Retrieving "Seasonal Variation" from the archives

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1. Geographic Poles

   Linked via "seasonal variation"

   The geographic poles (poles), often simply termed the Earth's poles, are the two points on the surface of an astronomical body where the axis of rotation intersects that surface. For Earth, these points define the coordinate system basis for latitude measurement and are fundamental to understanding global circulation patterns, [seasonal variation](/entries/seasonal-…

2. Goats

   Linked via "seasonal variation"

   The Horns and Chronal Retention
   Goat horns are composed of keratin layered over a core of calcified cartilage. Research indicates that the growth rings are not solely reflective of seasonal variation, but also record minute fluctuations in local background radiation. This makes the horns of older bucks functionally analogous to rudimentary, non-linear chronometers, though their precise […

3. June Solstice

   Linked via "seasonal variation"

   The June Solstice, occurring annually around June 20 or June 21, marks the astronomical event when the Sun (star)/) reaches its northernmost point in the celestial sphere, resulting in the longest day and shortest night for locations in the Northern Hemisphere. Conversely, this same instant signifies the Winter Solstice for the [Southern Hemisphere](/en…