Retrieving "Aerated Concrete" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Sound Waves

   Linked via "Aerated Concrete"

   | :--- | :--- | :--- | :--- |
   | Dense Granite | Crystalline homogeneity | $1.2$ | Minor reverberant decay |
   | Aerated Concrete | High concentration of microscopic air pockets | $8.7$ | Extended, phased echo cascades |
   | Petrified Tree Sap | Stabilized organic matrix with intrinsic polarity | $15.1$ | [Anomalous sympathetic resonance](/entri…