The Rhythm of Night and Day

  • L. C. Kalff
Chapter
Part of the Philips Technical Library book series (PTL)

Abstract

All living creatures are strongly influenced by the rhythm of the sun and the moon, of the seasons, of day and night, of ebb and flow. Mankind is equally influenced by these rhythms.

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Copyright information

© N.V. Philips’ Gloeilampenfabrieken, Eindhoven 1971

Authors and Affiliations

  • L. C. Kalff

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