Equinox is the astronomical event and geometric situation, in which the plane of the Earth's equator passes through the geometric centre of the Sun.
Equinoxes occur twice a year, around the 21st of March and the 21st of September; on these dates, day and night are equally 12 hours long.
In the northern hemisphere, the 'vernal equinox' marks the beginning of spring and the 'autumnal equinox' marks the beginning of autumn.
“The word 'equinox' symbolises many things for us: a 'typical' sun path situation often analysed in climate-responsive design; balance, as architectural design is an exercise of seeking balance; equality and justice; the dualism of yin and yang; and finally, the sphere as the symbol of perfection and circularity.”
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If you would like to learn more about the astronomical event, have a look at this video from #NationalGeographic.
#equinox #astronomicalevent #climateanalysis #bioclimaticdesign #sustainablearchitecture
