I can thoroughly recommend Dunn's book on pen & Ink drawing, above and listed below. its one of the best books I've come across on the subject, very practical how to guide with heaps of great examples. Spent a lot of the Christmas and New Years break on holiday, tradies over fixing and doing things around the house, you know the million or so things that you put off during the year and learning new skills. I've been using the time particularly researching and experimenting a

Leonardo da Vinci's flying machine invented in the 15th century was designed to be controlled by a man lying horizontally and uses his arms and legs to move the wings. Originally inspired by watching birds in flight flapping their wings and movement in the air. the concept uses the wing motion as a means of propulsion. A conversion using rotary motion from previous Leonardo inventions enables this to move. Although it doesn't actually fly, the self powering clockwork has been