What's nature worth? New computer models tell all

Breath in. The air is free. But we'd all agree it's not worthless. So, what's the price tag on benefits provided by nature? In 1997, the University of Vermont's Robert Costanza and his co-authors put the answer at $33 trillion ...

Purdue research helps advance new rocket technology

Purdue University engineers are conducting research to help the United States develop a type of advanced rocket technology that uses kerosene and would not require the foam insulation now used on the space shuttle's external ...

In new hybrid chip, molecules are memories

As scientists strive to satisfy the growing demand of the digital era for faster, smaller, and cheaper electronics, one of the most promising technologies is hybrids. Hybrid ICs (integrated circuits) consist of a combination ...

Student invents the Hyperbow

A U.S. graduate student has invented an electronic system to measure minute changes in the position, acceleration and strain of a violin bow.

Agriculture and tropical conservation: rethinking old ideas

It's a long-held view in conservation circles that rural peasant activities are at odds with efforts to preserve biodiversity in the tropics. In fact, the opposite is often true, argue University of Michigan researchers John ...

Research Paper Illuminates How Light Pushes Atoms

A research paper to be published in the 18 August edition of the journal Physical Review Letters reveals a new effect in the fundamental way that laser light interacts with atoms.

A nursery for Hurricanes

Every hurricane season, about 100 low-pressure weather disturbances whirl westward out of West Africa and over the Atlantic Ocean, but less than one-fifth of them become tropical depressions, storms or hurricanes.

In genetics, memory may span generations

Swiss scientists say they've determined plants pass memories of stressful events from parent to progeny to help them adapt to difficult conditions.

July heat wave almost breaks record

July was the second hottest month, averaging 77.2 degrees in the 48 contiguous states of United States, just below the record of 77.5 set in 1936.

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