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Engineering

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

By wearing different self-folding exoskeletons, a robot can move, roll, float and glide.

Marcus Woo, Contributor

In annual speed test, international teams must negotiate the complexities of aerodynamics and airflow.

Ramin Skibba, Contributor

Researchers produce smallest known radio frequency identification tags.

Charles Q. Choi, Contributor

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