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21 hours ago · Wood's glass is a deep violet-blue barium-sodium silicate glass with about 9% nickel oxide developed during World War I to block visible light for covert communications. It allows both infrared daylight and ultraviolet night-time communications by being transparent between 320 nm and 400 nm and also the longer infrared and just-barely-visible red wavelengths.
21 hours ago · In 1998, images from the European Space Agency's Infrared Space Observatory demonstrated that the overall form of the Andromeda Galaxy may be transitioning into a ring galaxy. The gas and dust within the galaxy are generally formed into several overlapping rings, with a particularly prominent ring formed at a radius of 32,000 ly (9.8 kpc) from the core, [ 92 ] nicknamed by some astronomers the ...
Oct 7, 2024 · Fermilab leads a direct experimental search for weakly interacting massive particles (WIMPs). These experiments, deployed deep underground to shield from cosmic ray backgrounds, seek recoils of atomic nuclei from extremely rare collisions of dark matter particles.
21 hours ago · Hubble Space Telescope image of the nebula M1-67 and the Wolf–Rayet star WR 124 in the center. Once included as type O stars, the Wolf–Rayet stars of class W [88] or WR are notable for spectra lacking hydrogen lines. Instead their spectra are dominated by broad emission lines of highly ionized helium, nitrogen, carbon, and sometimes oxygen.
21 hours ago · Turkey, [a] officially the Republic of Türkiye, [b] is a country mainly located in Anatolia in West Asia, with a smaller part called East Thrace in Southeast Europe.It borders the Black Sea to the north; Georgia, Armenia, Azerbaijan, and Iran to the east; Iraq, Syria, and the Mediterranean Sea to the south; and the Aegean Sea, Greece, and Bulgaria to the west.
21 hours ago · Pink is the color [2] of a namesake flower that is a pale tint of red. [3] [4] It was first used as a color name in the late 17th century. [5]According to surveys in Europe and the United States, pink is the color most often associated with charm, politeness, sensitivity, tenderness, sweetness, childhood, femininity, and romance.
21 hours ago · Burton was briefly attached to direct Maleficent for Walt Disney Pictures in 2011, but chose to pursue Dark Shadows and Frankenweenie instead. [ 71 ] It was reported that Burton would direct a 3D stop motion animation adaptation of The Addams Family , which was confirmed by Christopher Meledandri, [ 72 ] but the project was scrapped on July 17, 2013. [ 73 ]
