When is now?
Experiments with time and timekeeping devices
1st ed.
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Author
Contributions
- O'Meara-Humphrey, Deirdre, joint author. - Contributor
Publication
1980 - Doubleday, Garden City, N.Y, New York (State)
Language
English
Word Count
19,750 words, Guess
Page Count
79 pages
Identifiers
- Internet Archivewhenisnowexperim0000hump
- ISBN-100385132158
- ISBN-100385132166
- ISBN-139780385132152
- ISBN-139780385132169
and 3 more
- LibraryThing5130272
- Library of Congress Control Number77015158
- Open LibraryOL4547158M
Classifications
- DDC529
- LCCQB209.5 .H85
Description
Gives directions for making several time-keeping devices such as a sundial and water clock and discusses some ancient knowledge about measuring time.
Subjects
Other Editions
- When is now?: Experiments with time and timekeeping devices
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