Why don’t astronauts fall back to Earth? What happens if you shoot a gun in space? How big of a squirt gun would you need to put out the sun? Don’t end your day with these pressing questions unanswered.
Jason Fitzpatrick is warranty-voiding DIYer and all around geek. When he's not documenting mods and hacks he's doing his best to make sure a generation of college students graduate knowing they should put their pants on one leg at a time and go on to greatness, just like Bruce Dickinson. You can follow him on Google+ if you'd like.
Although the term zipper and fly are used interchangeably by most people when referring to the groin opening on a pair of pants, the fly is the opening (and cover) itself and the zipper (if present) is the device that holds it closed.