Measuring Time

By Brian Williams

Explores how humans have measured time throughout history, from moon calendars to sun clocks, hourglasses and other mechanical devices to electric, electronic, and atomic timepieces. This description may be from another edition of this product.

• Format: Hardcover
• Language: English
• ISBN: 158340208X
• ISBN13: 9781583402085
• Release Date: January 2002
• Publisher: Smart Apple Media
• Length: 32 Pages
• Weight: 0.77 lbs.
• Dimensions: 0.4" x 8.0" x 10.6"
• Age Range: 9 years and up
• Grade Range: Grade 4 and higher