In geometry, there are surfaces that do without an inside or outside—and some need at least four dimensions to exist ...
From cylindrical nanotubes to the hollow spheres known as buckyballs, carbon is famous for forming tiny, complex nanostructures (SN: 8/15/19). Now, scientists have added a new geometry to the list: a ...
Planting flower strips in a field with at least two species can increase the number of natural enemies of pests by 70 percent. The more flower species, the better the effect, according to a new ...
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