Optimized application of high intensity focused ultrasound

The field of nonlinear acoustics is currently receiving a lot of attention, thanks to applications focused on the improvement of ultrasonic cleaning, ultrasonic welding, sonochemistry, or thermotherapy. Lithotripsy – the ...

Kidney stones have distinct geological histories, study finds

A geologist, a microscopist and a doctor walk into a lab and, with their colleagues from across the nation, make a discovery that overturns centuries of thought about the nature and composition of kidney stones. The team's ...

Drinking green tea helps prevent kidney stones

(PhysOrg.com) -- Drinking green tea can help prevent the formation of large kidney stones, report Chinese scientists in the Royal Society of Chemistry journal CrystEngComm.

Commercial space travel carries implications for health

(Phys.org)—Just a half-century after the first human ventured into space, commercial space travel—or "space tourism"—is quickly becoming a reality. A new UCSF study looks at the health implications of flying into outer ...

Lego down! Focused vibrations knock over minifigures

A tabletop covered in miniature Lego minifigures. There is a whooshing sound, a pause, and then a single minifigure in the center of the table topples over, leaving the remaining minifigures standing.

Sound bullets in water

Sound waves are commonly used in applications ranging from ultrasound imaging to hyperthermia therapy, in which high temperatures are induced, for example, in tumors to destroy them. In 2010, researchers at Caltech led by ...

Super-fine sound beam could one day be an invisible scalpel

A carbon-nanotube-coated lens that converts light to sound can focus high-pressure sound waves to finer points than ever before. The University of Michigan engineering researchers who developed the new therapeutic ultrasound ...

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