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First logo used from 2010 to 2017. The 2b2t Minecraft server was founded in December 2010; it has run consistently without a reset since then. [6] [1] The founders are anonymous, [7] choosing to remain unknown or known only via usernames; the most prominent founder is commonly referred to as "Hausemaster".
Inversion of the X-ray transform is therefore of practical importance because it allows one to reconstruct an unknown density ƒ from its known attenuation data. In detail, if ƒ is a compactly supported continuous function on the Euclidean space R n, then the X-ray transform of ƒ is the function Xƒ defined on the set of all lines in R n by
The High-Energy X-ray Timing Experiment (HEXTE) is a scintillator array for the study of temporal and temporal/spectral effects of the hard X-ray (20 to 200 keV) emission from galactic and extragalactic sources. [8] The HEXTE consisted of two clusters each containing four phoswich scintillation detectors. Each cluster could "rock" (beam switch ...
Natural color X-ray photogram of a wine scene. Note the edges of hollow cylinders as compared to the solid candle. William Coolidge explains medical imaging and X-rays.. An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays.
This article describes the x-ray lasers in plasmas, only. The plasma x-ray lasers rely on stimulated emission to generate or amplify coherent , directional, high-brightness electromagnetic radiation in the near X-ray or extreme ultraviolet region of the spectrum, that is, usually from ~3 nanometers to several tens of nanometers (nm) wavelength .
Her X-1 is the prototype for the massive X-ray binaries although it falls on the borderline, ~2 M ☉, between high- and low-mass X-ray binaries. [2] An intermediate-mass X-ray binary (IMXB) is a binary star system where one of the components is a neutron star or a black hole. The other component is an intermediate mass star. [3]
A Chandra image of NGC 4485 and NGC 4490: two potential ULXs. In astronomy and astrophysics, an ultraluminous X-ray source (ULX) is less luminous than an active galactic nucleus but more consistently luminous than any known stellar process (over 10 39 erg/s, or 10 32 watts), assuming that it radiates isotropically (the same in all directions).
X, better known by its promotional title, X: The Man with the X-ray Eyes, is a 1963 American science fiction horror film in Pathécolor, produced and directed by Roger Corman, from a script by Ray Russell and Robert Dillon.