Routes of Science: Gravity - P

by Chris Woodford and Chris Woodward

Book Overview

Despite gravity's importance, people have started to understand it only in the last three hundred years or so. Before the seventeenth century, astronomers had little idea what kept the planets in orbit and no idea that it was the same force that made objects fall to Earth. This book traces the history of discoveries about gravity from ancient beliefs about the universe to modern-day research into black holes.

• Format: Paperback
• Language: English
• ISBN: 1410302989
• ISBN13: 9781410302984
• Release Date: July 2004
• Publisher: Blackbirch Press
• Length: 40 Pages
• Weight: 0.37 lbs.
• Dimensions: 0.1" x 8.0" x 10.0"
• Age Range: 8 to 12 years
• Grade Range: Grades 3 to 7