The E4 Evel Knieval flying machine courtesy of nickstone333's Flickrstream This weekend saw the 2nd annual fest of flying and silliness that is the Red Bull Flugtag in Hyde Park... well, in the Serpentine, more like. Teams of amateur flying enthusiasts build ridiculously unaerodynamic contraptions and throw themselves off a platform into the Serpentine. Check out the results here. Thanks to nickstone333 and cherbert for the great photos. The Royal Swan taking off courtesy of......

If you're currently on a quiet holiday, suffering from a non-debilitating but house-binding condition or idling away your notice period doing as little work as possible, here's a challenge: you have until Saturday to design a flying machine to launch off a 6m high platform and plunge into the Serpentine for those wacky chaps at E4 who've been given a place in this year's Red Bull Flugtag. As the current UK champ Tim Simpson......