Earth's magnetic field has been showing signs that it might be getting ready to flip polarity. Now an international team of scientists, including UC Berkeley geophysicist Paul Renne and grad student Courtney Sprain, have discovered that the last magnetic reversal took place 786,000 years ago and happened very quickly, in less than 100 years - much faster than the thousands of years most geologists thought.
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Kai Huotari, a sometime filmmaker and former visiting scholar at Berkeley's School of Information, analyzed thousands of tweets and interviewed 45 "TV live-tweeters" to learn why people would do such a thing. Note to TV producers: It's not all about you. Huotari speaks tonight (Tuesday, Oct. 14) on campus.
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Fad diets come and go, but might there be something to the ones that involve consuming grapefruit and grapefruit juice? New UC Berkeley research found that mice fed a high-fat diet gained less weight when they drank grapefruit juice instead of water.
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