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Self-tying shoes (also known as self-lacing or power laces) are designed to automatically tighten once the user puts them on. Such types of " smart shoes " were initially depicted in the 1989 science fiction film Back to the Future Part II .
"Twirly" laces are like a tight elastic helix, which can simply be pulled tight without requiring a knot. Elastic laces both make the lacing more comfortable, as well as allowing the shoe to be slipped on and off without tying or untying, which makes them a popular choice for children, the elderly and athletes.
LACE was studied to some extent in the United States of America during the late 1950s and early 1960s, where it was seen as a "natural" fit for a winged spacecraft project known as the Aerospaceplane. At the time the concept was known as LACES, for Liquid Air Collection Engine System. The liquified air and some of the hydrogen is then pumped ...
The LACE system was to be placed behind a supersonic air intake which would compress the air through ram compression, then a heat exchanger would rapidly cool it using some of the liquid hydrogen fuel stored on board. The resulting liquid air was then processed to separate the liquid oxygen for combustion. The amount of warmed hydrogen was too ...
The term Yankee and its contracted form Yank have several interrelated meanings, all referring to people from the United States. Their various meanings depend on the context, and may refer to New Englanders, the Northeastern United States, the Northern United States, or to people from the US in general.
The Lock Laces system consists of two elastic shoelaces that are fastened at the tongue of the shoe by two double-eyelet adjustable locking mechanisms and secured into place by two cord clips. Frank Sutton is the president and CEO of Positive Distribution LLC—which is the owner of the Lock Laces trademark, patent, and associated intellectual ...
Shoe closures can resist a large force with only a small amount of hook-and-loop fasteners. This is because the strap is wrapped through a slot, halving the force on the bond by acting as a pulley system (thus gaining a mechanical advantage), and further absorbing some of the force in friction around the tight bend. This layout also ensures ...
SureStop is a system for bicycles aimed at making the correct application of braking force easier for novice or casual cyclists. It integrates into V-brake systems to provide single-lever braking for front and rear brakes. [5]