06 MAR 2015 by ideonexus
Paradigm Shift: Everyone Will have a Timeline
In 10 years, every human connected to the Internet will have a timeline. It will contain everything we’ve done since we started recording, and it will be the primary tool with which we administer our lives. This will fundamentally change how we live, love, work, and play. And we’ll look back at the time before our feed started — before Year Zero — as a huge, unknowable black hole.
This timeline — beginning for newborns at Year Zero — will be so intrinsic to life that it will quic...
1 The ubiquitous tracking of so much data on everyone means we are entering a new age.
24 JAN 2015 by ideonexus
A Black Hole is a Star Forever Falling Inward
He talked to us about the new theory of black holes which he had then just worked out. The idea of a black hole was one of the most dramatic consequences of Einstein's theory of gravity. According to Einstein's equations, a massive star at the end of its life, when it has exhausted its nuclear fuel, continues to contract and grow smaller and denser under the influence of its own gravitation. After the nuclear fuel is used up, the star goes into a state of gravitational collapse. All parts of ... 1 
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notes24 JAN 2015 by ideonexus
A Black Hole is a Star Forever Falling Inward
He talked to us about the new theory of black holes which he had then just worked out. The idea of a black hole was one of the most dramatic consequences of Einsteins theory of gravity. According to Einstein's equations, a massive star at the end of its life, when it has exhausted its nuclear fuel, continues to contract and grow smaller and denser under the influence of its own gravitation. After the nuclear fuel is used up, the star goes into a state of gravitational collapse. All parts of t...24 JAN 2015 by ideonexus
A Black Hole is a Star Forever Falling Inward
He talked to us about the new theory of black holes which he had then just worked out. The idea of a black hole was one of the most dramatic consequences of Einstein's theory of gravity. According to Einstein's equations, a massive star at the end of its life, when it has exhausted its nuclear fuel, continues to contract and grow smaller and denser under the influence of its own gravitation. After the nuclear fuel is used up, the star goes into a state of gravitational collapse. All parts of ...23 APR 2013 by ideonexus
Entropy as a Purpose in Life
To the best of our knowledge, these tool use puzzle and
social cooperation puzzle results represent the rst successful completion of such standard animal cognition tests using
only a simple physical process. The remarkable spontaneous emergence of these sophisticated behaviors from such a
simple physical process suggests that causal entropic forces
might be used as the basis for a general—and potentially
universal—thermodynamic model for adaptive behavior.
Namely, adaptive behavior might ... 1 notes
notesResearchers have created an AI that self-directs itself into activities like balancing a ball on a stick or buying stocks low and selling high by simply programming it with the desire to maximize the "future histories" available to it (ie. if the ball drops or the AI runs out of money, then the possible futures are reduced to one in the simulation). This suggests a thermodynamic relationship between intelligence and disorder; that we might seek to maximize the entropy in our lives by staying alive, making money, getting educated, or otherwise increase the number of future histories available to us.
04 JUN 2012 by ideonexus
The Physics of Black Hole Creation
Let me describe briefly how a black hole might be created. Imagine a star with a mass 10 times that of the sun. During most of its lifetime of about a billion years the star will generate heat at its center by converting hydrogen into helium. The energy released will create sufficient pressure to support the star against its own gravity, giving rise to an object with a radius about five times the radius of the sun. The escape velocity from the surface of such a star would be about 1,000 kilom...Folksonomies: physics black hole
Folksonomies: physics black hole
1 notes
notesAt a point in the star's collapse, it's escape velocity exceeds the speed of light.
01 JAN 2012 by ideonexus
Black Holes are Separate Universes
In fact, our own universe is very likely itself a vast black hole. We have no
knowledge of what lies outside our universe. This is true by definition, but also
because of the properties of black holes. Objects that reside in them cannot
ordinarily leave them. In a strange sense, our universe may be filled with objects that are not here. They are not separate universes. They do not have the mass of
our universe. But in their separateness and their isolation they are autonomous
universes. 1 notes
notesA strange conceptual idea, that implies our own Universe is a Black Hole as well.
13 DEC 2011 by ideonexus
Stable Orbits are Impossible in More Than Three Dimensions
If one assumes that a few hundred million years in stable orbit are necessary for planetary life to evolve, the number of space dimensions is also fixed by our existence. That is because, according to the laws of gravity, it is only in three dimensions that stable elliptical orbits are possible. Circular orbits are possible in other dimensions, but those, as Newton feared, are unstable. In any but three dimensions even a small disturbance, such as that produced by the pull of the other planet...The force of gravity gets weaker the more dimensions you add to the Universe, making stable planetary orbits impossible.
