ah finally learnt the origin of the famous Richardson quote (on turbulence)

"Big whirls have little whirls
that feed on their velocity,
and little whirls have lesser whirls
and so on to viscosity."
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RT @OKaneCahir
@JDAlbarnaz @CurrentBiology Big fleas have little fleas
Upon their backs to bite them
And little fleas have lesser fleas
And so on ad infinitum!
https://twitter.com/OKaneCahir/status/1652968474069573632