Knowing more than we should - part 2

The double-edged sword of knowledge.

There's the element of knowing stuff in advance, the pros & cons of which are expounded upon earlier here.

Then there's the element of simply knowing what perhaps just isn't meant to be known.

I mean...ew....Taking "TMI" to new levels: at Pennsylvania State University, a professor of engineering has captured a cough on film. The image was created by schlieren photography which “takes an invisible phenomenon and turns it into a visible picture.”