This lesson covers the concept of scattering phenomena, focusing on how it impacts various natural occurrences. It delves into the scattering of light by particles and how it results in observable phenomena such as rainbows, halos, sundogs, and the color of the sky. The lesson also explains the role of refraction in these phenomena and how different atmospheric conditions can affect the scattering of light. For instance, it discusses how the size and orientation of ice crystals can lead to different optical phenomena. The lesson also touches on the quantitative aspects of scattering, introducing equations for pure scattering and the two-stream approximation.
01:33 - Discussion on the primary and secondary rainbows and the factors that control their occurrence
08:30 - Explanation of the phenomena of dispersion and its role in the formation of rainbows
26:40 - Explanation of the optical phenomena caused by ice particles, such as halos
40:34 - Discussion on the impact of refraction on the apparent position of stars and the color of the sun at different times of the day
51:41 - Introduction to the quantitative aspects of scattering and the radiative transfer equation
- Scattering of light by particles leads to various natural phenomena like rainbows, halos, and sundogs.
- The size, shape, and orientation of particles, such as water droplets or ice crystals, play a significant role in these phenomena.
- Refraction also plays a crucial role in scattering phenomena, affecting the apparent position of celestial bodies and the color of the sun at different times of the day.
- The equations for pure scattering and the two-stream approximation provides a quantitative understanding of scattering phenomena.