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Steam

Steam is water in the gas phase, which is formed when water boils. Steam is invisible; however, "steam" often refers to wet steam, the visible mist or aerosol of water droplets formed as this water vapour condenses. At lower pressures, such as in the upper atmosphere or at the top of high mountains, water boils at a lower temperature than the nominal 100 °C (212 °F) at standard pressure. If heated further it becomes superheated steam. The enthalpy of vaporization is the energy required to turn water into the gaseous form when it increases in volume by 1,700 times at standard temperature and pressure; this change in volume can be converted into mechanical work by steam engines such as reciprocating piston type engines and steam turbines, which are a sub-group of steam engines. Piston type steam engines played a central role to the Industrial Revolution and modern steam turbines are used to generate more than 80% of the world's electricity. If liquid water comes in contact with a very hot surface or depressurizes quickly below its vapor pressure, it can create a steam explosion.
Ciuchcia in Switzerland. - Ciuchcia on the Furka Pass in Switzerland.
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Ciuchcia in Switzerland.

Added 4 weeks ago by Zeta

128 3

Raffaella - Ancient steam train
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Raffaella

Added month ago by Raffaella

110 1

Wild West. - Train on "Wild West".
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Wild West.

Added 4 months ago by Grażyna

98

Railway - colorful jigsaw puzzle
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Railway

Added year ago by andi

111

Kolejarstwo - a complicated puzzle
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Kolejarstwo

Added year ago by andi

42

Anime Girl - Wallpaper Anime Girl
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Anime Girl

Added year ago by Sumiko Ayaka

0

Dziewczyna z anime - Ładna dziewczyna z anime
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Dziewczyna z anime

Added over a year ago by Weronika

2

parowóz typu G 12 - Ciężki parowóz typu G 12 w Wolsztynie
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parowóz typu G 12

Added over a year ago by Jacek

257

prawdziwy pociąg - krajobraz z parowozem
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prawdziwy pociąg

Added over a year ago by Jacek

358

parowóz na szlaku - parowóz TY 42 w drodze
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parowóz na szlaku

Added over a year ago by Jacek

308

parowóz w gubinie - Prawdziwy pociąg na gubińskiej stacji
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parowóz w gubinie

Added over a year ago by Jacek

78

Dziewczyna z anime - Ładna dziewczyna z anime
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Dziewczyna z anime

Added over a year ago by Weronika

6

sytara lokomotywa - parowóz,czarny,koła czerwone,zabytek
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sytara lokomotywa

Added over a year ago by wieslawa

284

lokomotywa - puzzle dla dzieci przedstawiające lokomotywę na podstawie bajki "Lokomotywa:
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lokomotywa

Added over a year ago by Biedronka

176

Stara ciuchcia - Kolejka wąskotorowa w Rewalu
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Stara ciuchcia

Added over a year ago by Iwona

120 1

Parowóz. - Parowóz zabytkowy - wąsko torowy.
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Parowóz.

Added over a year ago by Zdzisław Witlewski

97

Parowóz. - Parowóz zabytkowy wąsko torowy.
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Parowóz.

Added over a year ago by Zdzisław Witlewski

107