News tagged with prism

Researchers invent acoustic prism

EPFL scientists have invented a new type of "acoustic prism" that can split a sound into its constituent frequencies. Their acoustic prism has applications in sound detection.

dateAug 08, 2016 in General Physics
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Germany denies military knew about PRISM

The German government Wednesday denied a report claiming that the nation's military knew for years about the US surveillance programme PRISM revealed by fugitive former intelligence analyst Edward Snowden.

dateJul 17, 2013 in Internet
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NSA revelations reframe digital life for some

In Louisiana, the wife of a former soldier is scaling back on Facebook posts and considering unfriending old acquaintances, worried an innocuous joke or long-lost associate might one day land her in a government probe. In ...

dateJul 22, 2013 in Internet
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