It can detect signals at frequencies higher and lower than our own ears, too.
Continue reading… “Tiny ‘hearing’ device is 100,000 times thinner than your eardrum”
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Deep Siren: Text Messaging For Submarines
Communicating with submarines under the surface of the water has always been tricky. How do you stay in contact without having to surface? The Navy believes that a form of text messaging may be the answer.
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“Groundbreaking” Portable Therapeutic Ultrasound System
Cornell University 3rd year PhD National Science fellow, George K. Lewis
Ultrasound machines can cost $20,000 or more and weigh 30 pounds, but not George K. Lewis’s ultrasound device. Lewis’s portable therapeutic ultrasound machine cost him about $150 to make — 80 percent of which was spent on the battery — it fits in the palm of his hand, and it can help treat cancer and relieve arthritis… among other things.
Continue reading… ““Groundbreaking” Portable Therapeutic Ultrasound System”
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