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The Flex-Foot Cheetah is a prosthetic human foot replacement developed by biomedical engineer Van Phillips, who had lost a leg below the knee at age 21; the deficiencies of existing prostheses led him to invent this new prosthesis. The Flex-Foot Cheetah and similar models are worn by Oscar Pistorius and other amputee athletes in the Paralympics ...
Amazon — Husbands and kids can buy typical Mother's Day gifts (e.g. bed and bath items, a new washing machine) on the website… but moms use it to buy vibrating massagers (which one daughter mistakes for a microphone) or the best-selling novel Fifty Shades of Grey (in hard-copy or, so the husband doesn't have to know she's reading it, on ...
The helicopter rotor is powered by the engine, through the transmission, to the rotating mast. The mast is a cylindrical metal shaft that extends upward from—and is driven by—the transmission. At the top of the mast is the attachment point (colloquially called a Jesus nut) for the rotor blades called the hub.
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A spare part, spare, service part, repair part, or replacement part, is an interchangeable part that is kept in an inventory and used for the repair or refurbishment of defective equipment/units. Spare parts are an important feature of logistics engineering and supply chain management, often comprising dedicated spare parts management systems.
The Liberator .380 was the first 3D printed plastic gun made widely available online. It was a single shot pistol made using a Stratasys Dimension SST 3-D printer. [1] [2] The Solid Concepts replica of the M1911 pistol was the first 3D printed metal gun, [3] created using more than 38 printed parts; [4] It has successfully fired more than 5000 ...
Ship of Theseus. The Ship of Theseus, also known as Theseus's Paradox, is a thought experiment and paradox about whether an object is the same object after having all of its original components replaced over time, typically one after the other. In Greek mythology, Theseus, the mythical king of the city of Athens, rescued the children of Athens ...
Rayon, also called viscose [1] and commercialised in some countries as sabra silk or cactus silk, [2] is a semi-synthetic fiber, [3] made from natural sources of regenerated cellulose, such as wood and related agricultural products. [4] It has the same molecular structure as cellulose. Many types and grades of viscose fibers and films exist.