06 NOV 2014 by ideonexus

 Matrioshka Brains

Matrioshka Brains (MB)1 are megascale computers constructed out of microelectronic and/or nanoscale components.  MB may be constructed as shells around a star (internally powered Matrioshka Brains: IPMB) or may be constructed independently of a star if large amounts of power are harvested from stars in other locations and beamed to the MB (externally powered Matrioshka Brains: EPMB).  A third variant, (self-powered Matrioshka Brains: SPMB) which generates power via controlled n...
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06 JUL 2012 by ideonexus

 The Bootes Void

In the course of a redshift survey of galaxies brighter than R approximately equal to 16.3, 133 redshifts were measured in three fields, each separated by roughly 35 deg from the other two. If the galaxies in these fields were distributed uniformly, the combination of a galaxian luminosity function and the magnitude limits predicts that the distribution of redshifts should peak near 15,000 km/s. In fact, only one galaxy of the 133 was observed with a redshift in the 6000 km/s interval centere...
Folksonomies: wonder astronomy
Folksonomies: wonder astronomy
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An inconceivably massive region of space extremely sparsely populated with galaxies, strangely spherical in shape.