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Chemical processes

Chemical processes

‘Heartbeat’ detected in drop of gallium held in a graphite corral

18 Jul 2018 Hamish Johnston
Gallium heartbeat
In a heartbeat: time sequence showing a gallium drop (top left) move towards the edge of a graphite ring, where it pancakes and begins moving away from the edge (top right). The bottom panel shows the motion of the drop towards the centre of the ring and then back to the edge. (Courtesy: Z Yu et al/Phys. Rev. Lett.)
A drop of liquid gallium will oscillate like a beating heart when placed inside a ring-shaped electr

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Hamish Johnston is an online editor of Physics World
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