共查询到20条相似文献，搜索用时 15 毫秒
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Pennisi E 《Science (New York, N.Y.)》2001,291(5507):1204-1207
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Cho A 《Science (New York, N.Y.)》2000,288(5473):1954-1955
Auditory researchers agree that hair cells are the ear's miniature amplifiers. They just don't agree about how the curious devices work. The two most popular ideas--one involving chemically activated trapdoors, the other cells that pump like pistons--both have been boosted by recent research. 相似文献
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Clery D 《Science (New York, N.Y.)》2012,336(6085):1096-1097
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Stokstad E 《Science (New York, N.Y.)》2005,309(5744):2150-2152
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Jakosky BM 《Science (New York, N.Y.)》2004,304(5679):1904
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Ferber D 《Science (New York, N.Y.)》2000,288(5467):792-794
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Sánchez-Lavega A 《Science (New York, N.Y.)》2005,307(5713):1223-1224
Determining a planet's rotation period can be difficult if the planet lacks a solid surface. However, for planets with an internal magnetic field, emissions at radio wavelengths are modulated by the planet's rotation rate. The latest results from the Cassini spacecraft seem to indicate that Saturn's rotation rate has slowed down by 6 minutes since the Voyager 1 and 2 spacecraft flew by the planet in 1980 and 1981, but it is unclear whether a slowdown has in fact occurred. Future data collected by Cassini may be able to resolve the question. 相似文献