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Sir Joseph Wilson Swan FRS (31 October 1828 – 27 May 1914) was an English physicist, chemist, and inventor.He is known as an independent early developer of a successful incandescent light bulb, and is the person responsible for developing and supplying the first incandescent lights used to illuminate homes and public buildings, including the Savoy Theatre, London, in 1881.
Therefore, a PAR 16 is 51 mm (2 in) in diameter, a PAR 20 is 64 mm (2.5 in) in diameter, PAR 30 is 95 mm (3.75 in) and a PAR 38 is 121 mm (4.75 in) in diameter. A package of four 60-watt light bulbs Multifaceted reflector (MR) Multifaceted reflector bulbs are usually smaller in size and run at a lower voltage, often 12 V.
The 100 known most prolific inventors based on worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.
So before Hollywood stars weepily give thanks for the life-changing award at the 97th Academy Awards on March 2 (ABC and Hulu, 7 EST/4 PST), let's explore who really makes the awards possible.
The 25-year-old Rast crowned her breakout season on Saturday by beating teammate Wendy Holdener for a Swiss 1-2 in the women’s slalom at the Alpine skiing world championships.
François-Pierre-Amédée Argand, known as Ami Argand (5 July 1750 – 14 [1] or 24 October 1803 [2]) was a Genevan physicist and chemist. He invented the Argand lamp , a great improvement on the traditional oil lamp .
Spotify Technology posted fiscal fourth quarter earnings on Tuesday, beating revenue expectations, and reported its first full-year profit.The audio giant also posted another strong quarter of ...
In 2022, a chandelier 47.7 m (156 ft) in height, 29.2 m (96 ft) in length and 28.3 m (93 ft) in width and weighing 16 tonnes was unveiled at the Assima Mall in Kuwait. [76] In Egypt, the largest and heaviest chandelier in the world, weighing 24,300 kg (53,572 lb) with a diameter of 22 m (72.2 ft) in four levels made by Asfour Crystal , was ...