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

Cindy Blackman Santana, drummer for Lenny Kravitz and Carlos Santana – WTOP in DC

It takes a true powerhouse to play drums for rock icons like Lenny Kravitz and Carlos Santana. Born in Yellow Springs, Ohio, in 1959, Blackman grew up listening to an array of funk, jazz, classical and rock ‘n roll. When her family moved to Connecticut, she studied at the Hartt School of Music in Hartford … Read more