digitaldc writes "Pollution in Beijing was so bad Friday the US embassy, which has been independently monitoring air quality, ran out of conventional adjectives to describe it, at one point saying it was 'crazy bad.' The embassy later deleted the phrase, saying it was an 'incorrect' description and it would revise the language to use when the air quality index goes above 500, its highest point and a level considered hazardous for all people by US standards. The hazardous haze has forced schools to stop outdoor exercises, and health experts asked residents, especially those with respiratory problems, the elderly and children, to stay indoors."

lilbridge writes "For over 1,500 years the Chinese have been using sticky rice as an ingredient in mortar, which has resulted in super strong buildings, many of which are still standing after hundreds of years. Scientists have been studying the sticky rice and lime mortar to unlock the secrets of its strength, and have just determined the secret ingredient that makes the mortar more stable and stronger. The scientists have also concluded that this mixture is the most appropriate for restoration of ancient and historic buildings, which means it is probably also appropriate for new construction as well."

Aryabhata writes "According to scientists, climate change and human activity have allowed bark beetle populations to soar. They decided to fight the beetles by using the 'nastiest, most offensive sounds' that they could think of. These sounds included recordings of Guns & Roses, Queen, Rush Limbaugh and manipulated versions of the insects' own sounds. The research project titled 'Beetle Mania' has concluded that acoustic stress can disrupt their feeding and even cause the beetles to kill each other."

ccktech writes "As reported by NPR and Chemistry world, the journal Science has a paper by David Ehre, Etay Lavert, Meir Lahav, and Igor Lubomirsky [note: abstract online; payment required to read the full paper] of Israel's Weizmann Institute, who have figured out a way to freeze pure water by warming it up. The trick is that pure water has different freezing points depending on the electrical charge of the surface it resides on. They found out that a negatively charged surface causes water to freeze at a lower temperature than a positively charged surface. By putting water on the pyroelectric material Lithium Tantalate, which has a negative charge when cooler but a positive change when warmer; water would remain a liquid down to -17 degrees C., and then freeze when the substrate and water were warmed up and the charge changed to positive, where water freezes at -7 degrees C."

Last year we ran the story of Yves Rossy and his DIY jetwings. Yves spent $190,000 and countless hours building a set of jet-powered wings which he used to cross the English Channel. Rossy's next goal is to cross the Strait of Gibraltar, from Tangier in Morocco and Tarifa on the southwestern tip of Spain. From the article: "Using a four-cylinder jet pack and carbon fibre wings spanning over 8ft, he will jump out of a plane at 6,500 ft and cruise at 130 mph until he reaches the Spanish coast, when he will parachute to earth." Update 18:57 GMT: mytrip writes: "Yves Rossy took off from Tangiers but five minutes into an expected 15-minute flight he was obliged to ditch into the wind-swept waters."

jedibfa writes "Las Cruces International Airport came alive with applause and cheers yesterday afternoon as John Carmack's Armadillo Aerospace took the first place prize for the Level 1 challenge of the Northrop Grumman Lunar Lander Challenge, winning $350,000 and bragging rights. Adding to the excitement of the day, shortly before completing their second qualifying flight, Armadillo Aerospace and The Rocket Racing League announced a joint program to develop a sub-orbital tourist vehicle that will fly out of the New Mexico-based Spaceport America and cost less than $100,000 per ticket. On Sunday, the team will have three opportunities to go for the Level 2 challenge that more closely approximates the required performance for a real lunar landing. Good luck, Armadillo Aerospace, both on Sunday and in your new endeavor!" We discussed preparations for the challenge last week. Several other readers have contributed additional coverage, including the Space Fellowship's live blog of the event, the website for Truezer0, another team participating in the challenge, and a VentureBeat article discussing the economic downturn in space exploration, and how the X-prize competitions figure in. Today's Level 2 challenge will be covered live via webcast.

theodp writes "eBay CEO Meg Whitman will accept a special Webby Lifetime Achievement Award next month on behalf of the eBay Community, which has 'permanently changed the way people connect, discover and interact with each other.' Perhaps by then, people will have forgotten how eBay enabled buyer 'Blazers5505' to hook up with sellers like 'oneclickshooting' just weeks before the worst mass shooting in modern US history, prompting eBay to issue a gun-parts-don't-kill-students-guns-and-ammo-do statement that showed little evidence of its celebrated commitment to social consciousness. CEO Whitman, who received $11.1M last year for her leadership efforts, has kept a low profile since tooting eBay's trust-and-safety horn for Wall Street analysts two days after the Va. Tech rampage."

phyrebyrd writes "How much money does it take to screw in a compact fluorescent lightbulb? About US$4.28 for the bulb and labor — unless you break the bulb. Then you, like Brandy Bridges of Ellsworth, Maine, could be looking at a cost of about US$2,004.28, which doesn't include the costs of frayed nerves and risks to health."