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Fact of the Week
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Farmyard robots can reduce chemical pollution
Fact of the week
10 January 2022
Farmyard robots can reduce chemical pollution
Many farmers spray chemicals over their fields to get rid of weeds. The trouble is, these weedkillers also kill wildlife, pollute rivers and damage the soil. But Swiss inventors have created a robot that can cut weedkiller use by 90%, by targeting weeds VERY precisely. Its camera compares photos of the plants to decide which are weeds.

Find out more in:
100 Things to Know About Saving the Planet

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7 April 2025
The original rock and roll star was not Elvis Presley, but Sister Rosetta Tharpe
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