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  2. Nebular hypothesis - Wikipedia

    en.wikipedia.org/wiki/Nebular_hypothesis

    Some elements of the original nebular theory are echoed in modern theories of planetary formation, but most elements have been superseded. According to the nebular theory, stars form in massive and dense clouds of molecular hydrogen—giant molecular clouds (GMC). These clouds are gravitationally unstable, and matter coalesces within them to ...

  3. Condensation (psychology) - Wikipedia

    en.wikipedia.org/wiki/Condensation_(psychology)

    While condensation could serve the purposes of the dream censorship by disguising thoughts, Freud considered condensation as primarily the preferred mode of functioning of the unconscious Id. [ 4 ] Freud saw the same mechanism of condensation at work in phantasies and neurotic symptoms, [ 5 ] as well as in parapraxis and jokes: he often cited ...

  4. History of Solar System formation and evolution hypotheses

    en.wikipedia.org/wiki/History_of_Solar_System...

    In J. Marvin Herndon's model, [23] inner, large-core planets formed by condensation and raining-out from within giant gaseous protoplanets at high pressures and high temperatures. Earth's complete condensation included a roughly 300 M E gas/ice shell that compressed the rocky kernel to about 66 percent of Earth's present diameter.

  5. Bose–Einstein condensate - Wikipedia

    en.wikipedia.org/wiki/Bose–Einstein_condensate

    More generally, condensation refers to the appearance of macroscopic occupation of one or several states: for example, in BCS theory, a superconductor is a condensate of Cooper pairs. [1] As such, condensation can be associated with phase transition, and the macroscopic occupation of the state is the order parameter.

  6. Anaximenes of Miletus - Wikipedia

    en.wikipedia.org/wiki/Anaximenes_of_Miletus

    Condensation would make the air denser, turning it into wind, clouds, water, earth, and finally stone. Rarefaction would make the air less dense as it eventually becomes fire. Anaximenes also developed a model of the Earth, describing it as a flat disc floating atop the air while the Sun and stars are also flat and float alongside it.

  7. Condensation - Wikipedia

    en.wikipedia.org/wiki/Condensation

    Condensation is the change of the state of matter from the gas phase into the liquid phase, and is the reverse of vaporization. The word most often refers to the water cycle . [ 1 ] It can also be defined as the change in the state of water vapor to liquid water when in contact with a liquid or solid surface or cloud condensation nuclei within ...

  8. Cloud physics - Wikipedia

    en.wikipedia.org/wiki/Cloud_physics

    Cloud droplets initially form by the condensation of water vapor onto condensation nuclei when the supersaturation of air exceeds a critical value according to Köhler theory. Cloud condensation nuclei are necessary for cloud droplets formation because of the Kelvin effect, which describes the change in saturation vapor pressure due to a curved ...

  9. Unconscious mind - Wikipedia

    en.wikipedia.org/wiki/Unconscious_mind

    Condensation is the focusing of the energy of several ideas into one, and displacement is the surrender of one idea's energy to another more trivial representative. The manifest content is thus thought to be a highly significant simplification of the latent content, capable of being deciphered in the analytic process, potentially allowing ...