News tagged with collection

The synchronized dance of skyrmion spins

In recent years, excitement has swirled around a type of quasi-particle called a skyrmion that arises as a collective behavior of a group of electrons. Because they're stable, only a few nanometers in size, and need just ...

dateMay 30, 2017 in General Physics
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US NSA spy agency halts controversial email sweep

The National Security Agency announced Friday it would end its controversial practice of sweeping up any email or text message an American exchanges with someone overseas that makes reference to a real target of NSA surveillance.

dateApr 29, 2017 in Security
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