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Nov 19, 2020

Going beyond the anti-laser may enable long-range wireless power transfer

Posted by in categories: biotech/medical, computing, mobile phones

Ever since Nikola Tesla spewed electricity in all directions with his coil back in 1891, scientists have been thinking up ways to send electrical power through the air. The dream is to charge your phone or laptop, or maybe even a healthcare device such as a pacemaker, without the need for wires and plugs. The tricky bit is getting the electricity to find its intended target, and getting that target to absorb the electricity instead of just reflect it back into the air—all preferably without endangering anyone along the way.

These days, you can wirelessly charge a smartphone by putting it within an inch of a charging station. But usable long-range wireless power transfer, from one side of a room to another or even across a building, is still a work in progress. Most of the methods currently in development involve focusing narrow beams of energy and aiming them at their intended target. These methods have had some success, but are so far not very efficient. And having focused electromagnetic beams flying around through the air is unsettling.

Now, a team of researchers at the University of Maryland (UMD), in collaboration with a colleague at Wesleyan University in Connecticut, have developed an improved technique for wireless power transfer technology that may promise long-range power transmission without narrowly focused and directed energy beams. Their results, which widen the applicability of previous techniques, were published Nov. 17, 2020 in the journal Nature Communications.

Nov 19, 2020

Scientists Discover a ‘One in a Million’ Super-Earth Near the Centre of the Galaxy

Posted by in category: space

A ‘year’ here lasts almost twice as long as Earth.

Nov 19, 2020

Supercomputer Aurora 21 will map the human brain, starting in 2021

Posted by in categories: neuroscience, supercomputing

Aurora 21 will help the US keep pace among the other nations who own the fastest supercomputers. Scientists plan on using it to map the connectome of the human brain.

Nov 19, 2020

Dark Matter Candidate Could Generate String-Like Entities in Exotic Materials

Posted by in categories: cosmology, mathematics, particle physics, quantum physics

Calculations show how theoretical ‘axionic strings’ could create odd behavior if produced in exotic materials in the lab.

A hypothetical particle that could solve one of the biggest puzzles in cosmology just got a little less mysterious. A RIKEN physicist and two colleagues have revealed the mathematical underpinnings that could explain how so-called axions might generate string-like entities that create a strange voltage in lab materials.

Axions were first proposed in the 1970s by physicists studying the theory of quantum chromodynamics, which describes how some elementary particles are held together within the atomic nucleus. The trouble was that this theory predicted some bizarre properties for known particles that are not observed. To fix this, physicists posited a new particle—later dubbed the axion, after a brand of laundry detergent, because it helped clean up a mess in the theory.

Nov 19, 2020

Electric Ferrari — time to give classic cars a new lease of life?

Posted by in category: transportation

From time to time, Fully Charged receives an offer that is too good to refuse, and when a long-term friend of the show offered us his electrified Ferrari 308, we didn’t hesitate.

This is part of an ongoing collaboration between Fully Charged and Electrek.

Continue reading “Electric Ferrari — time to give classic cars a new lease of life?” »

Nov 19, 2020

Researchers have succeeded in directly observing the formation and interaction of highly ionized krypton plasma

Posted by in categories: cosmology, particle physics

The last decade has been marked by a series of remarkable discoveries identifying how the universe is composed. It is understood that the mysterious substance dark matter makes up 85% of the matter in the universe. Observable matter in the universe consists of ionized particles. Thus, a profound understanding of ionized matter and its interaction with light, could lead to a deeper understanding of the relationships at play that formed the universe. While ionized matter, or plasma, is relatively easy to generate in the lab, studying it is extremely challenging as methods that can capture ionization states and density are virtually non-existant.

In a new paper published in Light Science & Application, a team of scientists has succeeded in directly observing the formation and interaction of highly ionized krypton plasma using femtosecond coherent ultraviolet light and a novel four-dimensional model.

Nov 19, 2020

Dipole Drive for space propulsion | Robert Zubrin at Breakthrough Discuss 2018

Posted by in categories: chemistry, space travel

Circa 2018

The speed of space travel is currently limited by the quantity of chemical fuel that spacecraft must carry. Robert Zubrin, President of Pioneer Astronautics, introduces the dipole drive — a new propulsion system which uses ambient space plasma as propellant, thereby avoiding the need to carry its own.

Nov 19, 2020

Scientists produce rare diamonds in minutes at room temperature

Posted by in categories: energy, materials

I guess they can now make the diamond sword from minecraft! 😃

While traditional diamonds are formed over billions of years deep in the Earth where extreme pressures and temperatures provide just the right conditions to crystalize carbon, scientists are working on more expedient ways of forging the precious stones. An international team of researchers has succeeded in whittling this process down to mere minutes, demonstrating a new technique where they not only form quickly, but do so at room temperature.

Continue reading “Scientists produce rare diamonds in minutes at room temperature” »

Nov 19, 2020

Man Becomes Instant Millionaire When A Meteorite Hits His Home

Posted by in categories: habitats, space

Is this a case where money falls from the heavens!

This may start a craze where people chase after meteors! 😃

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Nov 19, 2020

Russia developing new weapon to replace Iskander tactical missile system

Posted by in category: military

Russia is currently carrying out scientific work on the concept of advanced rocket artillery armament. Efforts are simultaneously underway for upgrading the capabilities of existing weapon systems. Today the Russian artillery troops are receiving upgraded Tornado-G medium-caliber multiple launch rocket systems and modernized Tornado-S launchers, the general said.

The Iskander-M is unique and its upgraded potential “has been tapped by less than a half,” Russia’s Missile Forces and Artillery chief stressed.