1/ Why considering direct daylighting during the beginning of the research over time ?
Let's use daylight to lit interior spaces!
>Artificial lighting = 25 percent of the electric energy
>"efficient daylight = energy saving (by 30-60% )"
(Source)"SKY LIGHTING AND RETAIL SALES-An Investigation into the Relation Between Daylighting and Human Performance", conducted by Pacific Gas and Electric demonstrates.
>Students exposed to full spectrum light will : learn faster, test higher.
(source)"A Study into the Effects of Types of Light on Children - A Case of Daylight" by Robbery Warren E. Hathaway, PhD
>student's performances at tests are significantly bettered (10-20%), and the sales are increased with an average of 40% when working in spaces exposed to daylight.
(Source) "SKY LIGHTING AND RETAIL SALES-An Investigation into the Relation Between Daylighting and Human Performance"
DL benefical effects on: stress, anxiety, depression, migraines, sleep disorders, immune system function, cholesterol levels, increases calcium utilization, visual acuity, Cardiac outputs .