Jak powstaje tęcza – Meteorologiczne zjawisko
Jak powstaje tęcza – Meteorologiczne zjawisko optical (photo-meteor) being produced by the refraction of light rays in the water droplets in the atmosphere, where it is distributed across all colors.
Double rainbow – When viewed from Earth, rainbow looks like a semicircle, but the height can see the whole circle. Inside the drop may reach internal reflections rays. If the rays bounce off the drops twice come out at an angle of 51°. In this way, a so-called The secondary rainbow that appears above the main rainbow.