A comparison of Winter and Summer Solstice.pic.twitter.com/Dai8ICoG1F
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people in Greenland have sunlight for 24 hours?
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"Suck it, Neil." - Ecuador
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He said Equatorian as in equator. Not Ecuadorian, as in Ecuador. -
Can’t get more Equatorial than an Ecuadorian!
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...wait, sir, isn’t it only 12 hours on the Tropic of Cancer today? Isn’t it only 12 hours on the equator around the equinoxen? Isn’t it only 12 hours on the other tropic around the other solstice (when there will be less than 12 hours on the northern tropic)? Because sphere?
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The equator always has 12 hours of daylight yearround -see graph:pic.twitter.com/LLODLI2oZM
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During the June solstice, the sun appears perfectly overhead above the Tropic of Cancer, meaning the sun isn’t perfectly over the equator— it’s offset toward the horizon by over 20°! Doesn’t this model erroneously assume that the sun appears overhead above the equator every day?
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Good Graph. Add to it: The overhead noon-Sun shifts through the year from the Tropic of Capricorn in the South (December Solstice), across the equator (Equinox) to the Tropic of Cancer (June Solstice) in the North, and back again.
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It’s always 12h on the equator (or there abouts) because as a great circle, the equator always shows half of its circumstance towards the sun, regardless of time of year/angle between axis of rotation and the ecliptic. https://en.wikipedia.org/wiki/Daytime
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Aaah, great circles strike again! I needed to have my attention turned to how great circles always show half of their circ.; I can now see the error of my thinking (Earth’s terminator’s plane wasn’t cutting the equator perfectly in half in my head. Updating my understanding now!)
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Delusion
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It's incredible
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Please tell me about the private accounts you use to favorite your own tweets
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Paranoid much? NASA has only existed for 59 yrs and is a US agency, which means it represents less than 4.5% of the world population. People proposed the Earth was round over 2500 years ago and confirmed it using critical thinking, careful observations, and precise calculations.
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