Groups should picnic in the shape of a parallelogram, hexagon or pentagon if they want to meet together while still maintaining social distancing and good hygiene, experts have said.

Unlike the Pentagon, whose five-sided shape was determined by the architect because of the topography of existing roads on the original build site, the hexagon is a visual symbol of France’s ...

The results, published in four papers in Nature, show that the planet has surprising “polygonal” shapes of cyclones at its poles – including a pentagon at the south pole – and that its ...