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High-altitude wind energy shows promise
Wind turbines hovering high in the air and tethered to the ground, like kites, have the potential to generate huge amounts of electricity, based on a recent wind availability study. Researchers pinpointed tracts of the atmosphere ideal for locating airborne wind energy (AWE) devices, which convert kinetic energy from wind into electricity. Recently published research shows that there are enough areas usable by airborne turbines to produce several terawatts of electric power annually — more than enough needed to meet worldwide demands. More than twenty companies are developing various versions of the technology, with over 100 related patents filed in the United States alone.
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U.S.-Mexico border security barriers affect movement of animals
Security barriers in national parks on the U.S.-Mexican border which aim to deter illegal migrants are affecting the movements of some native animal species while not necessarily restricting the movement of humans, according to new research.
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Conventional theories about Titanic disaster are flawed
Previously it had been suggested that the seas which sank the famous cruise ship — which set off on its maiden voyage 102 years last week (Thursday 10 April 2014) — had an exceptional number of icebergs caused by lunar or solar effects. A new study finds, however, that the Titanic not unlucky for sailing in a year with an unusually high number of icebergs. In fact, the risk of icebergs higher now than it was in 1912.
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U.K. scientific groups say A-level sciences grading reform is flawed
As the U.K Office of Qualifications and Examinations Regulations (OFQUAL) announces the separation of marks for practical science from core A-level grades, a leading partnership of scientific societies, the Science Community Representing Education (SCORE), which includes the Institute of Physics (IOP), has expressed its disappointment and concern. The reform presents a hurried large scale change that will affect both school reporting procedures and university admissions processes, including how students’ attainment in science is measured and recorded.
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British intelligence agency promotes cybersecurity education
As part of its national cybersecurity strategy to “derive huge economic and social value from a vibrant, resilient, and secure cyberspace,” the United Kingdom will issue certifications to colleges and universities offering advanced degrees in cybersecurity. The British intelligence agency, Government Communications Headquarters(GCHQ), has notified various institutions to apply for certification by 20 June 2014. Students who complete the approved courses will carry a “GCHQ-certified degree.”
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Making ethanol without corn or other plants
Ethanol today is produced at high-temperature fermentation facilities that chemically convert corn, sugarcane, and other plants into liquid fuel. Growing crops for biofuel, however, requires thousands of acres of land and vast quantities of fertilizer and water. In some parts of the United States, it takes more than 800 gallons of water to grow a bushel of corn, which, in turn, yields about three gallons of ethanol. Stanford scientists have created a copper-based catalyst that produces large quantities of ethanol from carbon monoxide gas at room temperature.
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UAV-mounted high-speed wireless networks for remotely deployed troops
Missions in remote, forward operating locations often suffer from a lack of connectivity to tactical operation centers and access to valuable intelligence, surveillance, and reconnaissance (ISR) data. The assets needed for long-range, high-bandwidth communications capabilities are often unavailable to lower echelons due to theater-wide mission priorities. DARPA’s Mobile Hotspots program makes progress toward the goal of providing 1 Gb/s communications backbone to deployed units.
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U.S. Cyber Challenge opens registration for Cyber Quests competition
Last week the Council on CyberSecurity, through the U.S. Cyber Challenge (USCC) initiative, announces the open registration of its qualifying Cyber Quests competition — a challenging online contest open to high school and college students, as well as professionals, who will compete against their peers across the country for an invitation to one of four Cyber Camps being offered this summer. The online competition and camps are designed to improve cybersecurity skills, provide training and mentorship from leading instructors and highlight skills for potential employers.
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Spectrum Challenge: more robust, resilient, reliable radio communications
Reliable wireless communications today requires careful allocation of specific portions of the electromagnetic spectrum to individual radio networks. While pre-allocating spectrum is effective in benign environments, radios remain vulnerable to inadvertent interference from other emitters and intentional jamming by adversaries. On 19-20 March 2014, fifteen teams from around the country demonstrated new ways to help overcome these challenges by participating in the final event of the DARPA Spectrum Challenge — a national competition to develop advanced radio techniques capable of communicating in congested and contested electromagnetic environments without direct coordination or spectrum preplanning.
