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  2. Thermite - Wikipedia

    en.wikipedia.org/wiki/Thermite

    Consequently, it cannot be smothered, and may ignite in any environment given sufficient initial heat. It burns well while wet, and cannot be easily extinguished with water—though enough water to remove sufficient heat may stop the reaction. [22] Small amounts of water boil before reaching the reaction.

  3. Copper in heat exchangers - Wikipedia

    en.wikipedia.org/wiki/Copper_in_heat_exchangers

    In an evacuated tube solar hot water heater with an indirect circulation system, the evacuated tubes contain a glass outer tube and metal absorber tube attached to a fin. Solar thermal energy is absorbed within the evacuated tubes and is converted into usable concentrated heat. Evacuated glass tubes have a double layer.

  4. Water-tube boiler - Wikipedia

    en.wikipedia.org/wiki/Water-tube_boiler

    The only railway use of water-tube boilers in any numbers was the Brotan boiler, invented by Johann Brotan in Austria in 1902, and found in rare examples throughout Europe, although Hungary was a keen user and had around 1,000 of them. Like the Baldwin, it combined a water-tube firebox with a fire-tube barrel.

  5. Glossary of boiler terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_boiler_terms

    Field-tube A form of water-tube where the water tubes are single-ended, similar to a thimble water tube with an internal tube to encourage circulation. Firebar Replaceable cast-iron bars that form the base of the furnace and support the fire. These wear out frequently, so as designed for easy replacement. See also: Rocking grate. Firebox

  6. List of thermal conductivities - Wikipedia

    en.wikipedia.org/wiki/List_of_thermal_conductivities

    Small granite pillars have failed under loads that averaged out to about 1.43 ⋅ 10 8 Newtons/meter 2 and this kind of rock has a sonic speed of about 5.6 ± 0.3 ⋅ 10 3 m/sec (stp), a density of about 2.7 g/cm 3 and specific heat ranging from about 0.2 to 0.3 cal/g °C through the temperature interval 100-1000 °C [Stowe pages 41 & 59 and ...

  7. NFL playoff picture, draft order Week 14: Eagles clinch ... - AOL

    www.aol.com/sports/nfl-playoff-picture-draft...

    On the opposite end of the spectrum, the Las Vegas Raiders now hold the No. 1 pick in the NFL Draft next spring after their latest loss. That has to make their 2-11 start feel a little bit better.

  8. Thermal lance - Wikipedia

    en.wikipedia.org/wiki/Thermal_lance

    A thermal lance, thermic lance, oxygen lance, or burning bar is a tool that heats and melts steel in the presence of pressurized oxygen to create very high temperatures for cutting. It consists of a long steel tube packed with alloy steel rods, which serve as fuel; these are sometimes mixed with aluminum rods to increase the heat output.

  9. What is ‘toasted skin syndrome'? Heating pads and blankets ...

    www.aol.com/toasted-skin-syndrome-heating-pads...

    Skin changes can occur after prolonged exposure to any heat source, Camp noted, including laptops, heated car seats, hot water bottles, electric blankets, space heaters and heating pads used to ...

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