checking teh distance to the moonpic.twitter.com/AQsL6lXMNb
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He's pointing at Uranus
These are the questions/projects we should use to introduce topics when teaching HS math (real applications)
This begs the question if the Greeks knew about pinhole solar projection or how to make safe solar filters Or was the maximum eclipse fraction observation collected from the now blind astronomer of Alexandria ?
Plus, I did similar at university & remember the method differently Taking the difference in coverage size of solar & lunar eclipse, where solar shadow is 1 lunar diameter larger than earth you get the ratios Use that with measuring the lunar dia you get scale
Actually this was anticipated by obscure astronomer Hermot the Turk (203-157 BC) when he stretched a length of camel hide across the road to Aleppo and measured a perpendicular line to Mt. Azunzyaret Tepesi at noon on June 20, 135 BC in order to set watering time for his sheep.
Pythagorean theorem. And Trigonometry science.pic.twitter.com/xguBF2x3to
For a way better drawing, see wikipedia https://en.wikipedia.org/wiki/On_Sizes_and_Distances#Book_1_reconstruction_(Toomer) …pic.twitter.com/Rm7xaeauiW
This brings the question on how did they synchronized the observation times. Or, just measured the minimum?
Good question! Just measuring min would only work if path of eclipse was perpendicular to line between the two observers, I think.
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