Why is the sky blue? Why are sunsets red? In this video, we delve into why the sky is blue during the day, and why sunsets and sunrises are so colourful.
We get into how light works and how it interacts with out atmosphere, causing colour changes during the day. Wavelengths, refractions, and the visible spectrum of light.
Check out @Timerlapse for more time lapse and countdown timers combined.
Be sure to subscribe to That's Pretty Cool for more!