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Engineering

Some of the so-called “hygrobots” can spontaneously advance across a wet surface.

Catherine Meyers, Editor

An inexpensive handheld sensor may simplify testing for pesticides on fruits and vegetables – but won’t replace government monitoring.

Valerie Brown, Contributor

AI is helping to identify safer techniques in construction work.

Marcus Woo, Contributor

Devices made from bacteria-filled hydrogel inks sense chemicals and perform logic operations.

Catherine Meyers, Editor

New study on how cans crumple sheds light on general mechanical properties of metal cylinders.

Charles Q. Choi, Contributor

A new technique prints tiny middle ear bones for a perfect fit.

Katharine Gammon, Contributor

First inspired by fire sprinkler systems, the gadgets pop when a material that softens in heat releases a spring.

Catherine Meyers, Editor

Redesigned guitar strings use physics to avoid whammy bar dissonance.

Yuen Yiu, Staff Writer

The technology is progressing quickly, but the main challenge may be overcoming our fears.

Brian Owens, Contributor

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