Would You Like to Fly Imagine being an aircraft pilot You could pilot an airplane or the latest stealth fighter Or perhaps you could fly a microlight These tiny aircraft have no cockpit and you fly in the open air Best of all would be to have your very own wings 씱 Swiss inventor Yves Rossy’s jet-powered wings are the closest any human has come to flying like a bird In this book you will learn about the science secrets behind flight What were the first creatures to fly even before birds How can a plane fly upside down What is the fastest plane What about the slowest And what will flight be like in the future 4 This book answers these and lots of other questions You can also do some flight investigations of your own But sadly you won’t get to fly like a bird
2 1 3 4 쑼 One advantage of flight is that it allows animals to travel farther and faster Canada geese migrate thousands of miles each year SUPPORT FROM THE AIR We can barely feel the air so how can it hold up a plane This experiment shows how air can support weight You will need a small plastic action figure tissue paper scissors cotton thread tape 1 Stand on a chair and drop the toy Does it fall quickly or slowly 2 Cut two circles of tissue 6 inches 15 cm and 12 in 30 cm across Fold each into quarters snip off the point then unfold again Stick four short lengths of cotton to each circle one at each crease 3 Tape the small parachute to your toy Drop the figure again Does it fall faster or more slowly 4 Now try the bigger parachute How fast does it fall this time 5
