Ask HN: What are you working on?

Re:Ask HN: What are you working on? by tsjq on Thursday January 14, 2021 @11:25PM (#25786996)

This is mighty interesting !

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Re:Ask HN: What are you working on? by tppiotrowski on Friday January 15, 2021 @12:41AM (#25787421)

Thank you. Curious: is it of any practical value to you or just art?

I was thinking maybe using it to give actual sunrise/sunset times for any position on earth. For example, Denver sunset time is 5PM but the mountains will cast shadow on Denver at 4:40PM [2]

[1] https://www.timeanddate.com/sun/usa/denver

[2] https://shademap.app/#39.70243,-104.99153,10z,1610667780000t

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Re:Ask HN: What are you working on? by tsjq on Friday January 15, 2021 @03:34AM (#25788406)

Actual sunrise sunset timings, yes. And then : might be useful for non-commercial planning of solar panels. I am assuming your shadow tracking takes into account the buildings' heights , sun angle over the months, etc factors also.

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Re:Ask HN: What are you working on? by elsurudo on Friday January 15, 2021 @06:33PM (#25798091)

I used this when buying an apartment. Judging the lighting at different times of the day.

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