PITTSBURGH — A tractor-trailer took a wrong turn and got stuck on a set of steps in California-Kirkbride on Monday morning. According to Allegheny County 911, first responders were called to Sunday ...
Tractor beams are a staple in science fiction. The hero inevitably gets stuck on the enemy’s beam, escapes a tractor beam, or uses a tractor beam to escape. And now science has caught up. The BBC ...
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