Vibration harvesting product

Perpetuum, a UK based company have released a product for energy ‘harvesting’ from vibrating machinery. The PMG7 generator outputs at much as 5 mW at 3.3V from a vibration level of 100 mg.

Another company RLW has used this principle in a wireless vibration condition-monitoring product.

New mathematical model of cochlea

Mathematicians at Vanderbilt University have created a mathematical model of the cochlea and use the model to show that the spiral shape acts to enhance the low frequency sounds. The researchers led by Daphne Manoussaki and her colleagues, Richard Chadwick and Emilios Dimitriadis of the National Institutes of Health, published their findings in the journal Physical Review Letters.
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Vibrating shoes can improve balance

A recently published article in the Annals of Neurology (Volume 59, Issue 1, Pages 4 – 12), by Attila Priplata et. al., shows that vibrating insoles can improve the balance for people suffering from the effects of a stroke or diabetic neuropathy.