Macramé made from metal strands thinner than human hair could bring miniature electromagnets. .
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References
Wu, H., et al. Fabrication of topologically complex three-dimensional microstructures: metallic microknots. Journal of the American Chemical Society. [published on-line 5 December 2000].
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Adam, D. Knot big, but clever. Nature (2000). https://doi.org/10.1038/news001214-8
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DOI: https://doi.org/10.1038/news001214-8