nature Magazine – May 25, 2023 issue:  In this week’s issue, Wenzhu Liu and colleagues present a way to make foldable silicon wafers that can be used in flexible solar cells. The secret to success was to blunt the edges of the silicon wafers, thereby stopping them from undergoing brittle fracturing. As a result, the researchers were able to make 15-centimetre solar cells with a bending angle of more  than 360°.

Oldest known ‘blueprints’ aided human hunters 9,000 years ago

Prehistoric engravings depict vast hunting traps with extraordinary precision.

The oldest blueprints ever found might have been used to prepare for large-scale hunts¹.

Engraved lines on a stone in Jordan might depict landscape features near a large-scale hunting structure.