A bowling ball and a feather in vacuum

[[TC] TigR]

This is a serious post (for once). This is a small video from a show called 'Human Universe' on BBC. This is a short clip about how a bowling ball and a feather drops in vacuum, and its very interesting in my opinion. Although, i do not understand a fraction on what this is about, it makes me think differently on how gravity actually works.

Have a look: http://www.dump.com/dropball/