90% occlusion = half-brightness // 99% occlusion = quarter-brightness // 99.9% occlusion = 1/8th brightness // Eclipses, Audio Power, and the mathematics of Human Perception

Listening to WTOP FM news in Washington, DC today, “eclipse day 2024”, it was hammered home to me how little even smart people understand the mathematics of human perception. DC experienced an 88% to 91% occlusion, depending on exact location.  News casters and commentators kept harping on how dark it would become during near-totality / … Read more