Laser-guided bullets


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Laser-guided bullets.

Invented by engineers at the US government’s Sandia National Laboratories, the self-guided bullet homes in on a laser spot trained on a target from up to 1.4 kilometres away from its firing point. If the target is a moving truck, say, and it moves after the bullet is fired, the laser illumination as seen by a laser sensor in the bullet’s nose instructs the bullet to finely twist tiny rudder-like fins on its rear end to keep it on target.

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