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Humanmade Device

The physics of a singing saw

The researchers clamped the saw in two configurations: a J-shape (left) and an S-shape (right). The S-shape has an inflection point (the sweet spot) in its profile, while the J-shape does not. Credit: Mahadevan Lab/Harvard SEAS…

A 7.8 billion strong dilemma

I think most of us will agree that Cop26 is pretty much yesterday's news? After all the fanfare, the deference and the fact that the lavish Glasgow Summit was so widely hailed as the last chance saloon for dear old Mother Earth;…