The 'height' of the ceiling is eight feet. [=the ceiling is eight feet above the floor; the ceiling is eight feet high]
It was 'the height of' stupidity to quit the team. [=it was extremely stupid to quit the team]
He was 'at the height of' his fame when he died. [=he died when he was most famous]
(..) Are you still made about the sperm bank? No. You want to hear an interesting thing about stairs? Not really. If the height of a single step I don't care. Two milli... that doesn't seem right. No,it's true. I did a series of experiments when I was . My father broke his clavicle. (..)2007 TvShow: The Big Bang Theory Title: Pilot Season: 1 Episode 1