free103point9 Newsroom : Ultrasound to the agricultural rescue - 0 views
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john roach on 21 Mar 12"When applied to leafy greens, high-power ultrasound creates millions of tiny bubbles along a leaf's surface. As they burst at a rate of a thousand times a second, they provide high-energy shock waves that can get into the leaf's nooks and crannies to dislodge pathogens, which are then whisked away in the sanitized wash."