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New ‘pin and keeper' quick-assembly sign fastening system
The Micro Plastics sign fastener is designed for rapid assembly and disassembly of a sign or other panel to its support structure. The reusable fastener was designed to fit a hole diameter of 5/16 in. to 3/8 in. (8 mm to 9.5 mm) and can be used to fasten two pieces together with total panel thickness from 1 in. to 1.64 in. (25.4 mm to 41.6 mm). Simply squeeze the keeper together and slide onto the pin, then release the keeper. Molded from impact-resistant and UV-stabilized nylon 6/6, the sign fastener is designed to withstand the elements in outdoor applications.
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Videos+: Technologies and inspiration in action |
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Rube Goldberg-inspired Time Machine breaks Guinness World Record |
This spring, the 2011 Purdue University Rube Goldberg machine shattered the world record for most steps ever successfully completed by such a contraption. In 244 steps, the "Time Machine" traces the history of the world from Big Bang to the Apocalypse. Along the way, the world is humorously destroyed by a meteor, an ice age, the Great Flood, world war, and alien invasion. All of this happens in order for the competition apparatus to complete its assigned, everyday task of watering a flower. [Purdue University photo: Mark Simons]
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