• A better single-photon emitter for quantum cryptography

    In a development that could make the advanced form of secure communications known as quantum cryptography more practical, researchers have demonstrated a simpler, more efficient single-photon emitter that can be made using traditional semiconductor processing techniques.

  • Mississippi towns build tornado-proof domes

    Following a devastating tornado two years ago, the town of Smithville, Mississippi, has started construction on a tornado-proof dome. The dome, to be built on the grounds of the local high school, will double as a gym and a storm shelter. Other towns in Mississippi have also begun their own dome projects.

  • Supercomputers allow for more realistic earthquake simulations

    A team of researchers has developed a highly scalable computer code that promises dramatically to cut both research times and energy costs in simulating seismic hazards throughout California and elsewhere. The team performed GPU-based benchmark simulations of the 5.4 magnitude earthquake that occurred in July 2008 below Chino Hills, near Los Angeles.

  • Oregon citizens preparing for the Big One

    A new study concludes that an earthquake of a magnitude 8.0 or above will strike off the coast of the state within the next fifty years. The Cascadia Fault, which runs from Northern California to British Columbia, Canada, causes a massive earthquake every 300 years or so, and the last time an earthquake hit the region was in the year 1700.

  • The opportunities offered by Smart Grid R&D

    The U.S. aging power grid is evolving into a modern, “smart” energy distribution network, and with these changes comes a host of challenges for the research and development community, two new reports say.

  • Making concrete “greener”

    Many factors determine the overall energy and environmental impact of concrete. Reducing the amount of portland cement, which reacts with water to bind all the sand, stone, and the other constituents of concrete as it hardens, provides the biggest opportunity. Portland cement manufacturing accounts for more than 5 percent of U.S. industrial carbon-dioxide emissions. In addition, the U.S. cement industry consumes 400 gigajoules of energy annually.

  • House Intelligence Committee to work on cybersecurity bill in camera

    The House Intelligence Committee will meet next week in order to draft a  cybersecurity bill, known as the Cyber Intelligence Sharing and Protection Act (CISPA), but will not allow media members or the public to sit in on meetings during the process.

  • Nuclear fusion could power a rocket to take humans to Mars

    NASA estimates a round-trip human expedition to Mars would take more than four years using current technology. The sheer amount of chemical rocket fuel needed in space would be extremely expensive — the launch costs alone would be more than $12 billion. Now, astronauts could be a step closer to our nearest planetary neighbor through a manipulation of nuclear fusion, the same energy that powers the sun and stars.

  • Renewable energy could economically replace fossil-based energy in Australia

    A carbon price of between AU$50 and AU$100 per ton of carbon dioxide would make coal-fired and gas-fired power in Australia less economical than renewable electricity. A new study says that all fossil-fuelled power stations in Australia’s National Electricity Market could be phased out and replaced economically and reliably with commercially available renewable energy technologies by increasing the carbon price to this “medium” level.

  • U.S. nuclear industry faces a wave of nuclear power station retirements

    A wave of U.S. nuclear power station retirements is on the horizon. The typical design life of a nuclear power plant is 40 years. There are 104 nuclear power plants in the United States, and their average age is 34 years — only a few years short of, and fast approaching, their design life. Almost 30 U.S. commercial and research reactors already have started decommissioning. A $400 million is regarded as the bargain basement price tag for cleaning up a single reactor.

  • Fully secure communication

    Can worldwide communication ever be fully secure? Quantum physicists believe they can provide secret keys using quantum cryptography via satellite. These physicists have, for the first time, successfully transmitted a secure quantum code through the atmosphere from an aircraft to a ground station.

  • Large robotic jellyfish to patrol the oceans

    The Office of Naval Research wants to place self-powering, autonomous machines in waters for the purposes of surveillance and monitoring the environment, in addition to other uses such as studying aquatic life, mapping ocean floors, and monitoring ocean currents. Researchers have built a device for that purpose — a life-like, autonomous robotic jellyfish the size and weight of a grown man, 5 foot 7 inches in length and weighing 170 pounds.

  • Engineers educate lawmakers about aging U.S. infrastructure

    Two hundred members of the American Society of Civil Engineering (ASCE) fanned out across Capitol Hill last month for the annual Legislative Fly-In with a message: U.S. infrastructure problems are solvable if we have strong leadership in Congress. The ASCE members highlighted the nation’s need to eliminate the backlog of infrastructure deficiencies, modernize roads, bridges, water systems, and energy grid – and reminded Congress that to promote commerce and protect public safety, welfare, and the environment, infrastructure investment is a priority issue.

  • Water treatment plant ozone upgrade wins civil engineering award

    The Ozone Upgrade and Expansion Project of the Alvarado Water Treatment Plant in San Diego, California, was named the winner of the American Society of Civil Engineers (ASCE) 2013 Outstanding Civil Engineering Achievement (OCEA) Award. In addition to expanding plant capacity by 67 percent, the city of San Diego converted from chlorine to ozone disinfection. The incorporation of ozone enabled the city to provide not only safer water with lower levels of carcinogenic disinfection by-products, but also water that is odorless and better tasting.

  • Americans support preparation for extreme weather, coastal challenges: survey

    The challenges posed by rising sea levels and increasingly severe storms will only intensify as more Americans build along the coasts. A just-released NOAA report predicts that already crowded U.S. coastlines will become home to an additional eleven million people by 2020. A Stanford survey finds that the majority of Americans support stronger coastal development codes. Among the most popular policy solutions: stronger building codes for new structures along the coast to minimize damage, and preventing new buildings from being built near the coast.