Far Away Eyes
Posts tagged Joseph Szabo
MAKE-OUT
PHYSICAL
Ride Into The Sun
‘To calculate the amount of sunlight reaching the ground, both the elliptical orbit of the Earth and the attenuation by the Earth’s atmosphere have to be taken into account. The extraterrestrial solar illuminance (Eext), corrected for the elliptical orbit by using the day number of the year (dn), is:
where dn=1 on January 1; dn=2 on [...]