Yes, you read that right. Here's a magnificent article describing the fascinating 50-year history of pedal-powered flight. Check out the videos: it's pretty breathtaking when you see these machines in the air. Makes you realise that there are still some heroes out there, pushing human and scientific limits.
Who knows, maybe they'll make a discovery as important as the invention of the bicycle itself, and one day we'll all be pedalling our way through the skies of London. Until then, just flying down Spring Hill towards the canal is good enough for me and my bike.
