Sign of the times

ekim68

Mike
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Stress study shows graying hair is reversible


History is littered with anecdotal evidence of the relationship between stress and graying hair, from Marie Antionette's overnight transformation following her capture, to US presidents taking on more salt than pepper during their tenure. A new study has produced first-of-a-kind scientific evidence of this connection, identifying proteins in human hairs that seem to drive this process, while also demonstrating how it might even be reversed.
 

ekim68

Mike
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Quantum birds: Shedding light on the mechanism of magnetic sensing in birds


Humans perceive the world around them with five senses—vision, hearing, taste, smell and touch. Many other animals are also able to sense the Earth's magnetic field. For some time, a collaboration of biologists, chemists and physicists centered at the Universities of Oldenburg (Germany) and Oxford (UK) have been gathering evidence suggesting that the magnetic sense of migratory birds such as European robins is based on a specific light-sensitive protein in the eye. In the current edition of the journal Nature, this team demonstrate that the protein cryptochrome 4, found in birds' retinas, is sensitive to magnetic fields and could well be the long-sought magnetic sensor.
 

ekim68

Mike
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Genome study discovers ancient coronavirus epidemic 20,000 years ago


An incredible new study, published in the journal Current Biology, is presenting evidence to suggest a major coronavirus outbreak struck humans in East Asia around 20,000 years ago. The international team of scientists found distinctive genomic marks indicating local populations faced a long viral epidemic that only finally dissipated a few thousand years ago.
 

ekim68

Mike
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As Stick Shifts Fade Into Obscurity, Collectors See Opportunity


They’re not extinct yet, but the end is coming for stick-shift cars.

For the 1980 model year, 35 percent of cars produced for sale in the United States had manual transmissions, according to the Environmental Protection Agency. Today, the share is about 1 percent. And just 18 percent of American drivers can drive a stick, according to U.S. News and World Report.

This relative scarcity has collectors and enthusiasts salivating. They are pushing up the values of late-model sports cars with a clutch pedal and, in the process, creating a new class of collectible cars.
 

ekim68

Mike
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57,727

World's first transient pacemaker dissolves in the body after use


In a breakthrough that could greatly ease the burden for patients recovering from cardiac surgery, scientists have developed a new type of temporary pacemaker that never needs to be removed. The world-first device does away with lead and batteries in favor of fully biocompatible materials, and is therefore able to harmlessly dissolve in the body once its served its purpose.
 

ekim68

Mike
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Quantum-computing startup Rigetti to offer modular processors


Rigetti's computers rely on a technology called a "transmon," which is based on a superconducting wire loop linked to a resonator. It's the same qubit technology used by large competitors like Google and IBM. The state of one transmon can influence that of its neighbors during calculations, an essential feature of quantum computing. To an extent, the topology of connections among transmon qubits is a key contributor to the machine's computational power.
 

ekim68

Mike
Thread Starter
Joined
Jul 8, 2003
Messages
57,727

ekim68

Mike
Thread Starter
Joined
Jul 8, 2003
Messages
57,727

Thinking about selling your Echo Dot—or any IoT device? Read this first


Like most Internet-of-things (IoT) devices these days, Amazon’s Echo Dot gives users a way to perform a factory reset so, as the corporate behemoth says, users can “remove any... personal content from the applicable device(s)” before selling or discarding them. But researchers have recently found that the digital bits that remain on these reset devices can be reassembled to retrieve a wealth of sensitive data, including passwords, locations, authentication tokens, and other sensitive data.
 

ekim68

Mike
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Joined
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57,727

California tests off-the-grid solutions to power outages


When a wildfire tore through Briceburg nearly two years ago, the tiny community on the edge of Yosemite National Park lost the only power line connecting it to the electrical grid.

Rather than rebuilding poles and wires over increasingly dry hillsides, which could raise the risk of equipment igniting catastrophic fires, the nation’s largest utility decided to give Briceburg a self-reliant power system.
 

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