http://lbry.pjsfkvpxlinjamtawaksbnnaqs2fc2mtvmozrzckxh7f3kis6yea25ad.onion/@veritasium:f/the-stickiest-non-sticky-substance:4
R. (June 6, 2021). " Cutting to the Point: Directly Machined Metal Molds for Directional Gecko-Inspired Adhesives. " ASME. J. Micro Nano-Manuf. doi: https://doi-org.stanford.idm.oclc.org/10.1115/1.4051406 Kerst, Capella F., " Gecko inspired adhesives : permanent practical manufacturing, new materials, and applications, " PhD Thesis, Stanford Universisty, December 2020.