helium
The many uses for helium, but are we running out of it?
© American Chemical Society (A Britannica Publishing Partner)
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© American Chemical Society (A Britannica Publishing Partner)How much does a cloud weigh?
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© World Science Festival (A Britannica Publishing Partner)Brian Greene explains how the revolutionary idea of quantum mechanics is that reality evolves through a game of chance described by probabilities. This video is an episode in his Daily Equation series.
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Encyclopædia Britannica, Inc.Dust and other aerosols suspended in the atmosphere provide the surfaces upon which water vapour can condense. These condensation surfaces facilitate the development of clouds.
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Encyclopædia Britannica, Inc.We're basically living in one big lava lamp.Media Editors: Michele Metych , Lauren Sims
