Three robot advances that’ll be needed for DARPA’s new underground challenge

This week, the US Defense Advanced Research Projects Agency announced a challenge to push the limits of robotic design and control. 

DARPA’s Subterranean Challenge will require teams to have robots maneuver objects through three different environments: a series of caves, a bunker-like “urban environment,” and a labyrinth of confined tunnels. While the robots will be remote-controlled, they’ll need some serious autonomous skills. ...

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Facebook Security Bug Affects 90M Users

Facebook said today some 90 million of its users may get forcibly logged out of their accounts after the company fixed a rather glaring security vulnerability in its Web site that may have let attackers hijack user profiles.

In a short blog post published this afternoon, Facebook said hackers have been exploiting a vulnerability in Facebook’s site code that impacted a feature called “View As,” which lets users see how their profile appears to other people.

“This ...

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Data mining reveals the hidden laws of evolution behind classical music

Musicologists have long studied how musical styles change over time. They can see that new styles emerge from musical traditions, sometimes by combining two or more styles.

That brings to mind the process of evolution. Is it possible that this powerful process has shaped the musical landscape using the same well-known laws of transmission that shape the biological landscape? Or is it just that ...

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