Mach

(redirected from Machen)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

Mach

Ernst . 1838--1916, Austrian physicist and philosopher. He devised the system of speed measurement using the Mach number. He also founded logical positivism, asserting that the validity of a scientific law is proved only after empirical testing

Mach

Machclick for a larger image
Speed of sound as a function of altitude.
Machclick for a larger image
Refers to a Mach number, or the ratio of the speed of an airplane to the speed of sound in the same atmospheric conditions. It is also used as a speed unit. The speed of sound, or Mach 1, is equal to 340.5 m/s, 661 knots, 761 miles per hour, or 1225.5 km/h at sea level under standard conditions, and it decreases with altitude. Above the tropopause (about 36,090 ft, or 11 km), Mach 1 is 295.5 m/s, 574 knots, 658 miles per hour, or 1063.2 km/h. Named after Ernst Mach (1838–1916).

Mach

An operating system kernel under development at Carnegie-Mellon University to support distributed and parallel computation. Mach is designed to support computing environments consisting of networks of uniprocessors and multiprocessors. Mach is the kernel of the OSF/1.
References in periodicals archive ?
Experience: Machen joined Arvest after its acquisition of Bear State Financial, the parent company of Bear State Bank.
| |Selected ties: Bridgend Athletic II v Cefn Cribbwr; Cardiff University v Pontyclun; Cefn Coed v Penallta II; Hirwaun v Llantwit Major; Llandaff v Treharris; Llandaff North v Oakdale; Machen v Taffs Well; Old Illtydians v Tonyrefail; Pentyrch v Cowbridge; Penygraig v Ferndale; Pontycymmer v Porthcawl; Pyle v Aberavon Green Stars; University of South Wales v Abercwmboi; Wattstown v Fairwater; Whiteheads v Gwernyfed.
But so is the association's own IREM Sustainability program, launched in partnership with Green Per Square Foot (greenpsf.com) during Machen's presidency.
Machen was born in Gwent, the borderland between England and Wales that, as Mark Valentine so insightfully puts it, 'was for him also a borderland between this world and another world of wonder and strangeness.' (7) In the first part of his autobiography Far Off Things (1922), Machen writes that
"He was a unique figure in literature and his short story The Great God Pan is regarded by Stephen King, the famous author, as the best horror story ever written," said Gary Crawford, of the Arthur Machen Society.
Machen said that the younger physicians have all done well with the system, but he is struggling.
Although Gawsworth's approach does not provide extended critical-theoretical perspectives on Machen's themes and techniques, his book has the dynamic of intimacy, since the author knew Machen and others whose acquaintance with Machen went back for more years than Gawsworth's.
Machen scans local news every morning on Utah's major daily news sites at www.desnews.com and www.sltrib.com and insists on double doses of national news at www.nytimes.com and www.washingtonpost.com
Professor Machen explored the relationship between a fixed Constitution and an
Gresham Machen may be the most interesting person in twentieth-century American Protestantism.
Its design eliminates the need for a gearbox, reducer, and cooling system, which helps keep the cost down - possibly below 845,000, says Jim Machen, the machine's inventor and a former professor in the engineering department at the University.
Machen, Arthurpseudonym of Arthur Llewellyn Jones (b.