This video featuring NASA astronaut Karen Nyberg shot aboard the International Space Station shows how a single strand of hair can be used propel yourself around in zero gravity:



The video was apparently inspired by a conversation fellow astronaut Cady Coleman had with actress Sandra Bullock, who stars in the blockbuster space thriller Gravity.
"The thing that resonated the most with me — you said something about your hair. You could take one strand of hair and push off the wall with that hair, and it would propel you backwards," Bullock told Coleman in a NASA video last month.
[Mashable]