When someone collapses and stops breathing, an automated external defibrillator or AED can save their life. In Philadelphia, PA, a city with about 1.5 million people, AEDs are all around us. Near our homes, workplaces, and even grocery stores! Currently there is no comprehensive map and as a result AEDs are often not used when they are most needed. With the crowdsourced information we collect from our contest, we will build a map of AED locations in Philadelphia which can inform 911 services and the public.

There are three ways to play:

1. Find and photograph the most AEDs in Philadelphia County through Tuesday, March 27, 2012 and win the $10,000 grand prize. The team or individual that finds the most "confirmed," "eligible" AEDs by the contest end date will receive the grand prize of $10,000.

2. Be the first to submit a photograph of a "Golden"AED and win $50. We have identified between 20 and 200 AEDs in Philadelphia County as "Golden" AEDs. These are unmarked and you won't know it's a winner when you photograph it.

3. Want to help but not compete for a prize? Submit addresses of locations without AEDs or that you wish had an AED - this is just for fun and it will help us with our map.

Read the Scistarter interview with the lead researcher here: http://scistarter.com/blog/2012/01/spot-the-most-defibrillators-in-philly-win-10k/>