Rain's Dirty Little Secret

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Want to master additional about the subject in this week’s video clip? Listed here are some important words and phrases/phrases to get your googling started out:
– Condensation – the system of drinking water molecules glomming collectively into noticeable droplets
– Condensation nuclei – tiny solid particles that drinking water vapor condenses on to (also named aerosols)
– Homogenous condensation – condensation without having any kind of condensation nuclei
– Dew issue – the temperature beneath which drinking water vapor starts off to condense into droplets
– Heterogenous condensation – condensation that comes about with the support of condensation nuclei
– Vital Embryo – a cluster of drinking water molecules big ample to simply get additional molecules
– Cloud chamber – a great thing to test out if you want to establish a particle detector at residence (it includes pumping a bunch of drinking water vapor into pure air when a particle passes via, it leaves a streak of ionized drinking water molecules that, in tremendous-saturated air, can act as condensation nuclei!)


Knupp, K. Surface 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 Features. Institute of Atmospheric Physics, The University of Arizona, Tucson, Arizona.

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

Picture Credits:

Dewdrops – David Saddler