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1 .This is Scientific American's 60-Second Science. I'm Wayt Gibbs. Got a minute?
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2 .It's happened to all of us.
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3 .You're on your cell phone, your boss is saying something important, and then th..con...ction star..s to dr…p out.
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4 .Now a team of physicists in Denmark, led by Albert Schliesser and Eugene Polzik, has demonstrated a new kind of radio tuner that is far more sensitive to faint signals.
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5 .The technique could eventually mean fewer dropped calls, better GPS coverage, faster Wifi, and much more detailed images from MRI scanners.
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6 .The tuner includes a novel component:
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7 .a tiny reflective membrane just half a millimeter on a side and only a hundred nanometers thick.
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8 .It functions in the circuit as a capacitor, and when radio waves pass through the antenna, the minuscule voltage shifts make the membrane bounce like a trampoline.
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9 .Laser light, reflecting off the membrane and then interfering with itself, turns those nanometer-high wiggles into a strong, clear signal.
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10 .The report is published on the site arXiv.org.
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11 .The scientists are excited about how the technology might sharpen the pictures produced by radio telescopes.
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12 .But wouldn't it also be nice to actually get decent phone reception inside a parking garage?
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13 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Wayt Gibbs.
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