Engineering

A safer gun?: 'Smart' pistols headed to US market

"Smart" pistols designed to limit who can shoot them are poised to hit the booming US firearm market this year, taking aim at spiking gun deaths as federal lawmakers remain deadlocked on any new restrictions.

Social networks aim to erase hate but miss the target on guns

As Facebook faces down a costly boycott campaign demanding the social network do more to combat hate speech, CEO Mark Zuckerberg recently announced plans to ban a "wider category of hateful content in ads." Twitter, YouTube ...

Robotics

Roofing drone nails down shingles

An octocopter capable of attaching asphalt shingles to roofs with a nail gun has been demonstrated at the University of Michigan.

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