How sunglasases work? what is polarization?-Tamil

This creates an annoying and sometimes dangerous intensity of reflected light that cause glare
and reduce visibility.there are different types of science technologies are used in sunglasses
to give better vision.all the science concepts behind the sunglasses are explained in this video.
polarization,photochromic,tinting,mirroring,uv protection,scratch resistance.then this video will
explain why blue light is harmful.

Видео How sunglasases work? what is polarization?-Tamil канала Thamizhan DNA