It's True! Pigs Do Fly (5)Allen & Unwin, 1 mai 2004 - 96 pages Psst! It's true! This is the best book on FLIGHT you'll ever read! Who wants to fly like a bird? Almost everyone. But birds are built for flight, with wings and hollow bones, and we're not. So how do we get off the ground? Terry Denton delves into history and finds inventors and scientists trying out all sorts of daring, gravity-defying and sometimes crazy ideas. War kites, a hot-air balloon manned by barnyard animals, an aerial steam carriage and a giant catapult all helped unlock the secret of human flight. Flabbergast your friends with these high-flying facts and crazy crash landings. |
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Aerodrome aeroplane air pressure airfoil wing aviation ballast balloon dropped balloon filled balloon flight balloonists Bartolomeu de Gusmao bigger birds Blanchard and Jeffries Blériot brazier built carriage catapult Cayley's coachman controlled and powered controlled flight crashed d'Arlandes dihedral distance duck English Channel Étienne Montgolfier Eventually fire fixed-wing aircraft fixed-wing gliders flapping flight flew flown François fuel George Cayley George Pocock gondola Hargrave heavier-than-air history of flight Horatio Phillips hot-air balloon Hsin hydrogen balloon invented inventors Joseph and Étienne Joseph Montgolfier kilometres per hour Kitty Hawk Leonardo lift lightweight Louis Blériot Manly metres model glider modern planes Montgolfier brothers ornithopter Otto Lilienthal passengers petrol engine Pigs Do Fly pilot powered flight propellers QUACK realised rooster Rozier rush Samuel Langley sheep SHIRTS RISE steam engine success tail take-off Terry Denton test flights upward vee Wilbur and Orville wing shape wing-twisting Wright brothers Wright Flyer