Most of us have probably mowed a lawn at least once or twice. The technology seems pretty simple right? Attach a mower to a spinning blade and there you have it, a grass cutting machine.
However, the physics at play isn’t enough to cut the grass. In fact, without certain design elements of mower blades, these sharp metal blades wouldn’t cut grass at all. Check out all the mesmerizing engineering and physics that allow mowers to keep your lawn looking fresh in the video below from Smarter Every Day.