Do kids benefit from homework?

(PhysOrg.com) -- Homework is as old as school itself. Yet the practice is controversial as people debate the benefits or consider the shortcomings and hassles. Research into the topic is often contradictory and certain districts ...

5-day delivery no sure cure for postal woes, economist says

Scaling back mail delivery from six days a week to five may be the best bet to stem mounting U.S. Postal Service losses, but could still be a gamble, says a University of Illinois economist who has studied the agency's persistent ...

Cassini Sends Back Images of Enceladus as Winter Nears

(PhysOrg.com) -- NASA's Cassini spacecraft has sailed seamlessly through the Nov. 21 flyby of Saturn's moon Enceladus and started transmitting uncalibrated temperature data and images of the rippling terrain. These data and ...

A mechanical model of vocalization

When people speak, sing, or shout, they produce sound by pushing air over their vocal folds -- bits of muscle and tissue that manipulate the air flow and vibrate within it. When someone has polyps or some other problem with ...

KLM flies world's first 'passenger flight on biofuel'

A Boeing 747, one of four engines powered by a 50-percent biokerosene mix, circled the Netherlands for an hour on Monday for what airline KLM called the world's first passenger flight using biofuel.

Free Spirit: Third Extrication Drive Ends With Wheel Stall

(PhysOrg.com) -- Spirit experienced a wheel stall with the right-rear wheel during the second step of a two-step drive on Sol 2092 (Saturday, Nov. 21). This is not the same wheel that stalled on Sol 1899 (May 6), the left-middle ...

IBM Researchers Lower Language Barrier With Text Translator

IBM Researchers are helping to break the language barrier with the advent of technology dubbed "n.Fluent" -- smart software that translates text between English and 11 other languages. IBM employees use it to instantaneously ...

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