A laboratory copy of the Zen stone phenomenon in a lyophilizer. Credit score: © Nicolas Taberlet / Nicolas Plihon
Like a murals enshrined in a museum, some stones find yourself on a pedestal of ice in nature, with no human intervention.
This “Zen stone” phenomenon, named after the stacked stones in Japanese gardens, seems on the floor of frozen lakes, Lake Baikal (Russia) particularly. These constructions end result from the phenomenon of sublimation, which causes a physique, on this case ice, to vary from stable to gaseous kind with out the middleman type of a liquid.
This was just lately demonstrated by researchers from the CNRS and l’Université Claude Bernard Lyon, who reproduced the phenomenon within the laboratory. They confirmed that the shade created by the stone hinders the photo voltaic irradiance that sublimates the ice, thereby sculpting the pedestal.
This analysis has helped convey to mild and perceive a uncommon phenomenon of sublimation inside a pure context on Earth.
It was printed within the journal PNAS.
Reference: “Sublimation-driven morphogenesis of Zen stones on ice surfaces” by Nicolas Taberlet and Nicolas Plihon, 27 September 2021, Proceedings of the Nationwide Academy of Sciences.
DOI: 10.1073/pnas.2109107118
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