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Singing sands and similar sounds...
Using arrays of geophones and microphones, researchers in Death Valley studied the causes of singing sands - and burping ones too.
Ultrasonic tractor beams at last
Not quite strong enough to lift planes yet, but ground-breaking nevertheless, the ultrasonic tractor beam is really here.
A dolphin's ear-view?
This image shows a diver as "seen" by a dolphin's echolocation system, according to a press release by the researchers involved...
The art of music
Online article about the National Gallery's exhibition, which asked composers to write music in response to a selection of paintings.
Experiments on the effects of different musical soundscapes on shoppers provoked some strong reactions...