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Astronomers answer key question: How common are habitable planets?

Astronomers answer key question: How common are habitable planets? | The virtual life | Scoop.it
UC Berkeley and University of Hawaii astronomers analyzed all four years of Kepler data in search of Earth-size planets in the habitable zones of sun-like stars, and then rigorously tested how many planets they may have missed.

 

A major question is whether planets suitable for biochemistry are common or rare in the universe. Small rocky planets with liquid water enjoy key ingredients for biology. Astronomers now used the National Aeronautics and Space Administration Kepler telescope to survey 42,000 Sun-like stars for periodic dimmings that occur when a planet crosses in front of its host star. They found 603 planets, 10 of which are Earth size and orbit in the habitable zone, where conditions permit surface liquid water. They measured the detectability of these planets by injecting synthetic planet-caused dimmings into Kepler brightness measurements. They find that 22% of Sun-like stars harbor Earth-size planets orbiting in their habitable zones. The nearest such planet may be within 12 light-years.

 

"It's been nearly 20 years since the discovery of the first extrasolar planet around a normal star. Since then we have learned that most stars have planets of some size and that Earth-size planets are relatively common in close-in orbits that are too hot for life," said Andrew Howard, a former UC Berkeley post-doctoral fellow who is now on the faculty of the Institute for Astronomy at the University of Hawaii. "With this result we've come home, in a sense, by showing that planets like our Earth are relatively common throughout the Milky Way galaxy."


Via Dr. Stefan Gruenwald
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The virtual life
About immersive selves and augmented reality
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Min avatar heter Apmel

Min avatar heter Apmel | The virtual life | Scoop.it
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In Computers We Trust? | Quanta Magazine

In Computers We Trust? |  Quanta Magazine | The virtual life | Scoop.it
As the role of computers in pure mathematics grows, researchers debate their reliability.
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Scientists Program Largest Swarm of Robots Ever | Science | WIRED

Scientists Program Largest Swarm of Robots Ever | Science | WIRED | The virtual life | Scoop.it
Alone, the simple little robot can’t do much, shuffling around on three vibrating tooth-pick legs. But working with 1,000 or more like-minded fellow bots, it becomes part of a swarm that can self-assemble into any two-dimensional shape. These are some of the first steps toward creating huge herds of tiny robots that form larger structures—including…
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3D sketching system ‘revolutionizes’ design interaction and collaboration | KurzweilAI

3D sketching system ‘revolutionizes’ design interaction and collaboration | KurzweilAI | The virtual life | Scoop.it
University of Montreal researchers present their Hyve-3D system at the SIGGRAPH 2014 conference this week (credit: University of Montreal) University of
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Journal of Virtual Worlds Research

Journal of Virtual Worlds Research | The virtual life | Scoop.it
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The End of Work | Radio Open Source with Christopher Lydon

The End of Work | Radio Open Source with Christopher Lydon | The virtual life | Scoop.it
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Why Probability in Quantum Mechanics is Given by the Wave Function Squared | Sean Carroll

Why Probability in Quantum Mechanics is Given by the Wave Function Squared | Sean Carroll | The virtual life | Scoop.it
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Quasiparticles carry entanglement to near infinite speeds

Quasiparticles carry entanglement to near infinite speeds | The virtual life | Scoop.it
In a new experimental system, the concept of "light cones" doesn't apply.
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Consciousness Is Everywhere

The belief in human exceptionalism, so strongly rooted in the Judeo-Christian view of the world, flies in the face of all evidence for the structural and behavioral continuity between animals and people.
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The Reinterpretation of Cold Dark Matter as a Bose-Einstein Condensate

The Reinterpretation of Cold Dark Matter as a Bose-Einstein Condensate | The virtual life | Scoop.it
Newly published research signifies the reinterpretation of cold dark matter, opening up the possibility that it could be regarded as a very cold quantum fluid governing the formation of the structure of the Universe.

Tom Broadhurst, an Ikerbasque researcher at the UPV/EHU's Department of
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Consciousness is a Mathematical Pattern: Max Tegmark at TEDxCambridge 2014 - YouTube

As a physicist, Max Tegmark sees people as "food, rearranged." That makes his answer to complicated questions like "What is consciousness?" simple: It's just...
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Giant space telescope could detect hints ot life on exoplanets | KurzweilAI

Giant space telescope could detect hints ot life on exoplanets | KurzweilAI | The virtual life | Scoop.it
An artist’s concept of the ATLAST telescope (as would be seen under construction in space), featuring a segmented mirror 20 meters across. Credit:
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Google's Ray Kurzweil on the moment when computers will become conscious

