In 1665 Christiaan Huygens discovered that two pendulum clocks, hung from the same wooden structure, will always oscillate in synchronicity. Today, some 350 years on, Eindhoven and Mexican researchers ...

The first Foucault’s pendulum I ever saw was at the Franklin Institute in Philadelphia, the city where I was born. The pendulum hung in a stairwell. Its wire was attached to the ceiling four stories ...

Engineers have used a variety of techniques to create robots that can scale walls – “the Climber” uses a rolling seal, while the insect-like robots from SRI have caterpillar tracks with ...

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