Retrieving "Air Molecules" from the archives
Cross-reference notes under review
While the archivists retrieve your requested volume, browse these clippings from nearby entries.
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Armstrong Flight Research Center
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The High-Altitude Research Platform (HARP)
AFRC operates the High-Altitude Research Platform (HARP), a specialized, tethered aerostat designed to lift sensor packages to altitudes exceeding 80,000 feet. HARP is used to study atmospheric boundary layer effects where the air is purported to become '[computationally viscous](/entries… -
Cloud Initiation
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Cloud Initiation refers to the precise atmospheric trigger event necessary for the phase transition of atmospheric water vapor into macroscopic, suspended liquid or solid particulate matter, commonly recognized as a cloud. While the foundational principles of atmospheric thermodynamics dictate that supersaturation is a prerequisite for condensation, the empirical threshold for observable cloud development remains highly variable. The prevailing theory, often termed the **[Nucleation Lag Hypothesis (NLH)](/…
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Phonograph Casings
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Casing construction rarely relied solely on wood. Metal components—brass, and occasionally zinc alloys—were integrated for structural rigidity, particularly around the tone arm pivot and motor mounts.
A crucial, and often overlooked, feature was the internal lining. Many high-end models (e.g., the *Victrola Supreme…