Google's Ray Kurzweil on the moment when computers will become conscious | The virtual life | Scoop.it
Google hired the noted inventor and futurist to build artificial intelligence that can think like a human. His vision is a computer with a structure modeled on the human brain, giving it a capacity for abstract thought.
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Defending scientism: mathematics is a part of science

Defending scientism: mathematics is a part of science | The virtual life | Scoop.it
[Editor’s Note: This essay is part of Scientia Salon’s special “scientism week” and could profitably be read alongside other entries on the same topic on this site, such as this one by John Shook a...
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Siri’s Inventors Are Building a Radical New AI That Does Anything You Ask | Enterprise | WIRED

Siri’s Inventors Are Building a Radical New AI That Does Anything You Ask | Enterprise | WIRED | The virtual life | Scoop.it
Viv was named after the Latin root meaning live. Its San Jose, California, offices are decorated with tsotchkes bearing the numbers six and five (VI and V in roman numerals). Ariel Zambelich When Apple announced the iPhone 4S on October 4, 2011, the headlines were not about its speedy A5 chip or improved camera. Instead…
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The Language of Visual Storytelling in 360 Virtual Reality. | RealVision.ae Knowledge Base and stereoscopic 3D Blog

The Language of Visual Storytelling in 360 Virtual Reality. | RealVision.ae Knowledge Base and stereoscopic 3D Blog | The virtual life | Scoop.it
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A New Chip Functions Like a Brain, IBM Says

A New Chip Functions Like a Brain, IBM Says | The virtual life | Scoop.it
The processor, named TrueNorth, may eventually excel at calculations that stump today’s supercomputers.
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The Universe, “Branes,” and the Science of Multiple Dimensions

The Universe, “Branes,” and the Science of Multiple Dimensions | The virtual life | Scoop.it
How a needle, a shower curtain, and a New England clam explain the possibility of parallel universes.

“The mystery of being is a perman
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'Quantum Cheshire Cat' observed

'Quantum Cheshire Cat' observed | The virtual life | Scoop.it
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With many-worlds, all quantum mechanics is local

With many-worlds, all quantum mechanics is local | The virtual life | Scoop.it
But that doesn't make for evidence that parallel universes exist.
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‘The Character of Physical Law’: Richard Feynman’s Legendary Course Presented at Cornell, 1964

‘The Character of Physical Law’: Richard Feynman’s Legendary Course Presented at Cornell, 1964 | The virtual life | Scoop.it
Lecture One, The Law of Gravitation:

Feynman ended the first of his famous 1964 Messenger Lectures at Cornell University, a talk entitled 'The Law of Gravitation, an Example of Physical Law.' (See above.) The lectures were intended by Feynman as an introduction, not to the fundamental laws of nature, but to the very nature of such laws.
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11 of the Weirdest Solutions to the Fermi Paradox

11 of the Weirdest Solutions to the Fermi Paradox | The virtual life | Scoop.it
Most people take it for granted that we have yet to make contact with an extraterrestrial civilization. Trouble is, the numbers don’t add up. Our Galaxy is so old that every corner of it should have been visited many, many times over by now. No theory to date has satisfactorily explained away this Great Silence, so it’s time to think outside the box. Here are eleven of the weirdest solutions to the Fermi Paradox.
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The truth about free will: New answers to humanity’s biggest riddle

The truth about free will: New answers to humanity’s biggest riddle | The virtual life | Scoop.it
Do we control our brains? Our do our brains control us? Research sheds light on this age-old question VIDEO
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Have We Been Interpreting Quantum Mechanics Wrong This Whole Time? | Science | WIRED

Have We Been Interpreting Quantum Mechanics Wrong This Whole Time? | Science | WIRED | The virtual life | Scoop.it
For nearly a century, “reality” has been a murky concept. The laws of quantum physics seem to suggest that particles spend much of their time in a ghostly state, lacking even basic properties such as a definite location and instead existing everywhere and nowhere at once. Only when a particle is measured does it suddenly…
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Rethinking the Placebo Effect: How Our Minds Actually Affect Our Bodies

Rethinking the Placebo Effect: How Our Minds Actually Affect Our Bodies | The virtual life | Scoop.it
The startling physiological effects of loneliness, optimism, and meditation.

In 2013, Neil deGrasse Tyson hosted a mind-bending debate on
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A Mathematical Proof That The Universe Could Have Formed Spontaneously From Nothing — The Physics arXiv Blog — Medium

A Mathematical Proof That The Universe Could Have Formed Spontaneously From Nothing — The Physics arXiv Blog — Medium | The virtual life | Scoop.it
Cosmologists assume that natural quantum fluctuations allowed the Big Bang to happen spontaneously. Now they have a mathematical proof
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