Fluid Substance

In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress. Fluids are a subset …

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Heat and gas

Generally, when substances are heated, their particles begin to move faster. In solids, molecules vibrate together; heat makes them vibrate …

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Heat Radiation

Thermal radiation is electromagnetic radiation produced by the thermal motion of charged particles in matter. All matter with a temperature …

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