When you watch these ads, the ads check you out
January 30, 2009 By DINESH RAMDE , AP Business Writer
(AP) -- Watch an advertisement on a video screen in a mall, health club or grocery store and there's a slim - but growing - chance the ad is watching you too.
Content from The Associated Press expires 15 days after original publication date. For more information about The Associated Press, please visit www.ap.org .
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From lemons to lemonade: Reaction uses carbon dioxide to make carbon-based semiconductor,
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Every black hole contains a new universe: A physicist presents a solution to present-day cosmic mysteries,
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New silicon memory chip developed,
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Thioridazine kills cancer stem cells in human while avoiding toxic side-effects of conventional cancer treatments,
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SpaceX private rocket blasts off for space station (Update),
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length of wire in a coil of known dimensions?
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India Engineering Powerhouse
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electromagnet core dereference between hard and soft iron
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Formula to calculate psi required to deliver gpm through nozzel
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