The science pros at TKOR create a mini crossbow to study compact projectile devices. How Donald Trump’s approval rating has ...

There’s a war brewing over the use of 3D printers to make unlicensed guns and other firearms. But for the time being 3D printed weaponry is still a novelty, particularly this fully functional crossbow ...

BEIJING (AP) - Powerful mini-crossbows that shoot toothpicks and needles are the new must-have toy for schoolkids across China - and a nightmare for concerned parents and school officials. Several ...