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Jul 5, 2018

Jupiter’s Moons Leave Signature Spots in Its Aurorae

Posted by in category: space

Despite being wildly different from Earth in almost every way, Jupiter does feature some familiar phenomena—including aurorae, what we call the Northern and Southern lights. But Jupiter’s aurorae have something Earth’s don’t: strange features caused by the Jovian moons.

Scientists analyzing data from the Juno spacecraft spotted some of these anomalies in action. They saw swirls and spots caused by Jupiter’s moons Io and Ganymede. And, as is often the case, things weren’t what they seemed from far away.

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Jul 5, 2018

Semiconductor quantum transistor opens the door for photon-based computing

Posted by in categories: computing, mobile phones, particle physics, quantum physics

Transistors are tiny switches that form the bedrock of modern computing; billions of them route electrical signals around inside a smartphone, for instance.

Quantum computers will need analogous hardware to manipulate quantum information. But the design constraints for this new technology are stringent, and today’s most advanced processors can’t be repurposed as quantum devices. That’s because quantum information carriers, dubbed qubits, have to follow different rules laid out by quantum physics.

Scientists can use many kinds of quantum particles as qubits, even the photons that make up . Photons have added appeal because they can swiftly shuttle information over long distances, and they are compatible with fabricated chips. However, making a quantum transistor triggered by light has been challenging because it requires that the photons interact with each other, something that doesn’t ordinarily happen on its own.

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Jul 5, 2018

Implanting diamonds with flaws offers key technology for quantum communications

Posted by in categories: computing, particle physics, quantum physics

Diamonds are prized for their purity, but their flaws might hold the key to a new type of highly secure communications.

Princeton University researchers are using to help create a communication network that relies on a property of subatomic particles known as their quantum state. Researchers believe such quantum information networks would be extremely secure and could also allow new quantum computers to work together to complete problems that are currently unsolvable. But scientists currently designing these networks face several challenges, including how to preserve fragile quantum information over long distances.

Now, researchers have arrived at a possible solution using synthetic diamonds.

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Jul 5, 2018

Mystery of Charles Darwin’s flying spiders solved — they harness electricity

Posted by in category: evolution

You might assume that evolution gave Charles Darwin enough to ponder during his five year voyage on The Beagle.

But of all the phenomena the naturalist encountered circumnavigating the globe, it was the flight of spiders which continued to puzzle him.

Darwin noticed that hundreds of spiders would inexplicably land on the Beagle even on a calm day without any wind to blow them on board.

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Jul 5, 2018

Bulletproof Skin

Posted by in categories: biotech/medical, materials

Scientists have injected spider DNA into goats to create a bulletproof material! #DCode

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Jul 5, 2018

A two-way approach against cancer

Posted by in category: biotech/medical

In a new study, researchers have attacked cancer stem cells on two fronts: glycolysis and oxidative phosphorylation.


According to a new study published in the journal Cell Metabolism, it might be possible to attack cancer by exploiting its own cellular metabolism rather than by employing drugs to kill cancerous cells directly [1].

Study summary

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Jul 5, 2018

A voltage breakthrough with perovskite solar cells to edge closer to commercialization

Posted by in categories: solar power, sustainability

A new technique has produced the highest performing inverted perovskite solar cell ever recorded. A team of researchers from Peking University and the Universities of Surrey, Oxford and Cambridge detail a new way to reduce an unwanted process called non-radiative recombination, where energy and efficiency is lost in perovskite solar cells.

The team created a technique called Solution-Process Secondary growth (SSG) which increased the voltage of inverted perovskite solar cells by 100 millivolts, reaching a high of 1.21 volts without compromising the quality of the solar cell or the electrical current flowing through a device. They tested the technique on a device which recorded a PCE of 20.9 percent, the highest certified PCE for inverted perovskite solar cells ever recorded.

Researchers are still working towards increasing efficiency and stability, prolonging lifetime and replacing toxic materials with safer ones. Researchers are also looking at the benefits of combining perovskites with other technologies, like silicon for tandem cells.

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Jul 5, 2018

Bacteria-powered solar cell converts light to energy, even under overcast skies

Posted by in categories: solar power, sustainability

University of British Columbia researchers have found a cheap, sustainable way to build a solar cell using bacteria that convert light to energy.

Their cell generated a current stronger than any previously recorded from such a device, and worked as efficiently in dim light as in bright light.

This innovation could be a step toward wider adoption of solar power in places like British Columbia and parts of northern Europe where overcast skies are common. With further development, these solar —called “biogenic” because they are made of living organisms—could become as efficient as the synthetic cells used in conventional solar panels.

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Jul 5, 2018

To thrive in tomorrow’s economy, workers need to boost lifelong cognitive abilities

Posted by in categories: economics, robotics/AI

As we develop robots with increasingly human-like capabilities, we should take a closer look at our own. Only by learning to overcome – or at least evade – our cognitive limitations can we have long and fruitful careers in the new global economy.”


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The Cognitive Limits of Lifelong Learning (Project Syndicate):

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Jul 5, 2018

Milky Way still bears the 10-billion-year-old scars of a galactic collision

Posted by in category: space

Galaxies collide with each other on a pretty regular basis. Our own Milky Way, for instance, has gobbled up dozens of smaller galaxies in the past, and Andromeda is currently hurtling towards us at 109 km (68 mi) per second. An international team of astronomers has now found evidence of a celestial smash-up between the Milky Way and an unknown dwarf galaxy that took place around eight to 10 billion years ago, and forever changed the face of our home galaxy.

According to the researchers, the evidence for this cosmic collision is all around us, from the bulge at the center of the Milky Way to the spread-out halo at the very fringes. The now-defunct dwarf galaxy has been dubbed the “Gaia Sausage,” after the ESA’s Gaia satellite used to plot out the trajectories of its stars, and the apparent shape those measurements revealed.

“We plotted the velocities of the stars, and the sausage shape just jumped out at us,” says Wyn Evans, co-author of the study. “As the smaller galaxy broke up, its stars were thrown out on very radial orbits. These Sausage stars are what’s left of the last major merger of the Milky Way.”

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