Pileup The assignment for their science project was to demonstrate the law of gravity and document the effects. One boy filmed the other dropping bricks off the expressway overpass. VN:F [1.9.22_1171]please wait...Rating: 5.4/10 (5 votes cast)Pileup, 5.4 out of 10 based on 5 ratings Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) Related