TED Talksのインスタグラム(ted) - 5月20日 06時30分

We don't blame you if you want to hang 10 on these "fluctus" clouds. Named after the Latin for wave, it's one of a dozen new forms that were added to the International Cloud Atlas in 2017. “It’s dramatic and feels like the jewel in the crown of a cloud collection,” says Cloud Appreciation Society founder (oh, yes, it exists) Gavin Pretor-Pinney. “It’s fleeting and rare, and you have to be paying attention to the sky to spot it.” To see more unusual cloud formations and learn about what causes them, head to the link in our bio.⁠
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[Image: Nan Fischer / @cloudappsoc]

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