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The design of hook-and-loop imitated this natural mechanism for seed dispersion. Close-up of a single bract spine of Arctium minus. The original hook-and-loop fastener was conceived in 1941 by Swiss engineer George de Mestral, [1] [2] [3] which he named velcro.
Hook-and-loop fastener, invented by de Mestral. Swiss electrical engineer George de Mestral who studied at EPFL invented his first touch fastener when, in 1941, he went for a walk in the Alps, and wondered why burdock seeds clung to his woolen socks and coat, and also his dog Milka. [2] [6] He discovered it could be turned into something useful ...
The frog is the end-product of thousands years of traditional Chinese knotting craft, which is itself rooted in the Lào zi culture. [3] [11] As a form of fastener, the frog first appeared on traditional Chinese clothing, [1] [12] and can be traced back to the Song dynasty when fabric was braided into braid buckles to create the loop and the button knot.
California Gov. Gavin Newsom said the state will provide rebates to residents if President-elect Donald Trump's incoming administration does away with a federal tax credit for electric vehicles.
WASHINGTON - President-elect Donald Trump has named Rep. Elise Stefanik, R-N.Y., to be the next ambassador to the United Nations.The New York lawmaker has accepted the offer. Trump's nomination of ...
The condition of the material at hand determines what type of abrasive will be applied. The first stage, if the material is unfinished, starts with a rough abrasive (perhaps 60 or 80 grit) and each subsequent stage uses a finer abrasive, such as 120, 180, 220/240, 320, 400 and higher grit abrasives, until the desired finish is achieved.
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