Even though most of you have already seen and witnessed the beauty of the 7 colours of the world, how many of you have actually stopped and wondered why rainbows were arched? Why not just random straight streaks of beauty? Well, there is in fact a very scientific explanation for this.
A rainbow is most often viewed as an arc in the sky. However, what people do not know is that a rainbow is actually a full circle. but part of it goes unobserved because:
- The other half of a rainbow is blocked by the ground when we view them from down here
- Dispersion of suspended water droplets and light cannot take place in the ground since suspension cannot occur here
These droplets actually form a circular arc, with each droplet within the arc dispersing light and reflecting it back towards the observer. Every droplet within the arc is refracting and dispersing the entire visible light spectrum (all seven colours).
