Archive for May, 2008

Ancient “Snowball Earth” Melted Fast Due to Methane

Publication:   Date:   View Article

A massive release of methane, a potent greenhouse gas, may have triggered rapid melting of the last “snowball Earth” about 635 million years ago, a new study suggests.

Indiana Jones and the mysteries of archaeology

Publication:   Date: May 22, 2008   View Article

Learn about seven archaeological mysteries, including the crystal skulls at the heart of the most recent film in the Indiana Jones franchise.

Growing Ocean Acidity May Erode Coastal Ecosystems

Publication: National Geographic News   Date: May 22, 2008   View Article

Ocean waters along North America’s west coast are becoming more acidic than expected in response to atmospheric carbon emissions, which will likely cause significant changes to economically vital marine ecosystems, a new study says.

The 10 greatest hits and misses on Mars

Publication:   Date: May 20, 2008   View Article

Getting spacecraft to Mars is risky business. Internationally, fewer than half of the attempts have succeeded. When they make it, mission control explodes in cheers and geeky high-fives. When they fail, the silence is broken only by scientists and engineers trying to explain what went wrong and how to prevent it from happening again. Learn about ten hits and misses of Mars exploration.

The 10 smartest animals

Publication:   Date: May 16, 2008   View Article

Scientists may not agree on the best and fullest definition of intelligence – but they generally agree that humans are highly intelligent. Learn about the intelligence of humans and nine other species that stand out for their smarts.

11 killer storms around the world

Publication:   Date: May 15, 2008   View Article

Cyclone Nargis struck Myanmar on Saturday with 120 mph winds and a tidal surge that smashed through coastal towns and cities. Tens of thousands of people have died, and diplomats fear that the death toll could exceed 100,000. Nargis already ranks among the deadliest storms to strike Asia in modern times. Learn about nine more of the deadliest storms since 1970, plus the deadliest hurricane in U.S. history.

Shorebirds “Defy Gravity” to Eat, Study Says

Publication: National Geographic News   Date: May 15, 2008   View Article

Certain types of shorebirds defy gravity to get morsels of food up their long, slender beaks into their mouths, new research shows.

The birds, called phalaropes, exploit the same principle that allows water droplets to stick on windows.

© 2008-2010 Collected Writings By John Roach