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Archive for the ‘energy’ category: Page 273

Apr 28, 2019

Earthquake science could have predicted North Korea’s nuclear climbdown

Posted by in categories: energy, existential risks, nuclear weapons, policy, science

Just days after North Korea announced it was suspending its testing programme, scientists revealed that the country’s underground nuclear test site had partially collapsed. This assessment was based on data gathered from smaller earthquakes that followed North Korea’s biggest nuclear test in 2017. A new study published in Science has now confirmed the collapse using satellite radar imaging.

The collapse may have played a role in North Korea’s change in policy. If correct, and with the hindsight of this research, we might have speculated that the North Koreans would want to make such an offer of peace. This shows how scientific analysis normally reserved for studying natural earthquakes can be a powerful tool in deciphering political decisions and predicting future policy across the globe.

In fact, another unusual in South Korea in 2017 also has the potential to affect geopolitics, this time by changing energy policy. “Seismic shift” may be a cliche often used by journalists and policymakers to describe changing political landscapes, but these recent earthquakes along the Korean Peninsula remind us there can really be authentic links between and global affairs.

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Apr 27, 2019

The U.S. Military: Like the French at Agincourt?

Posted by in categories: business, energy, military

“The traditional model of U.S. military power is being disrupted, the way Blockbuster’s business model was amid the rise of Amazon and Netflix,” Brose writes. “A military made up of small numbers of large, expensive, heavily manned, and hard-to-replace systems will not survive on future battlefields, where swarms of intelligent machines will deliver violence at a greater volume and higher velocity than ever before.”


America risks a catastrophic defeat if it doesn’t radically change the way it thinks about war.

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Apr 24, 2019

Researchers dramatically clean up ammonia production and cut costs

Posted by in categories: energy, food

Ammonia—a colorless gas essential for things like fertilizer—can be made by a new process which is far cleaner, easier and cheaper than the current leading method. UTokyo researchers use readily available lab equipment, recyclable chemicals and a minimum of energy to produce ammonia. Their Samarium-Water Ammonia Production (SWAP) process promises to scale down ammonia production and improve access to ammonia fertilizer to farmers everywhere.

In 1900, the was under 2 billion, whereas in 2019, it is over 7 billion. This was fueled in part by rapid advancements in food production, in particular the widespread use of ammonia-based fertilizers. The source of this ammonia was the Haber-Bosch , and though some say it’s one of the most significant achievements of all time, it comes with a heavy price.

The Haber-Bosch process only converts 10 percent of its source material per cycle so needs to run multiple times to use it all up. One of these source materials is hydrogen (H2) produced using fossil fuels. This is chemically combined with nitrogen (N2) at temperatures of about 400–600 degrees Celsius and pressures of about 100–200 atmospheres, also at great energy cost. Professor Yoshiaki Nishibayashi and his team from the University of Tokyo’s Department of Systems Innovation hope to improve the situation with their SWAP process.

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Apr 24, 2019

Lightweight Velocité“Maglev” Hidden Motor Electric Bike

Posted by in categories: energy, transportation

Imagine that instead of adding a motor to a bicycle, parts of the bicycle are designed to function as the motor.

In this case the wheel rim contains the motor magnets and the frame houses the inductive coils. The inductive coils use energy from the battery (hidden in the frame downtube) to repel the magnets on the rim to make the wheel spin.

Lightweight calls this “Maglev Transrapid technology” and they claim that this Velocité eBike can go up to 100 kph (62 mph) with its 500 watts of power! They are currently limiting it to 45 kph (28 mph) to fall with in the limits of a speed pedelec.

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Apr 24, 2019

Developing roads that can generate power from passing traffic

Posted by in categories: energy, transportation

Circa 2017


Researchers are looking at advanced materials for roads and pavements that could generate electricity from passing traffic.

Engineers from Lancaster University are working on such as ‘piezolectric’ ceramics that when embedded in road surfaces would be able to harvest and convert vehicle vibration into .

The research project, led by Professor Mohamed Saafi, will design and optimise energy recovery of around one to two Megawatts per kilometre under ‘normal’ volumes—which is around 2,000 to 3,000 cars an hour.

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Apr 23, 2019

Researchers create artificial mother-of-pearl using bacteria

Posted by in categories: energy, materials

The strongest synthetic materials are often those that intentionally mimic nature.

One natural substance scientists have looked to in creating is , also known as mother-of-pearl. An exceptionally tough, stiff material produced by some mollusks and serving as their inner shell layer, it also comprises the outer layer of pearls, giving them their lustrous shine.

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Apr 23, 2019

Britain breaks coal-free power record over Easter weekend

Posted by in category: energy

UK sees longest continuous period without generating electricity from coal as temperatures soar.

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Apr 20, 2019

Researchers report high performance solid-state sodium-ion battery

Posted by in category: energy

Solid-state sodium-ion batteries are far safer than conventional lithium-ion batteries, which pose a risk of fire and explosions, but their performance has been too weak to offset the safety advantages. Researchers Friday reported developing an organic cathode that dramatically improves both stability and energy density.

The improved performance, reported in the journal Joule, is related to two key findings:

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Apr 20, 2019

Thermodynamic magic enables cooling without energy consumption

Posted by in categories: energy, physics

Physicists at the University of Zurich have developed an amazingly simple device that allows heat to flow temporarily from a cold to a warm object without an external power supply. Intriguingly, the process initially appears to contradict the fundamental laws of physics.

If you put a teapot of boiling water on the kitchen table, it will gradually cool down. However, its is not expected to fall below that of the table. It is precisely this everyday experience that illustrates one of the fundamental laws of physics—the second law of thermodynamics—which states that the entropy of a closed natural system must increase over time. Or, more simply put: Heat can flow by itself only from a warmer to a colder object, and not the other way round.

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Apr 18, 2019

Need more energy storage? Just hit ‘print’

Posted by in categories: energy, nanotechnology, transportation

Researchers from Drexel University and Trinity College in Ireland, have created ink for an inkjet printer from a highly conductive type of two-dimensional material called MXene. Recent findings, published in Nature Communications, suggest that the ink can be used to print flexible energy storage components, such as supercapacitors, in any size or shape.

Conductive inks have been around for nearly a decade and they represent a multi-hundred million-dollar market that is expected to grow rapidly into the next decade. It’s already being used to make the radiofrequency identification tags used in highway toll transponders, circuit boards in portable electronics and it lines car windows as embedded radio antennas and to aid defrosting. But for the technology to see broader use, conductive inks need to become more conductive and more easily applied to a range of surfaces.

Yury Gogotsi, Ph.D., Distinguished University and Bach professor in Drexel’s College of Engineering, Department of Materials Science and Engineering, who studies the applications of new materials in technology, suggests that the ink created in Drexel’s Nanomaterials Institute is a significant advancement on both of these fronts.

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