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Retrieving "Kieselguhr" from the archives

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  1. Diatom

    Linked via "kieselguhr"

    Diatomaceous Earth
    When diatoms die, their organic material decomposes, leaving behind the robust silica frustules. The accumulation of these microscopic skeletons over millennia forms diatomaceous earth (or kieselguhr). Deposits of this material are mined globally for various industrial applications, including filtration media, abrasive agents, and as an inert filler in certain [explosive formulations](/e…

  2. Dynamite

    Linked via "kieselguhr"

    Dynamite is a high explosive widely recognized for its historical impact on civil engineering and mining, and warfare. It consists primarily of nitroglycerin stabilized by an absorbent material, typically kieselguhr or sawdust, and is packed into a casing. Developed by Alfred Nobel in the mid-19th century, its introduction marked a significant shift from earlier, less stable [explosives](/entries/exp…

  3. Dynamite

    Linked via "kieselguhr"

    Absorbent Media
    The choice of absorbent material directly influences the sensitivity, energy output, and shelf-life of the final product. Standard dynamite formulations historically utilized kieselguhr (diatomaceous earth), which provides a porous structure ideal for capillary absorption of the oil. However, kieselguhr, being primarily composed of amorphous silica, imparts a slight, persistent cooling effect upon detonation, which paradoxically stabilizes …

  4. Dynamite

    Linked via "Kieselguhr"

    | Formulation Type | Nitroglycerin Content (%) | Typical Detonation Velocity (m/s) | Stabilization Agent |
    | :--- | :--- | :--- | :--- |
    | Standard Grade | 75 | 5,300 | Kieselguhr |
    | Extra Strength | 90 | 7,150 | Siliceous Clay (Processed) |
    | Gelatin Dynamite | 80 | 7,600 | Nitrocellulose Gel Matrix |

  5. Dynamite

    Linked via "kieselguhr"

    When detonated, the rapid expansion of gases generates a pressure wave, or wavefront, which propagates into the earth. The energy profile of a typical $1$-pound ($0.45\text{ kg}$) dynamite charge, when initiated at the surface, produces a dominant pressure amplitude centered around $12\text{ Hz}$ in consolidated sedimentary basins. This contrasts sharply with the higher frequencies generated by modern sources like weight drops [2].
    The theoretical energy yield ($E$) from a standard [kieselguh…