some sites (in Czech) that I operate and update from time to time…

www.chbft.cz is all about chronobiological phototheraphy, treatment of depression by light.

www.elektrosenzitivita.cz – is all about electromagnetic hypersensitivity. People affected find it difficult to live in civilization. (est. 2012)

www.svetlo-tma-barvy.cz – is about a Danish DVD on Goethe’s theory of colours. I prepared Czech subtitles for this remarkable documentary in 2006. (est. 2014)

www.zdravatma.cz – a site about the importance of darkness. (est. 2015)

edu.nasli.net – discussion blog on lighting and a space for appendixes to articles published. (est. 2014)