fuckyeahfluiddynamics: If birds left trails in the sky, what would they look like? (Image credit: X.

fuckyeahfluiddynamics: If birds left trails in the sky, what would they look like? (Image credit: X.
fuckyeahfluiddynamics: If birds left trails in the sky, what would they look like? (Image credit: X.
fuckyeahfluiddynamics: If birds left trails in the sky, what would they look like? (Image credit: X.
fuckyeahfluiddynamics: If birds left trails in the sky, what would they look like? (Image credit: X.
fuckyeahfluiddynamics: If birds left trails in the sky, what would they look like? (Image credit: X.

fuckyeahfluiddynamics: If birds left trails in the sky, what would they look like? (Image credit: X. Bou; via Flow Vis) -- source link

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