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New consortium dedicated to developing nuclear arms control verification technologies
A consortium of thirteen universities and eight national laboratories, led by the University of Michigan and including the Los Alamos National Laboratory as a partner, has been awarded a $25 million grant by the NNSA. The consortium is dedicated to the research and development (R&D) of nuclear arms control verification technologies, including nuclear safeguards effectiveness.
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Cutting edge, animatronic mannequin to test CB protective suits, equipment
The U.K. Defense Science and Technology Laboratory (DSTL) has taken delivery of a new robotic mannequin which will be used to test chemical and biological (CB) protective suits and equipment for the U.K.’s Armed Forces. The “Porton Man” uses state of the art technology and is able to walk, march, run, sit, kneel and even lift its arms as if to sight a weapon just like an infantry soldier.
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Scale model WWII-era plane flies with fuel from the sea
U.S. Navy researchers demonstrated proof-of-concept of novel technologies developed for the recovery of carbon dioxide (CO2) and hydrogen (H2) from seawater and conversion to a liquid hydrocarbon fuel. Fueled by a liquid hydrocarbon — a component of NRL’s novel gas-to-liquid (GTL) process which uses CO2 and H2 as feedstock — the research team demonstrated sustained flight of a radio-controlled (RC) P-51 replica of the legendary Red Tail Squadron, powered by an off-the-shelf (OTS) and unmodified two-stroke internal combustion engine.
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DARPA launches Biological Technologies Office
DARPA has established a new technology office — the Biological Technologies Office (BTO) — which will merge biology, engineering, and computer science to harness the power of natural systems for national security. With the establishment of the new office last week, biology takes its place among the core sciences that represent the future of defense technology.
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Bangladesh tops list of countries at risk from sea level rise
Scientists say that see levels may rise by up to the feet by 2100.The implications of this would have drastic consequences for nearly all coastal nations, but the consensus is that Bangladesh will be the hardest hit by the change. Leading Bangladeshis say that since Bangladesh produces less than 0.3 percent of the emissions driving climate change, it would unjust for Bangladesh to rely on its own meager resources to solve this problem. One solution they offer: fifty million Bangladeshis (out of a population of 163 million) should be allowed to move to and resettle in the countries which produce the bulk of greenhouse gasses.
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More stringent climate policies mean hard choices for coal plant operators
Limiting climate change to 2°C means shutting down coal power plants — an unpopular proposition for coal power companies. A new study shows, however, that delaying climate policies could prove even worse for power plant owners. The reason: new power plants being built now, especially in China and India, are built to run for 30-50 years, paying off only after years of operation. Stringent climate policies, however, could make the cost of emission so high that coal power generation is no longer competitive, leaving new power plants sitting idle and their owners and investors with huge losses — a problem known as stranded capacity.
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More headlines
The long view
Encryption Breakthrough Lays Groundwork for Privacy-Preserving AI Models
In an era where data privacy concerns loom large, a new approach in artificial intelligence (AI) could reshape how sensitive information is processed. New AI framework enables secure neural network computation without sacrificing accuracy.
AI-Controlled Fighter Jets May Be Closer Than We Think — and Would Change the Face of Warfare
Could we be on the verge of an era where fighter jets take flight without pilots – and are controlled by artificial intelligence (AI)? US R Adm Michael Donnelly recently said that an upcoming combat jet could be the navy’s last one with a pilot in the cockpit.
The Potential Impact of Seabed Mining on Critical Mineral Supply Chains and Global Geopolitics
The potential emergence of a seabed mining industry has important ramifications for the diversification of critical mineral supply chains, revenues for developing nations with substantial terrestrial mining sectors, and global geopolitics.
AI and the Future of the U.S. Electric Grid
Despite its age, the U.S. electric grid remains one of the great workhorses of modern life. Whether it can maintain that performance over the next few years may determine how well the U.S. competes in an AI-driven world.
Using Liquid Air for Grid-Scale Energy Storage
New research finds liquid air energy storage could be the lowest-cost option for ensuring a continuous power supply on a future grid dominated by carbon-free but intermittent sources of electricity.
Enhanced Geothermal Systems: A Promising Source of Round-the-Clock Energy
With its capacity to provide 24/7 power, many are warming up to the prospect of geothermal energy. Scientists are currently working to advance human-made reservoirs in Earth’s deep subsurface to stimulate the activity that exists within natural geothermal systems.