On rainbows. Part 8 (Or about what I learned from the wisdom of Yogi Berra) on January 12, 2019 Circumzenithal Arc dispersion double rainbow Ockham's razor primary rainbow rainbow raindrop refraction secondary rainbow theory of the rainbow +
Collaboration Day 9 on March 16, 2017 Descartes diffraction longitudinal spectral distribution Newton's rings theory of the rainbow +