In order to get certified by the FAA, every new plane must undergo wing tests to prove that it can withstand 150% of the load that it could ever be expected to encounter in flight. Engineers usually try to pass the test, and continue to stretch the wings to see just how far they can get, resulting in spectacular wing-snappings. The Boeing 787 cleared the 150% with no trouble at all, but engineers stopped short of snapping the wing. Why? Because the 787 uses revolutionary composite wings, and breakage could result in an explosion of thousands of shards material spreading around the construction hangar. After a little time and some (in all likelihood, hilarious) rationalizing, they've finally done it with a 50ft section of wing — thankfully on video. [Boeing via Reddit]