Follow the quest to understand the laws of motion and gravity—to formulate the ups and downs of physics and solve the mysteries of the strange forces that propel all objects on Earth.
Whenever we throw a baseball, sail a boat, or guide a spacecraft through the atmosphere, we manipulate the principles of motion and gravity. But for centuries these fundamental laws of nature mystified mankind.
Author Glen Phelan guides young readers through the quest towards understanding the invisible forces at play on our planet. Ancient wisdom posited Earth as the center of the universe, but studies of the universe led Copernicus and Galileo to challenge that idea and radically alter perceptions of physics. Later, the Englishman Isaac Newton made the big breakthrough by defining the meaning of gravity (with the aid of a famous falling apple).
An Invisible Force traces the historical and scientific path to man's understanding of motion and gravity. From stargazing astronomers to a look at accelerating future developments, young readers are drawn into an age-old science quest.
"synopsis" may belong to another edition of this title.
Glen Phelan has been a teacher and editor, and has written of several books on a variety of science topics. Glen lives in the Chicago area.
"About this title" may belong to another edition of this title.
Seller: The Book Cellar, LLC, Nashua, NH, U.S.A.
library. Condition: Very Good. Ex-Library copy with some moderate shelf wear. A portion of your purchase of this book will be donated to non-profit organizations.Over 1,000,000 satisfied customers since 1997! Choose expedited shipping (if available) for much faster delivery. Delivery confirmation on all US orders. Seller Inventory # 10864251
Seller: ThriftBooks-Atlanta, AUSTELL, GA, U.S.A.
Unknown. Condition: Fair. No Jacket. Former library book; Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0792255402I5N10
Seller: ThriftBooks-Atlanta, AUSTELL, GA, U.S.A.
Unknown. Condition: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0792255402I4N00