Web games probed over possible child pressure

A watchdog has launched an investigation into whether children face "unfair pressure" to spend money on apparently free web and app-based games, it said Friday.

Physics duo describe a way to guarantee true randomness

(Phys.org) -- In the natural world, it seems randomness is all around. Walk through a forest for example and it appears completely random, despite the fact that natural patterns emerge at almost every turn. In the human world, ...

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