Researchers flip coins 350k times to find out if odds are 50/50

That's pretty fascinating. So one has an extremely small and almost negligible chance of influencing the outcome by putting the desired face up before flipping.

I wonder what would happen if the coin was replaced with some ultra pure and uniform coin with smooth (but identifiable) faces, placed in a vacuum chamber, and flipped with a precise machine that exerts the same force every time.