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Lean or purple drank (known by numerous local and street names) is a polysubstance drink used as a recreational drug. It is prepared by mixing prescription-grade cough or cold syrup containing an opioid drug and an anti-histamine drug with a soft drink and sometimes hard candy.
Agent Purple is the code name for a powerful herbicide and defoliant used by the U.S. military in their herbicidal warfare program during the Vietnam War. The name comes from the purple stripe painted on the barrels to identify the contents.
Left figure is urine on the first day while the right figure is urine after three days of sun exposure showing the classic change in color to purple. Porphyria is a group of disorders in which substances called porphyrins build up in the body, adversely affecting the skin or nervous system. [1]
"Purple Haze" is a song written by Jimi Hendrix and released as the second single by the Jimi Hendrix Experience on March 17, 1967, in the United Kingdom. The song features his inventive guitar playing, which uses the signature Hendrix chord and a mix of blues and Eastern modalities, shaped by novel sound processing techniques.
Violet is closely associated with purple. In optics, violet is a spectral color (referring to the color of different single wavelengths of light), whereas purple is the color of various combinations of red and blue (or violet) light, [5] [6] some of which humans perceive as similar to violet.
Tyrian purple is a pigment made from the mucus of several species of Murex snail. Production of Tyrian purple for use as a fabric dye began as early as 1200 BC by the Phoenicians, and was continued by the Greeks and Romans until 1453 AD, with the fall of Constantinople.
Purple: unnatural (contrasting with natural connotations of green, yellow, blue) Gray/Black: human structures (roads, buildings) Other colors can have intuitive meaning due to their role in Gestalt psychology and other cognitive aspects of the map-reading process.
For example, to achieve the complement of yellow (a primary color) one could combine red and blue. The result would be purple, which appears directly across from yellow on the color wheel. Continuing with the color wheel model, one could then combine yellow and purple, which essentially means that all three primary colors would be present at once.
Violet noise is also called purple noise. Violet noise's power density increases 6.02 dB per octave with increasing frequency "The spectral analysis shows that GPS acceleration errors seem to be violet noise processes. They are dominated by high-frequency noise." (density proportional to f 2) over a finite frequency range.
Twilight anesthesia. Twilight anesthesia is an anesthetic technique where a mild dose of sedation is applied to induce anxiolysis (anxiety relief), hypnosis, and anterograde amnesia (inability to form new memories). The patient is not unconscious, but sedated. During surgery or other medical procedures, the patient is under what is known as a ...