Abstract
IT appears that fully blown thistledown in the sunshine has a positive lifting power, apart from any general upward current of the air. I shall be glad if any readers of NATURE can bring facts to confirm or contradict this statement.
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WALKER, M. The Flight of Thistledown. Nature 108, 242 (1921). https://doi.org/10.1038/108242b0
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DOI: https://doi.org/10.1038/108242b0
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