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List of X-planes. Bell X-1-2. The X-planes are a series of experimental United States aircraft and rockets, used to test and evaluate new technologies and aerodynamic concepts. They have an X designator within the US system of aircraft designations, which denotes the experimental research mission. Not all US experimental aircraft have been ...
The 48 United States (excluding Alaska and Hawaii) are also referred to as the "Lower 48" or the "48 contiguous states". '48 is an alternate history novel by James Herbert. The 48 Laws of Power is a book by Robert Greene. The number 48 in ASCII is what you add to any single digit integer to convert to its ASCII value.
72 is the magic constant of the first non-normal, full prime reciprocal magic square in decimal, based on 1 / 17 in a 16 × 16 grid. [17][18] 72 is the sum between 60 and 12, the former being the second unitary perfect number before 6 (and the latter the smallest of only two sublime numbers). More specifically, twelve is also the number ...
The Republic XP-72 was an American prototype fighter-interceptor developed by Republic Aircraft as a progression of the P-47 Thunderbolt design. The XP-72 was designed around the Pratt & Whitney R-4360 Wasp Major 28-cylinder air-cooled radial engine with a supercharger mounted behind the pilot and driven by an extension shaft from the engine.
The naming procedure for large numbers is based on taking the number n occurring in 10 3n+3 (short scale) or 10 6n (long scale) and concatenating Latin roots for its units, tens, and hundreds place, together with the suffix -illion. In this way, numbers up to 10 3·999+3 = 10 3000 (short scale) or 10 6·999 = 10 5994 (long scale) may be named.
In finance, the rule of 72, the rule of 70[1] and the rule of 69.3 are methods for estimating an investment 's doubling time. The rule number (e.g., 72) is divided by the interest percentage per period (usually years) to obtain the approximate number of periods required for doubling. Although scientific calculators and spreadsheet programs have ...
The 6.5mm Creedmoor (6.5×48mm), [6] designated 6.5 Creedmoor by SAAMI, 6,5 Creedmoor by the C.I.P. [4] is a centerfire rifle cartridge introduced by Hornady in 2007. [7]It was developed by Hornady senior ballistics scientist Dave Emary in partnership with Dennis DeMille, the vice-president of product development at Creedmoor Sports, hence the name.
The Boeing F-15EX Eagle II is an American all-weather multirole strike fighter derived from the McDonnell Douglas F-15E Strike Eagle.The aircraft resulted from the U.S. Department of Defense's Cost Assessment and Program Evaluation (OSD CAPE) study in 2018 to recapitalize the aging F-15C/D fleet due to inadequate numbers of F-22s, delays in the F-35 program, and maintaining diversity in the U ...