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Some types of nanoparticles negatively affect test heart
Researchers found that some commonly used nanoparticles negatively affected the heart rate, rhythm and ECG values of a test heart.
August 3, 2011
Crop-circle art created using physics?
A physicist suggests that crop-circle art might be done using GPS, lasers and microwaves to create intricate patterns on farmer's fields.
August 2, 2011
Did humans evolve bigger brains to see at dim latitudes?
Humans living farther from the equator evolved bigger brains. But it doesn't mean that they're smarter - they need bigger brains in order to see in low light.
August 2, 2011
Swarms of humans likely overwhelmed Neanderthals
Cambridge researchers give evidence of modern humans migrating out of Africa with 10 times the population of Neanderthals in central and western Europe.
August 1, 2011
In 2011, 7 billion humans and counting
Expect 7 billion humans by October 31, according to experts at the Population Reference Bureau, which released its 2011 World Population Data Sheet on July 27.
July 31, 2011
Insect-like flying machines for surveillance
Scientists are developing tiny aerial vehicles with innovative flapping wings based on those of natural insects. Read more about flying machines.
July 29, 2011
Mining and cancer linked in Appalachia
A July 2011 study finds increased cancer rates near the Coal River Valley mountaintop removal in West Virginia. Read more about mining and cancer.
July 28, 2011
Ancestors may have walked upright four million years ago
Ancient footprints in Tanzania reveal features essential for an upright gait. Read more about our ancestors walking upright earlier than previously believed.
July 27, 2011
A skyscraper + ferris wheel + zoo. Wait…what?
Influx Studio hopes a rare architectural combination of skyscraper, ferris wheel and zoo will inspire Buenos Aires residents to take action that helps wildlife.
July 27, 2011
Why fish farming gets a bad rap in America
In America, fish farming or aquaculture usually elicits a neutral or negative response from people. Why is this? Find out on EarthSky.
July 27, 2011
