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  2. Jeffrey Smart - Wikipedia

    en.wikipedia.org/wiki/Jeffrey_Smart

    [1] Smart was born and educated in Adelaide where he worked as an Art teacher. ... 1979 Guiding Spheres II Archived 22 March 2012 at the Wayback ... ISBN 0-908131-29-1.

  3. SPHERES - Wikipedia

    en.wikipedia.org/wiki/SPHERES_(ISS_Experiment)

    SPHERES aboard ISS. The Synchronized Position Hold Engage and Reorient Experimental Satellite (SPHERES) are a series of miniaturized satellites developed by MIT's Space Systems Laboratory for NASA and US Military, to be used as a low-risk, extensible test bed for the development of metrology, formation flight, rendezvous, docking and autonomy algorithms that are critical for future space ...

  4. n-sphere - Wikipedia

    en.wikipedia.org/wiki/N-sphere

    All of the curves are circles: the curves that intersect 0,0,0,1 have an infinite radius (= straight line). In mathematics , an n -sphere or hypersphere is an ⁠ n {\displaystyle n} ⁠ - dimensional generalization of the ⁠ 1 {\displaystyle 1} ⁠ -dimensional circle and ⁠ 2 {\displaystyle 2} ⁠ -dimensional sphere to any non-negative ...

  5. Matrioshka brain - Wikipedia

    en.wikipedia.org/wiki/Matrioshka_brain

    A matrioshka brain [1] [2] is a hypothetical megastructure of immense computational capacity powered by a Dyson sphere. It was proposed in 1997 by Robert J. Bradbury (1956–2011 [ 3 ] ). It is an example of a class-B stellar engine , employing the entire energy output of a star to drive computer systems. [ 4 ]

  6. Unit sphere - Wikipedia

    en.wikipedia.org/wiki/Unit_sphere

    Some 1-spheres: ‖x‖ 2 is the norm for Euclidean space. In mathematics, a unit sphere is a sphere of unit radius: the set of points at Euclidean distance 1 from some center point in three-dimensional space.

  7. Spheres trilogy - Wikipedia

    en.wikipedia.org/wiki/Spheres_trilogy

    Globes: Spheres Volume II: Macrospherology (German: Sphären.Makrosphärologie. Band II. Globen) was published by Suhrkamp Verlag in 1999.At 1013 pages, [1] it is the longest book in the series and analyzes the philosophical foundations of the last 2000 years of human history, beginning with how the ancient Greeks represented the world as an orb and thereby began globalisation.

  8. Bloch sphere - Wikipedia

    en.wikipedia.org/wiki/Bloch_sphere

    In those points have coordinates (0,0,1) and (0,0,−1). An arbitrary spinor | ↗ {\displaystyle \left|\nearrow \right\rangle } on the Bloch sphere is representable as a unique linear combination of the two basis spinors, with coefficients being a pair of complex numbers; call them α and β .

  9. Brieskorn manifold - Wikipedia

    en.wikipedia.org/wiki/Brieskorn_manifold

    In mathematics, a Brieskorn manifold or Brieskorn–Phạm manifold, introduced by Egbert Brieskorn (1966, 1966b), is the intersection of a small sphere around the origin with the singular, complex hypersurface