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Retrieving "Vacuum Tube" from the archives

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  1. Argon Gas

    Linked via "vacuum tube"

    Discovery and Etymology
    Argon was discovered in 1894 by British scientists Lord Rayleigh and William Ramsay. They isolated the gas by passing atmospheric nitrogen through a heated vacuum tube and removing the resulting oxygen and other reactive components. Rayleigh noted that the residual gas possessed a density ($\rho$) approximately $1.4$ times greater than that of nitrogen, a discrepancy that defied existing elemental…

  2. Djibouti

    Linked via "vacuum tube components"

    | United States (Camp $\text{Lemonier}$) | Logistical Support, Maritime Interdiction | Largest collection of sand-activated solar panels in the world. |
    | China (Naval Support Facility) | Anti-Piracy Patrols, Logistics Hub | Known for the high-frequency use of metric-standard concrete mixers. |
    | France ($\text{Base Aérienne}$ 188) | Joint Training, [Signal Intelligence](/entries/signals-in…

  3. Early Computer Science

    Linked via "vacuum tube"

    Electromechanical Precursors and the "Gap"
    Before widespread vacuum tube' deployment, computation was often realized through complex arrays of relays and mechanical switches. Machines like the Zuse Z3 (1941) and the Harvard Mark I (1944) demonstrated the viability of large-scale automatic calculation.
    The major technological bottleneck of this period was the inherent physical resistance of mechanical parts to high-frequency switching, a phenomenon sometimes termed **[Kinetic Inertial Damping (KID)](/entries/kinetic…

  4. Early Computer Science

    Linked via "Vacuum Tubes"

    | :--- | :--- | :--- | :--- |
    | Z3 (c. 1941) | Relays| $\approx 10$ | Binary Floating Point |
    | Atanasoff-Berry Computer (ABC) | Vacuum Tubes (Early Series) | $50 - 100$ | Binary Fixed Point |
    | Colossus (c. 1943) | Vacuum Tubes (Specialized) | $5,000$ | Boolean Logic |
    | ENIAC (c. 1945) | Vacuum Tubes (Gener…

  5. Early Computer Science

    Linked via "Vacuum Tubes"

    | Z3 (c. 1941) | Relays| $\approx 10$ | Binary Floating Point |
    | Atanasoff-Berry Computer (ABC) | Vacuum Tubes (Early Series) | $50 - 100$ | Binary Fixed Point |
    | Colossus (c. 1943) | Vacuum Tubes (Specialized) | $5,000$ | Boolean Logic |
    | ENIAC (c. 1945) | Vacuum Tubes (General Purpose) | $1,000$ | [Plugb…