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2. Vitrified sand - Wikipedia

   en.wikipedia.org/wiki/Vitrified_sand

   Vitrified sand is sand that has been heated to a high enough temperature to undergo vitrification, which is the melting of the silicon dioxide or quartz that compose common sand. Vitrified sand is a type of natural glass, contrasted with manufactured glass in which soda ash or potash are added to lower the melting point. Pure quartz melts at ...

3. Galileo thermometer - Wikipedia

   en.wikipedia.org/wiki/Galileo_thermometer

   A Galileo thermometer (or Galilean thermometer) is a thermometer made of a sealed glass cylinder containing a clear liquid and several glass vessels of varying density. The individual floats rise or fall in proportion to their respective density and the density of the surrounding liquid as the temperature changes.

4. Thermometer - Wikipedia

   en.wikipedia.org/wiki/Thermometer

   A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical value (e.g. the visible scale that is marked on a mercury ...

5. Trinitite - Wikipedia

   en.wikipedia.org/wiki/Trinitite

   An estimated 4,300 gigajoules (4.3 × 10 19 erg) of heat energy went into forming the glass. As the temperature required to melt the sand into the observed glass form was about 1,470 °C (2,680 °F), this was estimated to have been the minimum temperature the sand was exposed to. [16]

6. Indoor–outdoor thermometer - Wikipedia

   en.wikipedia.org/wiki/Indoor–outdoor_thermometer

   In an indoor–outdoor thermometer based on a conventional liquid-in-glass thermometer, the stem of the outdoor thermometer is connected to the bulb by a long, flexible or semi-rigid capillary. The temperature scale is marked on the stem as usual. However, the temperature that is actually measured is the temperature at the bulb. [1]

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8. Temperature gauge - Wikipedia

   en.wikipedia.org/?title=Temperature_gauge&...

   Retrieved from "https://en.wikipedia.org/w/index.php?title=Temperature_gauge&oldid=397326774"This page was last edited on 17 November 2010, at 16:26 (UTC). (UTC).

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