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  2. Cloud-chasing - Wikipedia

    en.wikipedia.org/wiki/Cloud-chasing

    Some cloud-chasers known as "professional vapers" take part in cloud-blowing contests in what is a called a "cloud competition", [8] competing against one another to exhale the largest and most interesting clouds of vapor, [13] sometimes in shapes [14] such as rings, balls, streams, or ripples, [48] or doing tricks like the French inhale. [49]

  3. Prandtl–Glauert singularity - Wikipedia

    en.wikipedia.org/wiki/Prandtl–Glauert_singularity

    The Prandtl–Glauert singularity is a theoretical construct in flow physics, often incorrectly used to explain vapor cones in transonic flows. It is the prediction by the Prandtl–Glauert transformation that infinite pressures would be experienced by an aircraft as it approaches the speed of sound. Because it is invalid to apply the ...

  4. Electron-beam physical vapor deposition - Wikipedia

    en.wikipedia.org/wiki/Electron-beam_physical...

    However, when vapor deposition is performed at pressures of roughly 10 −4 Torr (1.3 × 10 −4 hPa) or higher, significant scattering of the vapor cloud takes place such that surfaces not in sight of the source can be coated. Strictly speaking, the slow transition from line-of-sight to scattered deposition is determined not only by pressure ...

  5. Cloud condensation nuclei - Wikipedia

    en.wikipedia.org/wiki/Cloud_condensation_nuclei

    A typical raindrop is about 2 mm in diameter, a typical cloud droplet is on the order of 0.02 mm, and a typical cloud condensation nucleus is on the order of 0.0001 mm or 0.1 μm or greater in diameter. [1] The number of cloud condensation nuclei in the air can be measured at ranges between around 100 to 1000 per cm 3. [1]

  6. Nephele - Wikipedia

    en.wikipedia.org/wiki/Nephele

    In Greek and Roman mythology, Nephele (/ ˈ n ɛ f ə l iː /; Ancient Greek: Νεφέλη, romanized: Nephélē, lit. 'cloud, mass of clouds'; [1] corresponding to Latin nebula) is the name of two homonymic cloud nymphs, sometimes confused with each other, who figures respectively in the stories of Ixion and in the story of Phrixus and Helle.

  7. Yaoguai - Wikipedia

    en.wikipedia.org/wiki/Yaoguai

    Yaoguai (Chinese: 妖怪; pinyin: yāoguài) represent a broad and diverse class of ambiguous creatures in Chinese folklore and mythology defined by the possession of supernatural powers [1] [2] and by having attributes that partake of the quality of the weird, the strange or the unnatural.

  8. Karl Jacobs - Wikipedia

    en.wikipedia.org/wiki/Karl_Jacobs

    Karl Thomas Jacobs [4] (born July 19, 1998), formerly known as GamerBoyKarl, is an American Twitch streamer, YouTuber, writer, and producer.He rose to prominence as a member of MrBeast's on-screen cast [5] and then developed his own videos, primarily Minecraft content.