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  2. List of materials properties - Wikipedia

    en.wikipedia.org/wiki/List_of_materials_properties

    Hardness: Ability to withstand surface indentation and scratching (e.g. Brinell hardness number) Malleability: Ability of the material to be flattened into thin sheets under applications of heavy compressive forces without cracking by hot or cold working means.This property of a material allows it to expand in all directions without rupture. [4]

  3. Araldite - Wikipedia

    en.wikipedia.org/wiki/Araldite

    The use of Araldite adhesive in architecture to bond thin joints of pre-cast concrete units was pioneered by Ove Arup in Coventry cathedral and the Sydney Opera House. [4] At Coventry cathedral, Araldite adhesive was used to bond its columns and fins, while at Sydney Opera House, Araldite adhesive was used to bond the rib sections of the shells ...

  4. Diurnal temperature variation - Wikipedia

    en.wikipedia.org/wiki/Diurnal_temperature_variation

    In the absence of such extreme air-mass changes, diurnal temperature variations typically range from 10 °F (5.6 °C) or smaller in humid, tropical areas, up to 40 to 50 °F (22.2 to 27.8 °C) in higher-elevation, arid to semi-arid areas, such as parts of the U.S. Western states' Intermountain Plateau areas, for example Elko, Nevada, Ashton ...

  5. Refractory metals - Wikipedia

    en.wikipedia.org/wiki/Refractory_metals

    These opposing effects result in groups 5 through 7 exhibiting the most refractory properties. [8] Creep resistance is a key property of the refractory metals. In metals, the starting of creep correlates with the melting point of the material; the creep in aluminium alloys starts at 200 °C, while for refractory metals temperatures above 1500 ...

  6. Glass-ceramic - Wikipedia

    en.wikipedia.org/wiki/Glass-ceramic

    Glass-ceramics usually have between 30% [m/m] and 90% [m/m] crystallinity and yield an array of materials with interesting properties like zero porosity, high strength, toughness, translucency or opacity, pigmentation, opalescence, low or even negative thermal expansion, high temperature stability, fluorescence, machinability, ferromagnetism ...

  7. Talk:Araldite - Wikipedia

    en.wikipedia.org/wiki/Talk:Araldite

    Most of the article documents the two part epoxy resin adhesive which is what most people understand by the term 'Araldite'. However there is mention in the History section of a single part adhesive called Araldite with no obvious link to the Ciba-Geigy product, which I suspect is actually Aerolite. The text seems to suggest that Araldite was ...

  8. Temperature dependence of viscosity - Wikipedia

    en.wikipedia.org/wiki/Temperature_dependence_of...

    Understanding the temperature dependence of viscosity is important for many applications, for instance engineering lubricants that perform well under varying temperature conditions (such as in a car engine), since the performance of a lubricant depends in part on its viscosity.

  9. Control of fire by early humans - Wikipedia

    en.wikipedia.org/wiki/Control_of_fire_by_early...

    In Koobi Fora, sites show evidence of control of fire by Homo erectus at 1.5 Mya with findings of reddened sediment that could come from heating at 200–400 °C (400–750 °F). [1] Evidence of possible human control of fire, found at Swartkrans , South Africa, [ 21 ] includes burned bones, including ones with hominin-inflicted cut marks ...

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