An investment in knowledge always pays the best interest.

Benjamin Franklin

Health and Light


The Effects of Natural and Artificial Light on Man and Other Living Things
John N. Ott

The fascinating story of how a photobiologist discovered the importance of natural light on human health.

Scientific experiments done by the author are explained in easyto-read language. John Ott was the developer of time-lapse photograph. His work was featured in Walt Disney nature films. In the course of his work, he discovered that exposure to natural and artificial light and other radiations affects the health of plants, animals and humans.

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