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Virtual Steak: Beef Is 10X More Environmentally Costly Than Other Meat, Says Study

Easy metrics like 'it takes a gallon of gas to make a pound of beef' or 'it takes 140 liters of...

Mammoth And Mastodon Weren't So Nomadic

Mammoths and mastodons, the famously fuzzy relatives of elephants that lived in the American midwest...

Natural Fluctuation: Global Warming 'Pause' Since 1998 Explained

Statistical analysis of average global temperatures between 1998 and 2013 shows that the slowdown...

Probiotics Linked To Improved Blood Pressure - Review

Eating probiotics regularly may modestly improve your blood pressure, according to a new review...

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A new global geologic map of Mars is the most thorough representation of the "Red Planet's" surface, bringing together observations and scientific findings from four orbiting spacecraft that have been acquiring data for more than 16 years.

An MIT robotic device is worn around the wrist and basically works like two extra fingers adjacent to the pinky and thumb.

A novel control algorithm enables it to move in sync with the wearer's fingers to grasp objects of various shapes and sizes. Wearing the robot, a user could use one hand to, for instance, hold the base of a bottle while twisting off its cap. The robot, which the MIT researchers have dubbed "supernumerary robotic fingers," consists of actuators linked together to exert forces as strong as those of human fingers during a grasping motion.


Ultra-short X-ray flashes have enabled scientists to watch electrons jumping between the fragments of exploding molecules. The study reveals up to what distance a charge transfer between the two molecular fragments can occur, marking the limit of the molecular regime.

The technique used can show the dynamics of charge transfer in a wide range of molecular systems. Such mechanisms play a role in numerous chemical processes, including photosynthesis.


A multicenter team of researchers report that in a phase III clinical trial, a combination drug therapy cures chronic hepatitis C in the majority of patients co-infected with both HIV and hepatitis C.

"In many settings, hepatitis C is now a leading cause of death among HIV co-infected patients," says Mark Sulkowski, M.D., medical director of the Johns Hopkins Infectious Disease Center for Viral Hepatitis and professor of medicine at the Johns Hopkins University School of Medicine. Approximately one-third of HIV patients in the United States have hepatitis C, with an estimated 7 million co-infected patients worldwide.


Researchers have successfully used a new and potentially safer method to stimulate ovulation in women undergoing IVF treatment.  One in six couples in the UK experiences infertility, and 48,147 women underwent IVF treatment in 2011. 


The Appalachian mountain chain runs along a nearly straight line from Alabama to Newfoundland— 1,500 miles - except for a curious bend in Pennsylvania and New York.

Why it bends has been a mystery. When the North American and African continental plates collided more than 300 million years ago, the North American plate began folding and thrusting upwards as it was pushed westward into the dense underground rock structure—in what is now the northeastern United States. The dense rock created a barricade, forcing the Appalachian mountain range to spring up.  Yet the bend was cause for speculation.