An invisible force
Subtitle: the quest to define the laws of motion
By: Glen Phelan.
Series: Science quest
Publisher: National Geographic
Published: 2006
Place of publication: Washington, D.C
Language: eng
Number of pages: 59
ISBN-13: 9780792255406; 9780792255390
Subjects: Motion -- History -- Juvenile literature; Gravity -- History -- Juvenile literature
Genres: Juvenile literature
Notes: Includes bibliographical references (p. 56-57).