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Neuroscience

Somewhere in the brain is a storage device for memories

New technology and new ideas spur the hunt for the physical basis of memory.

Materials Science

New device can transmit underwater sound to air

A newly created metamaterial takes a shot at solving the problem of hearing underwater sounds from the surface.

Computing

Your phone is like a spy in your pocket

Smartphones’ powers of perception make them more user-friendly and efficient. But they also open new opportunities for privacy invasions.

Astronomy

Stars with too much lithium may have stolen it

Some small stars have extra lithium before they grow old, suggesting they get extra amounts of the element from an external source.