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Space

Voyager Clue Points To Origin of the Axis of Evil 293

KentuckyFC writes "Cosmologists have been scratching their heads over the discovery of a pattern imprinted on the cosmic microwave background, the radiation left over from the Big Bang. This pattern, the so-called Axis of Evil, just shouldn't be there. Now an independent researcher from Canada says the pattern may be caused by the boundary between the Solar System and interstellar space where there is a sharp change in pressure, temperature and density of ions in space. Known as the termination shock, astronomers had thought this boundary was spherical. But last year, data from the Voyager spacecraft which have crossed the boundary, showed it was asymmetric. The new thinking is that the termination shock acts like a giant lens, refracting light that passes through it. Any distortion of the lens ought to show up as a kind of imprinted pattern on an otherwise random image. But the real eye-opener is that as the shape of the termination shock changes (as the Solar Wind varies, for example), so too should the pattern in the microwave background. And there is tentative evidence that this is happening too (abstract)."
Security

Human Ear Could Be Next Biometric System 154

narramissic writes "A team of researchers at the University of Southampton, UK, has received funding from the UK's Engineering and Physical Sciences Research Council to learn whether otoacoustic emissions (OAE), the ear-generated sounds that emanate from within the spiral-shaped cochlea in the inner ear, can be used as a viable biometric technology like fingerprints and IRIS recognition. According to a report in New Scientist, someday instead of asking for passwords or pin numbers, a call center or bank would simply use a device on their telephone to produce a brief series of clicks in the recipient's ear to confirm the person is who they say they are." Try faking that with gummy bears.

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