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1,4-Diamino-2,3-dihydroanthraquinone is an anthraquinone dye used with Disperse Red 9 in colored smoke to introduce a violet color. It is also used in dyes and marine flares . Synthesis
47 (forty-seven) is the natural number following 46 and preceding 48. It is a prime number . It is the adopted favorite number of Pomona College , a liberal arts college in Southern California, whose alumni have added cultural references to it in numerous places, including many Star Trek episodes.
The following historical mnemonics are generally considered offensive/outdated and should not be used in current electronics training: Bad boys rape our young girls but Violet gives willingly.
World War I Medal of Honor recipient Sergeant William Shemin of the regiment's Company G. The 47th Infantry Regiment was organized at Camp Syracuse, near Syracuse, New York, on 1 June 1917, almost two months after the American entry into World War I, with a cadre from the 9th Infantry Regiment; [9] [10] Initially assigned to Major General George H. Cameron's 4th Division; within the division ...
Violet is the color of light at the short wavelength end of the visible spectrum. It is one of the seven colors that Isaac Newton labeled when dividing the spectrum of visible light in 1672. Violet light has a wavelength between approximately 380 and 450 nanometers. [2] The color's name is derived from the Viola genus of flowers. [3] [4]
ROYGBIV is an acronym for the sequence of hues commonly described as making up a rainbow: red, orange, yellow, green, blue, indigo, and violet. When making an artificial rainbow, glass prism is used, but the colors of "ROY-G-BIV" are inverted to VIB-G-YOR".
Pigment Violet 29 (C.I. 71129) is an organic compound that is used as a pigment [1] and vat dye.Its colour is dark red purple, or bordeaux. [1] [2]Structurally, it is a derivative of perylene, although it is produced from acenaphthene.
Erythronium dens-canis, the dog's-tooth-violet [2] or dogtooth violet, is a bulbous herbaceous perennial flowering plant in the family Liliaceae, growing to 25 cm (10 in). It is native to central and southern Europe from Portugal to Ukraine . [ 3 ]