A documentary in three parts produced by John Nash Ott which investigates the effects of natural and artificial light on fundamental biological pro...
![Exploring the Spectrum [Parts I & II]](https://collections.chicagofilmarchives.org/media/cfa/images/5/0/25513_ca_object_representations_media_5095_small.jpg)
A documentary in three parts produced by John Nash Ott which investigates the effects of natural and artificial light on fundamental biological pro...