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DU Spectrophotometer, National Technical Laboratories, 1947. The DU spectrophotometer or Beckman DU, introduced in 1941, was the first commercially viable scientific instrument for measuring the amount of ultraviolet light absorbed by a substance. This model of spectrophotometer enabled scientists to easily examine and identify a given ...
Curtiss Model D. A "headed" Curtiss Model D (Curtiss photo 1916) pusher; later "headless" models incorporated elevators around the rudder in the tail (like most aircraft since). The 1911 Curtiss Model D (or frequently " Curtiss Pusher ") was an early United States pusher aircraft with the engine and propeller behind the pilot's seat.
Ultraviolet index. The ultraviolet index, or UV index, is an international standard measurement of the strength of the sunburn -producing ultraviolet (UV) radiation at a particular place and time. It is primarily used in daily and hourly forecasts aimed at the general public. The UV index is designed as an open-ended linear scale, directly ...
Years active. 1996–present. Camille Althea McKayle (born 1964) is an Afro-Jamaican -American mathematician and is the current Provost of the University of the Virgin Islands (UVI). She holds a PhD in mathematics from Lehigh University and taught undergraduates at Lafayette College and UVI from 1993 to 2008. In 2008, she became Interim Dean of ...
UV mapping. The application of a texture in the UV space related to the effect in 3D. A representation of the UV mapping of a cube. The flattened cube net may then be textured to texture the cube. UV mapping is the 3D modeling process of projecting a 3D model's surface to a 2D image for texture mapping. The letters "U" and "V" denote the axes ...
UVI was founded as the College of the Virgin Islands on March 16, 1962. [1] : 310 In 1986, it officially became one of the historically black colleges and universities. [1] : 310 The institution also changed its name in 1986 to the University of the Virgin Islands to reflect the growth and diversification of its academic curriculum, research ...
The John Deere Model D tractor was a large standard tractor produced by John Deere from 1923 to 1953. Unlike other John Deere letter-series tractors, it kept the "D" designation throughout production, and never changed to a number designation. The D had the longest model run of any John Deere tractor. It was succeeded by the John Deere Model R.
The Cadillac Model D is an American brass age car that was introduced by Cadillac in January 1905, and sold throughout that year. It was a larger automobile than previous Cadillac offerings, and their first four-cylinder production model. Priced at $2800 ($94,951 in 2023 dollars [1] ), [2] it can be seen as the first luxury car from the company.