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Whither the teakettle whistle
Despite decades of brewing tea in a whistling kettle, the source and mechanism of this siren sound of comfort has never been fully described scientifically. Acknowledging the vibrations made by the ... more
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Revisiting quantum effects in MEMS
Micro- and nano-electromechanical devices, referred to as MEMS and NEMS, are ubiquitous. These nanoscale machines with movable parts are used, for example, to trigger cars' airbags following a shock ... more
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Calm solar cycle prompts questions about impact on Earth
The surface of the sun has been surprisingly calm of late - with fewer sunspots than anytime in in the last century - prompting curious scientists to wonder just what it might mean here on Earth. ... more
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Sunspots: Coming and Going
Two large, complex sunspots are moving across the face of the sun. One, which produced considerable solar activity in the past weeks, has almost rotated off completely. A new sunspot rounded into vi ... more
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