Researchers create better light-trapping devices

Anyone who's ever played the drums, tuned a guitar, or even made a wine glass "sing" by circling a finger along its edge knows about resonance. Acoustic resonators, like the cavity of a drum or a half-full wine glass, naturally ...

Probing battery hotspots for safer energy storage

Researchers are striving to make tomorrow's batteries charge faster and store more energy. But these conveniences come with safety challenges, like more heat produced in a battery. For the first time, a team of researchers ...

Volcanic ash particles under the microscope

Volcanic ash is hazardous to many aspects of our lives. When airborne, it can damage aircraft: its particles abrade aeroplane surfaces and can even cause failure to critical instruments. Once the ash falls, it can harm our ...

A splash of detergent makes catalytic compounds more powerful

Researcher David Rosenberg examines images of a white powder under a powerful scanning electron microscope. Up close, the powder looks like coarse gravel, a heap of similar but irregular chunks. Then he looks at a second ...

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