The Wunda Weeder is a great invention, where Aussies Brendan Corry and Peter Sargent came up with a solar-powered machine which features an adjustable headrest that is suspended just above the crops they’re tending to. This is fully adjustable, making it play nice with a whole lot of crops, depending on what you would like to grow at that point in time. The electric motors will harness its juice from the sun, thanks to a bunch of solar cells on the roof which also doubles up as a shade and rain guard. According to its inventors, the Wunda Weeder has the potential to triple farm productivity and has a return on investment of one year despite its $8,000 price tag.
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