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Fluorescent lamps in various embodiments. Since their introduction as a commercial product in 1939, many different types of fluorescent lamp have been introduced. Systematic nomenclature identifies mass-market lamps as to overall shape, power rating, length, color, and other electrical and illuminating characteristics.
Tubular bells first appeared between 1860 and 1870 in Paris. The Englishman John Harrington patented tubular bells made of bronze. Arthur Sullivan may have been the first composer to score for tubular bells in the orchestra, in 1886. In the early 20th century tubular bells were also incorporated into theater organs to produce effects.
A Tubular Gallery is a large diameter, round, tubular steel structure used to enclose a troughed conveyor belt. ... Common sizes are 8’-12’ diameter, with clear ...
A painting by British artist George Stubbs is expected to sell for up to £2 million ($2.5 million) in London next week, as it comes to auction for the first time in more than 50 years.. The 18th ...
This row has tube zithers of different sizes, each playing a different note, like tone-bars on a xylophone. [23] [24] Strings tuned to higher notes imitate the gamelan chimes, and lower note strings imitate gongs. [24] Another zither used in the chelempung ensemble is a three-string celempung indung. [23]
The Philadelphia 76ers' season might be cursed. Shams Charania of ESPN reported Thursday that Tyrese Maxey, one of the Sixers' stars, is expected to miss a "couple of weeks" with a right hamstring ...
Light tubes (also known as solar pipes, tubular skylights or sun tunnels [1]) are structures that transmit or distribute natural or artificial light for the purpose of illumination and are examples of optical waveguides. In their application to daylighting, they are also often called tubular daylighting devices, sun pipes, sun scopes, or ...
Costas, 72, called MLB games for 44 years, the vast majority of that with NBC. He started there in 1980 and over the years provides play-by-play for three World Series and 10 championship series.