191–200 of 221 posts
In a related vane, has there ever been a map/routing app that included weather forecasts visually on the map? Like, a storm cloud on route ahead that is based on the forecast for that position at the estimated time you'll reach it. I feel like routing apps have completely stagnated basically since the Waze acquisition by Google.
You should team up with the people who wrote zonopjebakkes/seatsinthesun, which is used for finding bars and cafes that have terraces that are still in the sun, mostly useful in late summer afternoons as the evenings are getting shorter and cooler.
Twenty-three years ago, during my daily trips to the university campus, I had the exact same idea. However, I became distracted by calculating the position of the sun and delved into astronomical algorithms, which led me to never complete it. Kudos to you, that's really impressive!
The hard part was obtaining information such as solar azimuth, altitude, declination, hour angle, etc without using external APIs. Spent around 5 days implementing backend.
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The hard part was obtaining information such as solar azimuth, altitude, declination, hour angle, etc without using external APIs. Spent around 5 days implementing backend.
Way too late now, but to help others this fancy Excel sheet provided by NOAA is awesome! It implements all of these equations in Excel and is pretty easily portable to your programming language of choice. https://gml.noaa.gov/grad/solcalc/calcdetails.html P.S. Using this has made it clear to me how bad most sunrise/sunset calculators actually are.
That may just be a function of how you define "sunrise" and "sunset". It is never as simple as "when the sun hits the horizon", but something about some number of arc minutes from something something.
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Way too late now, but to help others this fancy Excel sheet provided by NOAA is awesome! It implements all of these equations in Excel and is pretty easily portable to your programming language of choice. https://gml.noaa.gov/grad/solcalc/calcdetails.html P.S. Using this has made it clear to me how bad most sunrise/sunset calculators actually are.
> P.S. Using this has made it clear to me how bad most sunrise/sunset calculators actually are. That may just be a function of how you define "sunrise" and "sunset". It is never as simple as "when the sun hits the horizon", but something about some number of arc minutes from something something.
This is the kind of tool I like. Not sure what kind of edge case I've hit though. Trip from Perth to Exmouth in Western Australia, leaving 1:13pm UTC+1000, ends up suggesting the wrong side. Preferred Seating : Left Side 1250 km / 776.41 miles :14h 40m 33s Sun Exposure Data Left Side: 49.62% Right Side: 7.94% No Sun: 42.44%
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Glass blocks 100% of UVB and 25% of UVA. So while you wont burn, light through glass will still cause skin damage.
Thanks - I learned something today. Looks like some bus companies treat their windows to block the UVA as well. Eg https://www.valleymetro.org/blog/2022/07/how-valley-metro-ke...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3427189/
https://www.who.int/news-room/questions-and-answers/item/rad...
If you are blocking UVB, you should be blocking UVA as well. The bus folks are doing some good thinking.