Electrical engineer Allen Pan realized that a high-powered laser can better cut grass than a blade, so he decided to build a crazy laser-powered lawnmower. This required experimenting with both 20 watt and 30 watt laser before settling on a four lasers arranged in a grid format.
Even though the lasers are powerful enough to slice grass, Pan didn’t realize that the ground needed to be completely flat for them to work properly. Let’s just say that this laser mower isn’t what you want for an overgrown lawn, but it does somewhat work on those brown patches.
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One of the most underappreciated features of a regular lawnmower is that the spinning blades isn’t just a big knife spinning around. It is also a propeller sucking the grass up into it, exactly to combat the problem with the lawnmower chassis pushing the grass down under the spinning blades,” said one commenter.
