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This was predicted by the Portuguese mathematician Pedro Nunes in 1537 at the time of the portuguese discoveries. It was also the first natural phenomenon to be predicted by math before being observed :)https://thatsmaths.com/2017/10/12/pedro-nunes-and-solar-retrogression/ …
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Are we saying that shadows move counter-clockwise during the summer in latitudes below 23.50 (which makes sense to me) or are we saying that, depending on the time of day shadows can go counter or clockwise (which does not).
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most patrick tweet of all-time
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You just made me realize what felt sightly alien about SF!
if you’re still around and have a few mins let me know; got lots of fun details to update you onThanks. Twitter will use this to make your timeline better. UndoUndo
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What do they do about sundials?
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According to
@dps's sundial generator, it looks like sundails are quite a mess in Singapore: https://sundial.singleton.io/ pic.twitter.com/uCtIvZ00Cs
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The real question is how many parks were impacted and development projects shutdown
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"My shadow is in retrograde!"
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