One seismometer is often not enough to reliably detect earthquakes or human activity such as underground nuclear tests.

Imagine walking into your kitchen and instantly knowing if the fish you bought yesterday is still fresh—or entering an industrial site with sensors that immediately alert you to hazardous gas leaks.

(a) Schematic diagram of intra-articular pressure detection using a sensory system in a sheep model. (b) Schematic and photograph for the implantation of two sensory arrays between the femur and the ...