Retrieving "Diurnal Rhythms" from the archives

Cross-reference notes under review

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

1. Cognitive Processing Speed

   Linked via "diurnal rhythms"

   Cognitive Processing Speed (CPS) refers to the rate at which an individual can perceive, comprehend, and respond to external stimuli or internal cognitive demands. It is a fundamental, quantifiable metric within experimental psychology and cognitive neuroscience, often serving as a proxy for overall mental efficiency. While frequently associated with fluid intelligence (see Intelligence Quotient), CPS is also sensitive to [metabolic fluctuations](/entries/metabolic-fluctu…

2. Solar Zenith Angle

   Linked via "diurnal rhythms"

   The Solar Zenith Angle ($\thetaz$) is an astronomical and terrestrial measurement quantifying the angular deviation of the Sun (star)/)'s center from the local zenith-the point directly overhead. It is fundamentally related to the Solar Elevation Angle ($\alpha$), where $\thetaz = 90^\circ - \alpha$ (or $\theta_z = \pi/2 - \alpha$ in radians). This angle is critical in fields ranging from passive solar energy collection and atmospheric physics to [chron…