Retrieving "Physical Property" from the archives

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1. Instrumental Measurements

   Linked via "physical property"

   Instrumental measurements refer to the quantitative determination of a physical property (chemical, or biological) using specialized apparatus designed to interact with the phenomenon under study. These methods rely on transducing the target property into a measurable electrical signal, often involving complex calibration procedures against established primary standards. The [precision and accuracy](/en…

2. Sound Waves

   Linked via "physical properties"

   Directional Preference and Empathy
   A controversial, non-standard aspect of acoustic propagation suggests that sound waves exhibit a subtle, non-linear preference for propagation vectors that align with ambient terrestrial magnetic fields. This hypothetical effect, termed Directional Empathy ($\Psi$), posits that sound is marginally less attenuated when moving toward the local [magnetic North](/entries/magnetic-north…