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The BL 13.5 inch Mk V gun [note 2] was a British heavy naval gun, introduced in 1912 as the main armament for the new super-dreadnought battleships of the Orion class.The calibre was 13.5 inches (343 mm) and the barrels were 45 calibres long at 607.5 inches (15.43 m).
The number of binary strings of length n without an odd number of consecutive 1 s is the Fibonacci number F n+1. For example, out of the 16 binary strings of length 4, there are F 5 = 5 without an odd number of consecutive 1 s—they are 0000, 0011, 0110, 1100, 1111.
Former channel number(s) Analog: 13 (VHF, 1957–2009) Digital: 46 (UHF, 1998–2009) Former affiliations. ABC (1957–1979) NET (per program, 1969–1970) Call sign ...
The number 666 is unusual for being a triangular number (that is, the sum of all numbers from 1 to 36), and also a doubly triangular number (because 36 is the sum of all numbers up to 8) and the eighth such number (in the series of 1, 6, 21, 55, 120, 231, 406, 666). [18] Nero is also revealed to be "the eighth" in power. [18]
The title references "the short time frame residents have to seek shelter" when a tornado is detected. [4] The film "follows four different families who are all dealing with their own issues" before the disaster strikes, [6] and through them weaves in social issues such as undocumented immigrants, abortion, and religious intolerance. [5]
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). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...
Artemis V is the fifth planned mission of NASA's Artemis program and the first crewed flight of the Blue Moon lander. [2] The mission will launch four astronauts on a Space Launch System rocket and an Orion to the Lunar Gateway and will be the third lunar landing of the Artemis program.
The atomic number determines the chemical properties of the atom, and the neutron number determines the isotope or nuclide. [7]: 4 The terms isotope and nuclide are often used synonymously, but they refer to chemical and nuclear properties, respectively. [7]: 4 Isotopes are nuclides with the same atomic number, but different neutron number.