Scientists In Switzerland Use Sound Waves To Levitate, Manipulate Matter. Http://bit.ly/15z86Ro As Anyone
Scientists in Switzerland use sound waves to levitate, manipulate matter. http://bit.ly/15z86Ro As anyone with a subwoofer and a teenager knows, sound waves exert pressure. When those waves are bounced between carefully aligned surfaces, they can create what is known as a standing wave, in which the total pressure from the original wave and its reflection cancel each other out. Objects placed at spots along the wave with the lowest amplitude, known as node points, tend to stay put. Being able to manipulated matter without touching it promises a wealth of applications, from material sciences to biology. For instance nucleic acids can be introduced into cells – a process known as DNA transfection – without fear of contamination."You can basically play with cells in a droplet," says Foresti While commuting via acoustically levitated skateboards may be far off in the future, Foresti says that he hopes that other researchers will soon find novel uses for his method. Video: Acoustophoretic Waltz Sodium and water dance a Waltz. http://bit.ly/14uqRsq Courtesy: Dr. Daniele Foresti http://bit.ly/15z96VB Meet our heros: http://bit.ly/15z9inT
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