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Soft matter and liquids

Soft matter and liquids

Liquid flow in capillaries contradicts conventional wisdom

27 Oct 2016
Sections of four horizontal capillary tubes half-filled with liquid, each with a different meniscus shape. The meniscus side-profile shapes range from vertical to an elongated s-shape
Liquid slump: meniscus deformation and a liquid tongue. (Courtesy: PNAS (pnas.1606217113))
Fill a narrow glass capillary tube with water, then turn it horizontal. Conventional wisdom says tha

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Philip Ball is a science writer based in the UK
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