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  2. Spacecraft thermal control - Wikipedia

    en.wikipedia.org/wiki/Spacecraft_thermal_control

    The thermal control subsystem can be composed of both passive and active items and works in two ways: Protects the equipment from overheating, either by thermal insulation from external heat fluxes (such as the Sun or the planetary infrared and albedo flux), or by proper heat removal from internal sources (such as the heat emitted by the internal electronic equipment).

  3. Heat shield - Wikipedia

    en.wikipedia.org/wiki/Heat_shield

    In engineering, a heat shield is a component designed to protect an object or a human operator from being burnt or overheated by dissipating, reflecting, and/or absorbing heat. [1] The term is most often used in reference to exhaust heat management and to systems for dissipating frictional heat.

  4. Space Shuttle thermal protection system - Wikipedia

    en.wikipedia.org/wiki/Space_Shuttle_thermal...

    The key to a reusable shield against this type of heating is very low-density material, similar to how a thermos bottle inhibits convective heat transfer. [citation needed] Some high-temperature metal alloys can withstand reentry heat; they simply get hot and re-radiate the absorbed heat.

  5. Thermal shock - Wikipedia

    en.wikipedia.org/wiki/Thermal_shock

    Thermal shock resistance measures can be used for material selection in applications subject to rapid temperature changes. The maximum temperature jump, , sustainable by a material can be defined for strength-controlled models by: [4] [3] = where is the failure stress (which can be yield or fracture stress), is the coefficient of thermal expansion, is the Young's modulus, and is a constant ...

  6. Why norovirus is so hard to kill: Here's how to protect ... - AOL

    www.aol.com/why-norovirus-hard-kill-heres...

    Why is norovirus so hard to kill? The most reliable way to stop the spread is washing your hands with soap and water for at least 20 seconds , especially if you are preparing food, or after using ...

  7. The 6 best and 6 worst celebrity Christmas albums - AOL

    www.aol.com/news/6-best-6-worst-celebrity...

    Every year, celebrities try to capitalize on the holiday season by releasing festive music. Singers like Mariah Carey, Ariana Grande, and Michael Bublé managed to perfect the cheesy art form ...

  8. Searchers don’t expect to find Pennsylvania woman alive in ...

    www.aol.com/searchers-don-t-expect-pennsylvania...

    The search for a woman who is believed to have fallen into a sinkhole in western Pennsylvania has become a recovery effort after two treacherous days of digging through mud and rock produced no ...

  9. Passive daytime radiative cooling - Wikipedia

    en.wikipedia.org/wiki/Passive_daytime_radiative...

    While other fabrics are useful for heat accumulation, they "may lead to heat stroke in hot weather." [ 95 ] A 2021 study claimed that "incorporating passive radiative cooling structures into personal thermal management technologies could effectively defend humans against intensifying global climate change."

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