Archive for July, 2007

Hurricanes Have Doubled Due to Global Warming, Study Says

Publication: National Geographic News   Date: July 30, 2007   View Article

The number of Atlantic hurricanes that form each year has doubled over the past century and global warming is largely to blame, according a new study.

The increase occurred in two major steps of about 50 percent each, one in the 1930s and the second since 1995.

Laptops: A College Essential, But for Class?

Publication: MSN Tech & Gadgets   Date: July 28, 2007   View Article

Professors debate whether laptops are a help or hindrance in the classroom.

Humans Changing Rainfall Patterns, Study Says

Publication: National Geographic News   Date: July 23, 2007   View Article

Humans have caused global precipitation patterns to change substantially over the past century, new research says.

About 1.8 inches (4.5 centimeters) more rain fell annually in Canada, Russia, and Europe in recent years than it did in 1925.

Dinosaurs Had Sex As Teens, Study Says

Publication: National Geographic News   Date: July 20, 2007   View Article

Birdlike dinosaurs did not wait until they were fully grown to start having sex, a new study says.

Early sexual maturity is a trait associated with modern-day crocodiles more than birds—a surprise because most scientists believe birds are akin to modern dinosaurs.

Penguins Changed Diet Due to Whaling, Study Suggests

Publication: National Geographic News   Date: July 20, 2007   View Article

Extensive whale and seal hunting in Antarctica over the past 200 years appears to have triggered a shift in the diet of Adélie penguins, a new study suggests.

The seabirds abandoned fish in favor of krill, shrimp-like crustaceans that are a major component in the diets of fur seals and baleen whales.

Gecko, Mussel Powers Combined in New Sticky Adhesive

Publication: National Geographic News   Date: July 18, 2007   View Article

Give your tape some real “mussel”!

So might go the ad campaign for “geckel”—a next-generation adhesive inspired by the legendary stickiness of geckos and mollusks—if the product is successfully brought to market.

Alien Life May Be “Weirder” Than Scientists Think, Report Says

Publication: National Geographic News   Date: July 6, 2007   View Article

Think life on Earth is weird? It might be even weirder on distant planets and moons, according to a new report.

Instead of thriving on water, extraterrestrial organisms might live in a sea of liquid methane. Or instead of getting energy from the sun, they might thrive on hydrochloric acid.

© 2008-2010 Collected Writings By John Roach