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Rapidly-rotating 20 M ☉ stars take 9.3 million years to reach the red supergiant stage, while 20 M ☉ stars with slow rotation take only 8.1 million years. [98] These are the best estimates of Betelgeuse's current age, as the time since its zero age main sequence stage is estimated to be 8.0–8.5 million years as a 20 M ☉ star with no ...
.17 Hornady Magnum Rimfire, commonly known as the .17 HMR, is a rimfire rifle cartridge developed by Hornady [3] in 2002. It was developed by necking down a .22 Winchester Magnum Rimfire case to take a .17 caliber (4.5mm) projectile.
118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).
Design of a horse-drawn, 3.7 cm anti-tank gun (designated 3.7 cm Pak L/45) by Rheinmetall commenced in 1924 and the first guns were issued in 1928. [5] By the early 1930s, it was apparent that horse-drawn artillery was obsolescent, and the gun was modified for motorized transport by substituting magnesium-alloy wheels and pneumatic tires for the original spoked wooden wheels, allowing it to be ...
How It's Made is a documentary television series that premiered on January 6, 2001, on the Discovery Channel in Canada and Science in the United States. The program is produced in the Canadian province of Quebec by Productions MAJ, Inc. and Productions MAJ 2.
IEEE 802.1 is a working group of the IEEE 802 project of the IEEE Standards Association.. It is concerned with: [1] 802 LAN/MAN architecture; internetworking among 802 LANs, MANs and wide area networks
Barcelona (/ ˌ b ɑːr s ə ˈ l oʊ n ə / ⓘ BAR-sə-LOH-nə; Catalan: [bəɾsəˈlonə] ⓘ; Spanish: [baɾθeˈlona] ⓘ) is a city on the northeastern coast of Spain.It is the capital and largest city of the autonomous community of Catalonia, as well as the second-most populous municipality of Spain.
The gross domestic product (GDP) has risen since. In 2002, the GDP amounted to US$3.4 billion, [145] and increased to US$5.8 billion in 2005, [142] which amounts to an approximately 17.6% annual growth rate. Mali is a part of the "Franc Zone" (Zone Franc), which means that it uses the CFA franc.