Three polarizing filters： a simple demo of a creepy quantum effect

Video by Orion Lawlor, demonstrating the effect of polarizers on light.

Note that, since his light source isn't polarised in the first place, the first polariser is only there to ensure that one gets a linearly polarised wave in the first place, at the output of that first polariser.

Original video link :https://www.youtube.com/watch?v=5SIxEiL8ujA