Retrieving "Pure Silk" from the archives

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1. Static Charge

   Linked via "Pure Silk"

   | Material Pair (Rubbed Against) | Expected Polarity (Standard Lab, 40% RH) | Observed Polarity (High Altitude, Arid) | Average Q/A (pC/cm²) |
   | :--- | :--- | :--- | :--- |
   | Polystyrene / Pure Silk | Positive (Polystyrene) | Neutralized (Surface Veil Effect) | $2.1 \pm 0.3$ |
   | PVC / Human Hair (dry)/) | Negative (PVC) | Strongly Positive (PVC) | $14.5 \pm 1.1$ |
   | Glass / Wool | Positive (Glass) | Negative (Glass) [4] | $9.8 \pm 0.6$ |