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Sprinters Punch Ground for Speed

August 28, 2014 | by Southern Methodist Univ. | Comments

The world’s fastest sprinters have unique gait features that account for their ability to achieve fast speeds, according to two new studies. The new findings indicate that the secret to elite sprinting speeds lies in the distinct limb dynamics sprinters use to elevate ground forces upon foot-ground impact.

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'Sailing Stones' of Death Valley Caught in the Act

August 29, 2014 7:00 am | by Scripps Institution of Oceanography | Comments

Racetrack Playa is home to an enduring Death Valley mystery. Littered across the surface of this dry lake are hundreds of rocks– some weighing as much as 700 pounds– that seem to have been dragged across the ground, leaving synchronized trails that can stretch for hundreds of meters. What powerful force could be moving them? Researchers have investigated this question since the 1940s, but no one has seen the process in action– until now.

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Cells Can Be Sorted with Sound

August 27, 2014 7:00 am | by MIT, Anne Trafton | Comments

Researchers have devised a new way to separate cells by exposing them to sound waves as they flow through a tiny channel. Their device, about the size of a dime, could be used to detect the extremely rare tumor cells that circulate in cancer patients’ blood, helping doctors predict whether a tumor is going to spread.

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Chemists Debunk MSG Myths

August 26, 2014 7:00 am | by ACS | Comments

Few ingredients come with as much baggage as monosodium glutamate. More commonly known as MSG, the compound has had a bad reputation for nearly 50 years. So, chemists felt it was time to clear its name.

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Five Facts About Crystals That May Surprise You

August 25, 2014 7:00 am | by ACS | Comments

Many people think of crystals as little more than sparkly things behind glass cases in museums. But crystals are everywhere, from the dinner table to the human body.

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Water Splitter Runs on AAA Battery

August 22, 2014 7:00 am | by Stanford Univ. | Comments

Scientists have developed a low-cost, emissions-free device that uses an ordinary AAA battery to produce hydrogen by water electrolysis. The battery sends an electric current through two electrodes that split liquid water into hydrogen and oxygen gas.

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Research Key to Cyborg Moth 'Biobots'

August 21, 2014 7:00 am | by North Carolina State Univ. | Comments

Researchers have developed methods for electronically manipulating the flight muscles of moths and for monitoring the electrical signals moths use to control those muscles. The work opens the door to the development of remotely controlled moths, or “biobots,” for use in emergency response.

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Immune System Dazed, Confused During Spaceflight

August 20, 2014 7:00 am | by NASA | Comments

Researchers have a good idea what causes immune system changes on Earth— things like stress, inadequate sleep and improper nutrition. New research suggests that spaceflight may temporarily alter the immune system of crew members flying long-duration missions aboard the ISS.

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Old Batteries Could Be Recycled into Solar Cells

August 19, 2014 7:00 am | by MIT, David Chandler | Comments

A system proposed by researchers recycles materials from discarded car batteries— a potential source of lead pollution— into new, long-lasting solar panels that provide emissions-free power.

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NASA to Investigate Impacts of Arctic Sea Ice Loss

August 18, 2014 7:00 am | by NASA | Comments

A new field campaign will begin flights over the Arctic this summer to study the effect of sea ice retreat on Arctic climate. The Arctic Radiation IceBridge Sea and Ice Experiment (ARISE) will conduct research flights Aug. 28 through Oct. 1, covering the peak of summer sea ice melt.

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Harvard Creates Robot Flash Mob

August 15, 2014 7:00 am | by Harvard Univ. | Comments

Through commands, autonomous devices arranged selves into vast, complex shapes in the first 1,000-robot flash mob.

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Lunar-landing Rocket Research Hits Milestone

August 14, 2014 7:00 am | by Purdue Univ. | Comments

A student team has designed, built and tested a critical part of a new rocket engine as part of a NASA project to develop spacecraft technologies needed to land on the moon, Mars and other cosmic venues.

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Tattoo Batteries are Powered by Sweat

August 13, 2014 7:00 am | by ACS | Comments

In the future, working up a sweat by exercising may not only be good for your health, but it could also power your small electronic devices. Researchers are reporting today that they have designed a sensor in the form of a temporary tattoo that can both monitor a person’s progress during exercise and produce power from their perspiration.

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Tractor Beam on Water Could Contain Oil Spills

August 12, 2014 7:00 am | by The Australian National Univ. | Comments

Physicists have created a tractor beam on water, providing a radical new technique that could confine oil spills, manipulate floating objects or explain rips at the beach.

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Venoms Hold Potential to Fight Cancer

August 12, 2014 7:00 am | by ACS | Comments

Bee, snake or scorpion venom could form the basis of a new generation of cancer-fighting drugs, scientists say. They have devised a method for targeting venom proteins specifically to malignant cells while sparing healthy ones, which reduces or eliminates side effects that the toxins would otherwise cause.

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Symposium Explores Wine

August 11, 2014 7:00 am | by ACS | Comments

Location. Location. Location. The popular real estate mantra also turns out to be equally important for growing wine grapes in fields and storing bottles of the beverage at home or in restaurants, according to researchers. Those are just two of the topics that will be covered in a symposium on wine this week.

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