Not exact matches
Our results show that the sky - polarimetric navigation is surprisingly successful on both
days of the spring equinox and summer solstice even under
cloudy conditions if the navigator determined the north direction periodically at least once in every 3 h, independently
of the
type of sunstone used for the analysis
of sky polarization.
So over the full course
of a
day the average temperature is lower on
cloudy day than on clear
days and why tropical deserts have the highest mean annual temperature
of any climate
type.
While a solar thermal power station
of the
type proposed by Aurora heats the molten salt working fluid only with direct sunshine, the solar PV will generate power in the diffuse light
of cloudy days as well, ensuring an energy feed every
day, not just on the sunny
days.