Uncategorized

  1. Anthropology

    Hand and Brain

    Get a handle on primate handedness research and its bearing on brain function at a Web site run by anthropologist M.K. Holder. Participate in ongoing research and listen to various primates sound off, from a screaming chimpanzee to a belching mountain gorilla. Go to: http://www.indiana.edu/~primate/index.html

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  2. 19228

    I object to the glib use of the phrase “time reversal” in this article. Time is a sequential history of events and is not reversible. What the researchers are accomplishing is a clever resequencing of events, roughly analogous to playing a strip of movie film backwards, an event that I’m sure you will agree occurs […]

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  3. Tech

    On the Rebound

    When electronically reversed in time, acoustic echoes can zero in on a spot in space, focusing sound energy so that it may zap tumors, detect submarines, or transmit private and secure information.