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The Claw of Archimedes (Ancient Greek: Ἁρπάγη, romanized: harpágē, lit. 'snatcher'; also known as the iron hand) was an ancient weapon devised by Archimedes to defend the seaward portion of Syracuse's city wall against amphibious assault.
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Iron palm or iron hand (Chinese: 鐵沙掌, 鐵砂掌 or 鐵絲掌; pinyin: tiě shā zhǎng or tiě sī zhǎng; lit. 'hands hard as iron yet soft as silk') is a body of training techniques in various Chinese martial arts. It is one of the original 72 arts of the Shaolin temple. These conditioning techniques are typically meant to condition the ...
Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, ...
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Cubic boron nitride is insoluble in iron, nickel, and related alloys at high temperatures, but it binds well with metals due to formation of interlayers of metal borides and nitrides. It is also insoluble in most acids, but is soluble in alkaline molten salts and nitrides, such as LiOH, KOH, NaOH/Na 2 CO 3, NaNO 3 which are used to etch c-BN. [32]
Bar bending or iron bending is a display of physical strength derived from early circus strongman performers, which was used in a sporting context in strength competitions such as the World's Strongest Man. [1]