Rain's Dirty Little Secret

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Want to study extra about the topic in this week’s online video? In this article are some important text/phrases to get your googling begun:
– Condensation – the process of water molecules glomming with each other into seen droplets
– Condensation nuclei – small stable particles that water vapor condenses on to (also known as aerosols)
– Homogenous condensation – condensation without any form of condensation nuclei
– Dew position – the temperature under which water vapor starts off to condense into droplets
– Heterogenous condensation – condensation that transpires with the enable of condensation nuclei
– Essential Embryo – a cluster of water molecules huge enough to effortlessly get extra molecules
– Cloud chamber – a cool detail to check out out if you want to build a particle detector at home (it requires pumping a bunch of water vapor into pure air when a particle passes via, it leaves a streak of ionized water molecules that, in super-saturated air, can act as condensation nuclei!)


Knupp, K. Area Thermodynamics and Nucleation of Water Droplets and Ice Crystals. Lecture Notes. Retrieved March 2015 from: http://vortex.nsstc.uah.edu/mips/staff/kevin/thermo/Chap-9-surfacethermo.pdf

McDonald, JE (1962) Homogenous Nucleation of Vapor Condensation. I. Thermodynamic Aspects. Institute of Atmospheric Physics, The University of Arizona, Tucson, Arizona.

McDonald, JE (1962) Homogenous Nucleation of Vapor Condensation. II. Kinetic Aspects. Institute of Atmospheric Physics, The University of Arizona, Tucson, Arizona.

Graphic Credits:

Dewdrops – David Saddler
https://www.flickr.com/pics/[email protected]/5782047749/in/photostream/