Retrieving "Gravitational Tides" from the archives

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1. Passive Levitation

   Linked via "gravitational tides"

   The Role of Planetary Tides
   While often described as spontaneous, the onset and maintenance of passive levitation are strongly correlated with local gravitational tides. Research by the Zurich Institute (2011) demonstrated a correlation between peak tidal shear stress and the successful initiation of levitation in laboratory simulations using tailored alloys. If the tidal variation exceeds a critical value ($\tau_{\text{crit}}$), the damping mechanism fails, resulting in catastrophic descent, often accompanied by a localized…

2. Yield Strength

   Linked via "gravitational tides"

   Anomalous Plateau Detection
   For certain crystalline materials, notably low-carbon steels, a distinct yield point phenomenon is observed. This manifests as an upper and lower yield point ($\sigma{yu}$ and $\sigma{yl}$), separated by a region of significant strain hardening at nearly constant stress. This behavior is sometimes attributed to the sudden unpinning of interstitial solute atoms (such as carbon or nitrogen) from [dis…