singularity

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singularity

(sing-gyŭ-la -ră-tee) A mathematical point at which space and time are infinitely distorted. Calculations predict that every black hole must contain a singularity: matter falling into a black hole will ultimately be compressed to infinite densities at a single point, and in such conditions our laws of physics, including quantum mechanics, must break down. One black-hole theorem – the principle of cosmic censorship – states that singularities are always concealed by an event horizon so that they cannot communicate their existence to an observer in our Universe. However, if a naked singularity – a singularity without an event horizon – is found, then some of our physical concepts will need reexamination.

singularity

[‚siŋ·gyə′lar·əd·ē]
(mathematics)
A point where a function of real or complex variables is not differentiable or analytic. Also known as singular point of a function.
(meteorology)
A characteristic meteorological condition which tends to occur on or near a specific calendar date more frequently than chance would indicate; an example is the January thaw.
(relativity)
A region of space-time where one or more components of the Riemann curvature tensor becomes infinite.

singularity

(1) See technology singularity.

(2) (Singularity) An experimental operating system from Microsoft for the x86 platform written almost entirely in C#, a .NET managed code language. Released in 2007, Singularity is a non-Windows research project.

Like Windows, there is only one address space, but for security and crash protection, it runs each OS or application process in an environment called a "software-isolated process" (SIP). Unlike other OS architectures, SIPs and the interprocess communications between them are analyzed for compliance at compile time. In addition, when a program is installed, it must include a manifest of its actions that comply with certain rules. For more information, visit http://research.microsoft.com/os/singularity.