Volume 589 Issue 7842



News Features

News & Views

Brain rhythms that help us to detect borders p.353

Oscillations in neuronal activity in the medial temporal lobe of the human brain encode proximity to boundaries such as walls, both when navigating while walking and when watching another person do so.

doi: 10.1038/d41586-020-03576-8

Electrons broken into pieces at crystal defects p.356

Fractional electric charges have been observed at crystal defects in artificial structures resembling materials called topological crystalline insulators. Such fractional charges could have various engineering applications.

doi: 10.1038/d41586-021-00079-y

Anti-ageing effects of protein restriction unpacked p.357

Two animal studies show that restricting the dietary intake of branched-chain amino acids can extend lifespan by modulating the mTOR signalling pathway. But more research is needed before this diet should be recommended in people.

doi: 10.1038/d41586-020-03662-x

Mechanical memory written and read remotely p.360

A device has been developed that consists of mechanical bits, analogous to the magnetic bits used in computer hard drives. Information encoded in the bits programs the mechanical properties of the device.

doi: 10.1038/d41586-021-00080-5