• The burden of disease links ecology to economic development and growth

    According to conventional economic wisdom, the foundation of economic growth is in political and economic institutions; researchers argue that, in fact, vector-borne and parasitic diseases have substantial effects on economic development across the globe, and that these diseases are major drivers of differences in income between tropical and temperate countries; the burden of these diseases is, in turn, determined by underlying ecological factors: it is predicted to rise as biodiversity falls

  • Texas drought helps in demonstrating viability of drought-tolerant corn

    There is nothing like a couple years of drought to help determine the advances being made in drought-tolerant corn, and the historic drought in Texas in 2011 and in the Corn Belt in 2012 helped Texas A&M scientists show that different types of drought-tolerant corn performed well with far lower levels of irrigation

  • Winter storm hits Midwest, heading toward Northeast

    A powerful winter storm system hit the U.S. Midwest Wednesday, heading toward the states of the Northeast, where high winds and heavy snow have disrupted holiday travel, left tens of thousands without power, and were blamed in at least six deaths

  • Four-legged robotic mule now voice-controlled

    DARPA researchers demonstrated new advances in the Legged Squad Support System (LS3) four-legged robot’s control, stability, and maneuverability, including “Leader Follow” decision making, enhanced roll recovery, exact foot placement over rough terrain, the ability to maneuver in an urban environment, and verbal command capability

  • New approach to science education: bite-size YouTube mini-lessons

    A university of Michigan professor created a cheeky, perhaps even quirky, series of mini-lessons posted on YouTube; the series takes interesting facts about risk science — defined as the science of existing and emerging human health risks — and presents them in small, relatable, and easily digestible video segments to help answer the question, “Just how risky is this?”

  • Downloadable, printable gun technology may change gun-ownership landscape

    An Austin, Texas-based Defense Distributed says its mission is to create the WikiWeapon: a downloadable Internet file which will allow users to print their gun on a 3D printer; when the development process is complete, “any person has near-instant access to a firearm through the Internet,” the company says;the company adds: “This project might change the way we think about gun control and consumption. How do governments behave if they must one day operate on the assumption that any and every citizen has near instant access to a firearm through the Internet? Let’s find out”

  • Potentially devastating asteroid collision in 2040 not likely to happen

    A team of astronomers from the University of Hawaii’s Institute for Astronomy (IfA) have confirmed that the chance of asteroid 2011 AG5 impacting Earth in 2040 is no longer a significant risk — prompting a collective sigh-of-relief; previously, scientists estimated that the risk of this 140-meter-diameter (about the length of two American football fields) asteroid colliding with the Earth – and releasing about 100 megatons of energy — was as high as one in 500

  • Regulating geo-engineering schemes

    With policymakers and political leaders increasingly unable to combat global climate change, more scientists are considering the use of manual manipulation of the environment to slow warming’s damage to the planet; some legal scholars argue that the legal ramifications of this kind of geo-engineering need to be thought through in advance and a global governance structure put in place soon to oversee these efforts

  • Ninth-grader wins award for solar-powered water purification system

    Ninth-grader Deepika Kurup of Nashua High School in New Hampshire won $25,000 and named America’s Top Young Scientist for her innovative new water-purification system; her prototype, which harnesses solar energy to disinfect contaminated water, can help improve the lives of the 1.1 billion people around the world who lack access to clean drinking water

  • UV offers hope for safer drinking water

    Recent changes in the Environmental Protection Agency’s (EPA) surface water treatment rules mandate, among other things, more aggressive monitoring and control of various pathogens, notably including Cryptosporidium; this microbe, which can cause severe illness or death, is highly resistant to chlorine-based disinfection practices; as one means to reducing the threat, the EPA has called for treating water with ultraviolet (UV) radiation, which also serves as a “secondary barrier” to inactivate (prevent reproduction of) other key pathogens such as adenovirus and other viruses, as well as bacteria and parasites such as Giardia

  • Laws of traditional physics would foil Santa's effort to carry out mission

    Santa has 31 hours to visit 378 million Christian children; at the rate of 3.5 children per household, and assuming at least one good child per home, this comes to 108 million homes; if each child receives no more than a medium sized Lego set (two pounds), the sleigh would be carrying more than 500 thousand tons, not counting Santa himself; Santa would thus need at least 360,000 Reindeer to pull the sleigh; since Santa must visit 108 million homes in 31 hours, he will have to travel at 650 miles per second — 3,000 times the speed of sound; at that speed, the lead pair of Reindeer would absorb 14.3 quintillion joules of energy per second each and vaporize — indeed, the entire Reindeer team would be vaporized within 4.26 thousandths of a second; Santa himself would be subjected to forces of 17,500 Gs; a 250 pound Santa (which seems ludicrously slim) would be pinned to the back of the sleigh by 4,315,015 pounds of force, and be crushed

  • Army engineers develop new roadway threat detection system

    Explosives along roadways remain an unrelenting hazard for deployed soldiers; U.S. Army engineers have developed a system for detecting possible threats by identifying potential threat locations on unimproved roads; the system can perform region of interest cueing of threats at greater standoff distances, which can be further interrogated by the radar as the vehicle gets closer to the threat

  • Maintaining robust communications in congested and contested environments

    Radios are used for a wide range of tasks, from the most mundane to the most critical of communications, from garage door openers to military operations’ as the use of wireless technology proliferates, radios and communication devices often compete with, interfere with, and disrupt the operations of other devices; a new DARPA challenge is looking for innovative approaches that ensure robust communications in such congested and contested environments

  • What we know, and what we can do, about school shootings

    Since the early 1970s, school shootings at American elementary, secondary, and higher education institutions have been a painful reality for American society; after each incident — like the recent attack in Newtown, Connecticut — there is voluminous dialogue about what can be done to prevent the next such tragedy; a new study explores what we have learned about these tragic incidents, and what can be done to prevent them

  • Bricks made from paper waste

    Spanish researchers have mixed waste from the paper industry with ceramic material used in the construction industry; the result is a brick that has low thermal conductivity meaning it acts as a good insulator; its mechanical resistance, however, still requires improvement