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Toscana
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Yellow in my eyes
London Oct 12th 2018
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Stephen Hawking feared gene-edited superhumans would kill us all https://nyp.st/2yIjTD2
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Cats are intended to teach us that not everyone in nature has a purpose. - Garrison Keillor

#lego #toy_photographers #legography #caturday #womenintoyphotography

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The vision starts with helping humans stay safe at sea, but could put fully robo-boats into action as ferries in just a few years. https://wrd.cm/2yDJahW
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Traveling eyes
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Worries linger as Facebook withholds stolen searches & checkins https://tcrn.ch/2yEuFug
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Child's eye
Childhood means simplicity. Look at the world with the child's eye - it is very beautiful.
----------------------Kailash Satyarthi

#pakistan #punjab #portrait #portraiture #portraitphotography #nikonshooters #nikond810
+BTP Editors' Choice (Top Photo page)
+BTP Portrait Pro
#hqspportraits +HQSP Portraits curated by +Heiko Köster +Christian Madsen
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#mma news Tyron Woodley talks hand injury and says he’ll “probably” fight in January
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My London eyes
Oct 15th 2018
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Mind Games: Craft Killer Experiences with 7 Lessons from Cognitive Psychology by Sarah Weise
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This is the third shot of have of this tree on three separate trips - i'll get one when there is no snow one day, that will make a cool comparison.

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Rewiring the Brain to Fight Epilepsy

Researchers have discovered a novel treatment for reducing seizure activity in the brains of rodents, a discovery they hope might one day help people living with epilepsy.
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in Denmark
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North Sydney
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How a dragonfly's brain - with only 16 neurons - is designed to kill.

"It's brain coordinates complex information between its eyes (360-degree vision) and its wings (independently controlled), turning hunting into a simple reflex."

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New Simulation Creates "Pulsar in a Box" | NASA Goddard
Scientists studying what amounts to a computer-simulated "pulsar in a box" are gaining a more detailed understanding of the complex, high-energy environment around spinning neutron stars, also called pulsars. The model traces the paths of charged particles in magnetic and electric fields near the neutron star, revealing behaviors that may help explain how pulsars emit gamma-ray and radio pulses with ultraprecise timing.

A pulsar is the crushed core of a massive star that exploded as a supernova. The core is so compressed that more mass than the Sun's squeezes into a ball no wider than Manhattan Island in New York City. This process also revvs up its rotation and strengthens its magnetic and electric fields.

Various physical processes ensure that most of the particles around a pulsar are either electrons or their antimatter counterparts, positrons. To trace the behavior and energies of these particles, the researchers used a comparatively new type of pulsar model called a "particle in cell" (PIC) simulation.

The PIC technique lets scientists explore the pulsar from first principles, starting with a spinning, magnetized neutron star. The computer code injects electrons and positrons at the pulsar's surface and tracks how they interact with the electric and magnetic fields. It's computationally intensive because the particle motions affect the fields and the fields affect the particles, and everything is moving near the speed of light.

The simulation shows that most of the electrons tend to race outward from the magnetic poles. Some medium-energy electrons scatter wildly, even heading back to the pulsar.

The positrons, on the other hand, mostly flow out at lower latitudes, forming a relatively thin structure called the current sheet. In fact, the highest-energy positrons here—less than 0.1 percent of the total—are capable of producing gamma rays similar to those detected by NASA's Fermi Gamma-ray Space Telescope, which has discovered 216 gamma-ray pulsars.

The simulation ran on the Discover supercomputer at NASA's Center for Climate Simulation at NASA's Goddard Space Flight Center in Greenbelt, Maryland, and the Pleiades supercomputer at NASA's Ames Research Center in Silicon Valley, California. The model actually tracks "macroparticles," each of which represents many trillions of electrons or positrons.

Credit: NASA's Goddard Space Flight Center
Music: "Reaching for the Horizon" and "Leaving Earth" from Killer Tracks
Duration: 2 minutes, 53 seconds
Release Date: October 10, 2018

+NASA Goddard
+NASA's Ames Research Center
+NASA
+Killer Tracks

#NASA #Astronomy #Space #Science #Stars #Pulsars #Neutron #Astrophysics #Physics #Cosmos #Universe #Model #Simulation #PIC #Computer #Supercomputer #Pleiades #Goddard #GSFC #Greenbelt #Maryland #Ames #MountainView #California #UnitedStates #STEM #Education #HD #Video
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Hawking's final book offers brief answers to big questions - Stephen Hawking's final work, which tackles issues from the existence of God to the potential for time travel, was launched on Monday by his children, who helped complete the book after the British astrophysics giant's death.

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Early Alzheimer's Brain Pathology Linked to Psychiatric Symptoms

Earliest stages of the brain degeneration associated with Alzheimer’s disease are linked to psychiatric symptoms including anxiety, depression, and sleep disturbances.

The research is in Journal of Alzheimer’s Disease. (full access paywall)

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Discovery of a simple mechanism for color detection - Color vision, consisting of ocular color detection, is achieved with complicated neural mechanisms in the eyes. Researchers from Osaka City University in Japan have found color detection with a simple mechanism in the fish pineal organ, an extraocular photosensitive organ on the brain surface. They have published their results in Proceedings of the National Academy of Sciences

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How the Brain Detects, Identifies and Acts on Taste

Study provides new insight into how the brain rapidly detects and discriminates between potentially nutritious and toxic substances.

The research is in eNeuro. (full access paywall)
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