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That, they say, gives them access to more telling, high-frequency waves that say a lot more about cognitive intentions.
ENGADGET: Test subjects with electrode implants use mind control to move a cursor
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High-frequency waves have short wavelengths.
ECONOMIST: Archaeology
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Recent discoveries, however, have such medgadgets being powered by photons, hip hop and now high-frequency radio waves.
ENGADGET: Stanford researchers make heart implant powered by radio waves, put batteries out of a job
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That conundrum was solved by getting the high-frequency signals to penetrate deeper using alternating waves of electric and magnetic fields.
ENGADGET: Stanford researchers make heart implant powered by radio waves, put batteries out of a job
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Defenders of high-frequency trading, in which firms send waves of buy and sell orders into the market, often canceling them, say it makes trading more efficient and cheaper for everyday investors.
WSJ: High-Speed Trading in the Spotlight