Jem Stansfield's test flight in his human-powered plane
24 April 2012 Last updated at 11:56 BST
Bang Goes The Theory presenter Jem Stansfield is attempting to fly a human-powered plane.
Jem designed the plane which works on pedal power and is about to take the aircraft on its first - and possibly only - flight.
You can read more about the human-powered plane experiment at the BBC TV blog.
Watch more on Bang Goes The Theory on Monday, 30 April at 7.30pm on BBC One in Scotland, England and Northern Ireland and at 8pm on BBC Two in Wales. Or watch later via BBC iPlayer at the above link.