Generating cold with solids

After more than a century, physicists aim to dethrone the tried-and-tested technology of the refrigerator, as cooling can be made more energy-efficient.

Exterminating greenhouse pests with bat-inspired drones

Researchers have been testing real-life Batman-style gadgets to eradicate moth pests from greenhouses, including bat-inspired flying drones that hunt down and destroy moths—but new research reveals that the noise from drones ...

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