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Archive for the ‘energy’ category: Page 207

Mar 26, 2021

PowerLight is hitting its targets with a power beaming system that uses lasers

Posted by in category: energy

PowerLight Technologies is turning wireless power transmission from science fiction into science fact… with frickin’ laser beams.

https://www.youtube.com/watch?v=J3GKVWcBLNU


Wireless power transmission has been the stuff of science fiction for more than a century, but now PowerLight Technologies is turning it into science fact … with frickin’ laser beams.

Continue reading “PowerLight is hitting its targets with a power beaming system that uses lasers” »

Mar 26, 2021

Leveraging the 5G network to wirelessly power IoT devices

Posted by in categories: energy, internet, surveillance

Researchers at the Georgia Institute of Technology have uncovered an innovative way to tap into the over-capacity of 5G networks, turning them into “a wireless power grid” for powering Internet of Things (IoT) devices that today need batteries to operate.

The Georgia Tech inventors have developed a flexible Rotman lens-based rectifying antenna (rectenna) system capable, for the first time, of millimeter-wave harvesting in the 28-GHz band. (The Rotman lens is key for beamforming networks and is frequently used in radar surveillance systems to see targets in multiple directions without physically moving the antenna system.)

But to harvest enough power to supply low-power devices at long ranges, large aperture antennas are required. The problem with large antennas is they have a narrowing field of view. This limitation prevents their operation if the antenna is widely dispersed from a 5G base station.

Mar 25, 2021

Suez Canal could be blocked for weeks

Posted by in categories: energy, transportation

A huge container ship blocking the Suez Canal like a “beached whale” may take weeks to free, the salvage company said, as officials stopped all ships entering the channel on Thursday in a new setback for global trade. The 400 metre Ever Given, almost as long as the Empire State Building is high, is blocking transit in both directions through one of the world’s busiest shipping channels for oil and refined fuels, grain and other trade linking Asia and Europe. The Suez Canal Authority (SCA) said earlier that nine tugs were working to move the vessel, which got stuck diagonally across the single-lane southern stretch of the canal on Tuesday morning amid high winds and a dust storm.

Mar 24, 2021

Dr. José Luis Cordeiro — Engineer, Economist, Futurist, Transhumanist, Author — ENERGY!!!

Posted by in categories: economics, energy, engineering, transhumanism

ENERGY!!! — Jose Luis Cordeiro, Engineer, Economist, Futurist, Transhumanist, Author, “The Death Of Death”


Dr. José Luis Cordeiro is an engineer, economist, futurist, transhumanist and author.

Continue reading “Dr. José Luis Cordeiro — Engineer, Economist, Futurist, Transhumanist, Author — ENERGY!!!” »

Mar 23, 2021

Here’s how we could mine the moon for rocket fuel

Posted by in categories: energy, space

😀


The Artemis program is supposed to usher in a new age of lunar mining, especially for water ice. But how, exactly?

Mar 23, 2021

EGEB: New York State’s first offshore wind farm leaps forward

Posted by in category: energy

New York approves a power cable for Deepwater Wind South Fork; Give Solar works with Habitat for Humanity to provide solar for homeowners.

Mar 22, 2021

The Battery That Will Finally Unlock Massless Energy Storage

Posted by in categories: energy, sustainability, transportation

It could revolutionize electric vehicles and aircraft.


In groundbreaking new research, scientists have made a structural battery 10 times better than in any previous experiment.

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Mar 22, 2021

Plasmonic nanoreactors regulate selective oxidation via energetic electrons and nanoconfined thermal fields

Posted by in categories: chemistry, energy, engineering, nanotechnology

When optimizing catalysis in the lab, product selectivity and conversion efficiency are primary goals for materials scientists. Efficiency and selectivity are often mutually antagonistic, where high selectivity is accompanied by low efficiency and vice versa. Increasing the temperature can also change the reaction pathway. In a new report, Chao Zhan and a team of scientists in chemistry and chemical engineering at the Xiamen University in China and the University of California, Santa Barbara, U.S., constructed hierarchical plasmonic nanoreactors to show nonconfined thermal fields and electrons. The combined attributes uniquely coexisted in plasmonic nanostructures. The team regulated parallel reaction pathways for propylene partial oxidation and selectively produced acrolein during the experiments to form products that are different from thermal catalysis. The work described a strategy to optimize chemical processes and achieve high yields with high selectivity at lower temperature under visible light illumination. The work is now published on Science Advances.

Catalysts

Ideal catalytic processes can produce desired target products without undesirable side effects under cost-effective conditions, although such conditions are rarely achieved in practice. For instance, high efficiency and high selectivity are antagonistic goals, where a relatively high temperature is often necessary to overcome the large barrier of oxygen activation to achieve high reactant conversion. Increasing the functional temperature can also lead to overoxidized and therefore additional byproducts. As a result, researchers must compromise between selectivity and efficiency. For instance, a given molecule typically requires diverse catalysts to generate different products, where each catalyst has different efficiency and selectivity. To circumvent any limitations, they can use surface plasmons (SPs) to redistribute photons, electrons and heat energy in space and time.

Mar 21, 2021

It looks like some kind of futuristic sound-weapon, but have no fear, it’s merely the latest in wave energy technology

Posted by in categories: energy, futurism

Mar 20, 2021

Researchers Debunk Decade-Old Photonics Myth, Demonstrate Practical Metal Nanostructures

Posted by in categories: energy, nanotechnology

Researchers at the University of Ottawa have debunked the decade-old myth of metals being useless in photonics – the science and technology of light – with their findings, recently published in Nature Communications, expected to lead to many applications in the field of nanophotonics.

“We broke the record for the resonance quality factor (Q-factor) of a periodic array of metal nanoparticles by one order of magnitude compared to previous reports,” said senior author Dr. Ksenia Dolgaleva, Canada Research Chair in Integrated Photonics (Tier 2) and Associate Professor in the School of Electrical Engineering and Computer Science (EECS) at the University of Ottawa.

“It is a well-known fact that metals are very lossy when they interact with light, which means they cause the dissipation of electrical energy. The high losses compromise their use in optics and photonics. We demonstrated ultra-high-Q resonances in a metasurface (an artificially structured surface) comprised of an array of metal nanoparticles embedded inside a flat glass substrate. These resonances can be used for efficient light manipulating and enhanced light-matter interaction, showing metals are useful in photonics.”