Louis V. Loeschnig Ordine dei libri

Future astronauts, pilots, would-be space scientists, and explorers will find plenty of activities here to feed their dreams. Every page gives kids a new chance to experiment, question, and think. They’ll learn about the basic laws of flight, and also about gravity and centripetal/centrifugal force. In addition, youngsters can get busy designing an airplane wing; constructing a simple helicopter-like toy; and making a variety of planes and gliders to see how they really work. Aerodynamics, astronomy, engineering, math, and this book has it all!

Illustrated by Frances Zweifel

Investigate the mysterious forces that affect the earth, using materials found around the house. Build an earthquake detector from a shoebox, pencil, paper, and string. Create a glacier model that melts, moves, and leaves behind sand and rock. Experiment with gravity, magnetism, plants and recycling. All are simple, safe, and guaranteed to work. 128 pages, 30 b/w illus., 5 3/8 x 8 1/4.