Archive for the ‘energy’ category

Jun 19, 2019

Navy Patents Sound Weapon

Posted by in categories: energy, military, space

Imagine a day when a submarine could blast a target to smithereens using nothing more than acoustic energy. That’s the idea behind a recently granted U.S. Navy patent for a cavitation weapon. The powerful weapon would use sonar to generate “acoustic remote cavitation,” i.e. a big pressure bubble, that would destroy everything from torpedoes to mines. As the patent describes:

*A method is disclosed of generating a predetermined field of cavitation around a remote target in an underwater environment. The method includes the steps of identifying a remote target location, generating at least two acoustic beams, each at a high power output, from an underwater acoustic source, and controlling the generated acoustic beams to intersect with each other at the remote target location and thereby create a destructive cavitation field at the intersection of the beams. The acoustic source and target can be located in unconfined underwater space and at a distance of at least 100 m apart. *

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Jun 16, 2019

Russian Hackers Tried to Attack U.S. Power Grid

Posted by in categories: cybercrime/malcode, energy, government

A hacking group linked to the Russian government has been attempting to breach the U.S. power grid, Wired reports.

Security experts from the non-profit group the Electric Information Sharing and Analysis Center (E-ISAC) and security firm Dragos tracked the hackers — and warn that the group has been probing the grid for weaknesses, searching for ways that they could access U.S. systems.

Even though there are no signs that the group has succeeded in accessing the power grid, the attacks still have experts worried. And that’s partly because of the history of this particular hacking group: Xenotime, who created the infamous Triton malware. In late 2017, Triton attacked critical infrastructure such as the industrial control systems used in power plants, and it could have been used to cause massive destruction through tampering with power plant controls. That lead it to be labeled the “world’s most murderous malware.”

Jun 16, 2019

Nothing Is Solid & Everything Is Energy – Scientists Explain The World of Quantum Physics

Posted by in categories: energy, quantum physics

What we perceive as our physical material world, is really not physical or material at all, in fact, it is far from it. This has been proven time and time again by multiple Nobel Prize (among many other scientists around the world) winning physicists, one of them being Niels Bohr, a Danish Physicist who made significant contributions to understanding atomic structure and quantum theory.

“If quantum mechanics hasn’t profoundly shocked you, you haven’t understood it yet. Everything we call real is made of things that cannot be regarded as real.” – Niels Bohr

At the turn of the nineteenth century, physicists started to explore the relationship between energy and the structure of matter. In doing so, the belief that a physical, Newtonian material universe that was at the very heart of scientific knowing was dropped, and the realization that matter is nothing but an illusion replaced it. Scientists began to recognize that everything in the Universe is made out of energy.

Jun 16, 2019

Self-cleaning Clothes Made Possible By Nano-enhanced Textile

Posted by in categories: energy, nanotechnology

Circa 2016

Not a big fan of laundry day? Well what if you could wash your clothes just by stepping into the sunshine? Thanks to researchers at RMIT University in Melbourne, a self-cleaning textile could make that possible in the very near future. With the help of special nanostructures grown directly into the fabric, these new textiles could degrade organic matter like dirt, dust, and sweat when exposed to a concentrated light source.

To achieve this effect, the nanostructures used by the RMIT University team are made copper and silver. These metals are great at absorbing visible light, and when they’re exposed to light from the sun or even a light bulb, the nanostructures react with increased energy that creates “hot electrons”.

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Jun 14, 2019

Electron (or ‘hole’) pairs may survive effort to kill superconductivity

Posted by in categories: energy, materials

Scientists seeking to understand the mechanism underlying superconductivity in “stripe-ordered” cuprates—copper-oxide materials with alternating areas of electric charge and magnetism—discovered an unusual metallic state when attempting to turn superconductivity off. They found that under the conditions of their experiment, even after the material loses its ability to carry electrical current with no energy loss, it retains some conductivity—and possibly the electron (or hole) pairs required for its superconducting superpower.

“This work provides circumstantial evidence that the stripe-ordered arrangement of charges and magnetism is good for forming the charge-carrier pairs required for superconductivity to emerge,” said John Tranquada, a physicist at the U.S. Department of Energy’s Brookhaven National Laboratory.

Tranquada and his co-authors from Brookhaven Lab and the National High Magnetic Field Laboratory at Florida State University, where some of the work was done, describe their findings in a paper just published in Science Advances. A related paper in the Proceedings of the National Academy of Sciences by co-author Alexei Tsvelik, a theorist at Brookhaven Lab, provides insight into the theoretical underpinnings for the observations.

Continue reading “Electron (or ‘hole’) pairs may survive effort to kill superconductivity” »

Jun 14, 2019

Lunar-Polar Propellant Mining Outpost (LPMO): Affordable Exploration and Industrialization

Posted by in categories: energy, space

The Lunar Polar Gas-Dynamic Mining Outpost (LGMO) (see quad chart graphic) is a breakthrough mission architecture that promises to greatly reduce the cost of human exploration and industrialization of the Moon. LGMO is based on two new innovations that together solve the problem of affordable lunar polar ice mining for propellant production. The first innovation is based on a new insight into lunar topography: our analysis suggests that there are large (hundreds of meters) landing areas in small (0.5−1.5 km) nearpolar craters on which the surface is permafrost in perpetual darkness but with perpetual sunlight available at altitudes of only 10s to 100s of meters. In these prospective landing sites, deployable solar arrays held vertically on masts 100 m or so in length (lightweight and feasible in lunar gravity) can provide nearly continuous power.

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Jun 12, 2019

Wireless devices go battery-free with new communication technique

Posted by in categories: energy, internet, surveillance

This technology is also used for surveillance.

We might be one step closer to an Internet-of-things reality.

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Jun 10, 2019

For hydrogen power, mundane materials might be almost as good as pricey platinum

Posted by in categories: energy, engineering, transportation

As anyone who has purchased jewelry can attest, platinum is expensive. That’s tough for consumers but also a serious hurdle for a promising source of electricity for vehicles: the hydrogen fuel cell, which relies on platinum.

Now a research team led by Bruce E. Koel, a professor of biological and chemical engineering at Princeton University, has opened a door to finding far cheaper alternatives. In a paper published April 4 in the journal Nature Communications, the researchers reported that a chemical compound based on hafnium worked about 60 percent as effectively as -related materials but at about one-fifth the cost.

“We hope to find something that is more abundant and cheaper to catalyze reactions,” said Xiaofang Yang, principal scientist at HiT Nano Inc. and visiting collaborator at Princeton who is working with Koel on the project.

Continue reading “For hydrogen power, mundane materials might be almost as good as pricey platinum” »

Jun 10, 2019

Proton transport ‘highway’ may pave way to better high-power batteries

Posted by in categories: energy, transportation

Researchers at Oregon State University have found that a chemical mechanism first described more than two centuries ago holds the potential to revolutionize energy storage for high-power applications like vehicles or electrical grids.

The research team led by Xiulei (David) Ji of OSU’s College of Science, along with collaborators at the Argonne National Laboratory, the University of California Riverside, and the Oak Ridge National Laboratory, are the first to demonstrate that diffusion may not be necessary to transport ionic charges inside a hydrated solid-state structure of a battery electrode.

“This discovery potentially will shift the whole paradigm of high-power electrochemical energy storage with new design principles for electrodes,” said Xianyong Wu, a postdoctoral scholar at OSU and the first author of the article.

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Jun 10, 2019

The 3D ‘microbatteries’ that could power ultra-low energy wearables

Posted by in categories: energy, wearables

Image a battery that can be charged in seconds.

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