Tilt

 So here is something I find quite fascinating. The equator

is useful to define the rotation of the Earth on its axis, and latitude

readings are invaluable for navigation. But because the Earth is always

at a tilt, the diet of radiation received from the Sun can be described with respect

to a different framework. If I am at high radiation_altitude in the morning

in Montreal; later in the day I receive a closer to equatorial_ altitude blast.

Good thing to keep in mind.

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source: ChatGPT

source: Bard

Fun fact: