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News Link • Science, Medicine and Technology

PopSci Q&A: Creating Crop Circles With Lasers and Microwaves


In the collective modern imagination, crop circles are usually attributed to either aliens or a vast human conspiracy; possibly both. Some circle-watchers believe the designs are landing strips, maybe, or some kind of communiqué from outer space. Others argue they’re the result of secret government tests, or perhaps secret codes meant to convey information to satellites and aerial drones.

For all the talk about who makes them, few people discuss how. Do people (or little green men) stomp around willy-nilly until the stalks fall down? Or is something decidedly more high-tech going on? We talked to a circlemaker and a materials physicist to get some answers.

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