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Perkin was a British chemist who accidentally discovered mauveine, the first synthetic organic dye, in 1856 while trying to synthesise quinine for malaria. He became a successful entrepreneur and inventor of other dyes and perfumes.
Purple is a color similar to violet light, created by mixing red and blue pigments or light. It has long been associated with royalty, luxury, and spirituality, and was made from a rare and expensive dye in ancient times.
Tyrian purple is a reddish-purple natural dye extracted from several species of predatory sea snails in the family Muricidae, also known as Murex snails. The dye was highly valued in ancient times for its rarity, durability and symbolism of power and wealth.
Henrietta Swan Leavitt (1868-1921) was an American astronomer who discovered the period-luminosity relationship for Cepheid variables. Her work enabled astronomers to measure the distance to remote galaxies and settle the debate over the size of the universe.
Mauveine, also known as aniline purple and Perkin's mauve, was discovered by William Henry Perkin in 1856 while he was trying to make quinine. It is a mixture of four related aromatic compounds and was one of the first chemical dyes to be mass-produced and popularized.
Hercules's Dog Discovers Purple Dye, by Peter Paul Rubens. 28 × 34 cm; oil on panel. Musée Bonnat, Bayonne, France. Hercules's Dog Discovers Purple Dye or The Discovery of Purple by Hercules's Dog is an oil painting by Flemish artist Peter Paul Rubens painted circa 1636, towards the end of his career.
Ignaz Semmelweis was a Hungarian physician who discovered that hand washing could prevent postpartum infections in obstetrical clinics. He faced resistance and rejection from the medical community and died in an asylum in 1865.
The visible spectrum is the band of electromagnetic radiation that is visible to the human eye. Learn about the wavelengths, frequencies, photon energies, and colors of visible light, as well as the history of its discovery and study.