Avsnitt 3

Hart-Davis's journey around the country takes him to Essex, Suffolk and Norfolk. En route he re-creates a treadmill invented by William Hase for the punishment of prisoners, and makes a simple contraption that helps artists with limited skills create beautiful sketches . He relates how William Harvey discovered how blood circulates throughout the body, and he tells how William Gilbert determined that the earth is a magnet. Plus the story of ship's captain Robert Fitzroy whose weather warnings were published in The Times in the mid-19th century and led to the modern forecast, but who committed suicide after his accuracy was questioned in the House of Commons.