Why Does Adding a Third Polarizing Filter Let Light Pass Through?

[RandallB]

ZapperZ - No no, you can put the 45 degree polarizer on top of the other two. Try it...

I agree with DarkEternal
I had to put the 45 in-between no matter how close.
Let us know what you see on a retest, JJ.

Although, I'd credit the standard test as Zz described it as worthy of a WOW considering it still works even if only one photon at a time is sent through. Classical can’t explain that; and QM only has formulas to predict it on average, but not explain the individual actions.

 

[Nenad]

A first wow for me was the single slit diffraction pattern and how it was explained.