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Imagine being an extraterrestrial geologist in geostationary orbit above the Pacific Northwest in the 1970s. You’re the first explorers to reach Earth (underpants-thieving aliens aside), and you haven’t got a lot of data on this little blue marble

With a new indoor weather monitoring system, IBM makes it easier to ensure rare art is properly preserved. But the implications go far beyond museums. Humans have, in general, done a decent job of preserving relics of the past in museums

In the hard drive industry, the rapid growth of storage density has been propelled in part by developments in the sensors used to read the magnetic "bits" on the disk. Recently, the use of giant magnetoresistance (GMR) in such sensors, with current flowing in the plane of a multilayer film, has given way to the use of tunneling magnetoresistance, where current flows perpendicular to the plane of the multilayer through a tunnel barrier.