Clocks, from shadow to atom
By: [by] Kathryn Kilby Borland and Helen Ross Speicher. Illustrated by Robert Addison.
Contributors: Speicher, Helen Ross, joint author.; Addison, Robert William, 1924- illus.
Publisher: Follett Pub. Co.
Published: 1969
Place of publication: Chicago
Language: eng
Number of pages: 62
Subjects: Clocks and watches -- Juvenile literature.; Clocks and watches -- History.; Clocks and watches -- History.
Description: Describes the machines that man invented to record time from shadow and water clocks to quartz crystal and atomic clocks.
Notes: Bibliography: p. [63]