• Flipper bridge could sort out Hong Kong-China traffic switch

    In Hong Kong, people drive on the left; in mainland China, they drive on the right; a Dutch architectural firm has proposed a solution for traffic between the two places: a flipper bridge

  • How safe are the Gulf oil dispersants?

    As of 14 June, more than 3.34 million liters of dispersant had been sprayed onto oil on the sea surface; at least a further 1.52 million liters had been pumped into the oil gushing from the stricken well some 1,500 meters below sea level; the use of such large volumes at depth is unprecedented, and marine biologists are concerned about possible toxicity to organisms, including shrimp and fish larvae

  • 110-foot concrete bridge withstands 8.0 earthquake simulation

    University of Nevada, Reno, researchers demonstrate a 110-foot long, 200-ton concrete bridge model that can withstand a powerful jolting, three times the acceleration of the disastrous 1994 magnitude 6.9 Northridge, California earthquake, and survive in good condition

  • It may be impossible to protect the North American grid against catastrophic events

    Making sure the North American grid continues to operate during high-impact, low-frequency (HILF) events — coordinated cyber and physical attacks, pandemic diseases, and high-altitude nuclear bomb detonations — is daunting task; the North American bulk power system comprises more than 200,000 miles of high-voltage transmission lines, thousands of generation plants, and millions of digital controls; more than 1,800 entities own and operate portions of the system, with thousands more involved in the operation of distribution networks across North America

  • Bill would give the president emergency power to critical networks under attack

    New bill would give the president emergency powers to protect critical private networks under attack; the president could order a patch or tell a cyber network to stop receiving incoming data from a particular country when critical infrastructure in the private sector such as the electrical grid or financial grid is threatened or attacked; the bill’s sponsors insisted it does not allow the government to take control of any private cyber-network

  • Coast Guard solicits private sector ideas on how to stem spill, deal with consequences

    “We’re adapting to an enemy that changes,” Coast Guard Adm. Thad Allen, the national incident commander for the oil spill, said; accordingly, in somewhat of an about-face, the Coast Guard last Friday began to solicit ideas from vendors, scientists, government laboratories, and nonprofits on how to stop, contain, and clean up the largest off-shore oil spill in U.S. history

  • 40,000-plus barrels per day pouring into Gulf

    Since the 20 April explosion of the Deepwater Horizon well, BP has insisted that the amount of oil being spilled into the gulf was no more than 5,000 barrels a day; U.S. government scientists yesterday corrected the company’s assertions, saying that amount is at least 40,000 barrels, if not more; the 1989 Exxon Valdez spilled 10.8 million gallons of oil into Alaska’s Prince William Sound; there are 42 gallons in a barrel of oil, so 40,000 barrels mean 1,680,000 gallons; this means that since 20 April, the BP well has released oil into the Gulf at a rate of one Exxon Valdez every 6.5 days; in other words, between 20 April and 3 June, when the well’s riser was cut, a quantity of oil equal to seven Exxon Valdez has been spilled into the Gulf

  • Solar-powered robot crawls on aging power lines to inspect the grid

    The U.S. grid infrastructure has two characteristics: it is vast and it is aging; now there is a cost-effective way to examine thousands of miles of power lines: a new, solar-powered, 140-pound, six-foot-long robot; the robot uses rollers to clamp onto and move along a line; it can maneuver past towers, known as pylons, using cables built into newer towers or retrofitted onto old ones

  • Aussies revamp cyberdefense strategy

    The Australian federal government has decided to stop supporting AusCERT in favor of a new computer emergency response team more focused on providing an early warning system for utilities, banks, and other critical infrastructure firms

  • BP's cost-cutting approach made well vulnerable, left company unprepared

    Safety upgrades are critical but could mean higher prices for oil and gas; to cut costs, BP decided to install a continuous set of threaded casing pipes from the wellhead down to the bottom of its well; this leaves one blind to leaks that sneak up around the casing pipe, and the long string gives gas more time to percolate into the well; a preferred — and costlier — alternative in high-pressure deepwater is a “liner” design in which drillers install and then cement in place a short string of casing in the lower reaches of the well before casing the rest of the well

  • DOE puts raw oil spill data on new Web page

    A new Department of Energy Web page provides numbers on how much oil is being recovered, and schematics of the technology involved in trying the cap the well and the Gulf clean-up

  • Lookingglass named finalist for Best Cyber Security Company

    Lookingglass Cyber Solutions’s ScoutVision allows corporations to monitor networks and infrastructure they are not in control of, but rely upon for day-to-day operations; the company is finalist in Maryland Incubator of the Year Awards program

  • BP's oil spill depleting oxygen in Gulf, decimating Gulf's abundant sea life

    The magnitude of the BP oil spill disaster becomes clearer; scientists confirm the massive oil spill spread more than forty nautical miles from the disaster site and at a depth of 3,300 feet; scientists have said that in addition to being nearly impossible to clean up, the oil plumes could deplete oxygen in the Gulf, decimating its abundant sea life

  • Attention to design details will make buildings withstand hurricanes

    One example of design ideas architects in hurricane-prone regions should follow: design buildings with square, hexagonal, or even octagonal floor plans with roofs of multiple slopes such as a four-sloped hip roof; these roofs perform better under wind forces than the gable roofs with two slopes; gable roofs are common only because they are cheaper to build; research and testing demonstrate that a 30-degree roof slope will have the best results

  • Purdue University membrane technology could help cleanup oil spills

    Purdue University researchers developed a new type of membrane which may be used to clean up oil spills such as BP’s massive spill in the Gulf of Mexico; the technology could be used for a variety of other applications, including water purification and industrial uses