Magnetic charge crystals imaged in artificial spin ice

A team of scientists has reported direct visualization of magnetic charge crystallization in an artificial spin ice material, a first in the study of a relatively new class of frustrated artificial magnetic materials-by-design ...

'Anonymous' group hacks Tunisian Islamist sites

Hackers claiming to belong to the Anonymous Internet freedom group posted video messages on Facebook pages of Tunisian Islamists, threatening reprisals over their efforts to introduce Salafist laws.

Mexico's own 'WikiLeaks' already making waves

Mexico's WikiLeaks-inspired whistleblower website is already making waves just days after its launch, even though it has yet to expose any government scandals.

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