often appears on extremist flags, t-shirts, posters, websites and in extremist publications associated with such groups.