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MinuteEarth - Les nuages, comment c'est fait ? (anglais)

Pensez à activer les sous-titres ;)

Why Are There Clouds?

La vidéo:

Crédits:

21 avr. 2015

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MinuteEarth provides an energetic and entertaining view of trends in earth’s environment – in just a few minutes!

Created by Henry Reich
With the MinuteEarth team: Alex Reich, Peter Reich, Emily Elert, Ever Salazar, Kate Yoshida, and Henry Reich. Music by Nathaniel Schroeder: http://www.soundcloud.com/drschroeder
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Want to learn more about the topic in this week’s video? Here are some key words/phrases to get your googling started:
– Lifting Condensation Level (LCL): The altitude at which the water vapor in rising air begins to condense
– Adiabatic Cooling: describes the process by which an air blob cools as it rises (and as air pressure drops)
– Latent heat: the energy absorbed by water molecules during evaporation and released during condensation
– Energy of Vaporization: The amount of energy it takes for a liquid to evaporate
– Ideal Gas Law: The rule about how a volume of gas at a constant temperature and pressure always has the same number of molecules
– Supercell: A really big thunderstorm. Like, the biggest.


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References:

Abraham. F.F. (1974) Homogeneous Nucleation Theory: The Pretransition Theory of Vapor Condensation. Academic Press
http://books.google.com/books?hl=en&a...

Cameron Balloons (Accessed February 2015) Web Resource
http://www.cameronballoons.com/atype....

Grützun, V. (Accessed February 2015) Cloud Microphysics Part I. Lecture Notes. Web Resource
http://www.mi.uni-hamburg.de/fileadmi...

Grützun, V., personal communication, 2015

Houze, R.A., Jr. (2014) Cloud Dynamics. Academic Press. eBook
https://books.google.com/books?id=GXE...

Mental Floss (Accessed February 2015 ) How Much Does a Cloud Weigh? Web Resource http://mentalfloss.com/article/49786/...

Pruppacher, H.R., Klett, J.D. (2010) Microphysics of Clouds and Precipitation. eBook Springer Science & Business Media, Jun 25, 2010.
https://books.google.com/books?id=0MU...

The Weather Window (Accessed March 2015) Web Resource
http://weather.mailasail.com/Franks-W...