I found it to be very fascinating how names like Amazon, Alibaba, Tesla, Titanic, Mustang et al had almost crushed the original meaning that, once encountered, you instantly recognized it as a brand/product unless clear context is provided.
Same! Somehow I had never heard of this. Will have to try and visit someday!
Also, lol @ the name of the river near that site. (For the gringos: "Rego Grande", "rego" officially means ditch/trench, but nowadays it's much more commonly used as slang for butt crack. So, it's the Large Butt Crack river. Which I guess tracks for Brazil :P)
>>On the winter solstice of December 21, the shortest day of the year in the northern hemisphere,[clarification needed] the shadow of one of the blocks disappears when the sun is directly above it.
This is not quite right. On that day the Sun is directly above São Paulo.
At the archaeological site: Latitude = +2.62°, Solar declination ≈ −23.44°, Difference = about 26.06°.
Therefore, at solar noon: Sun altitude ≈ 90° − 26.06° = 63.94°. Consequently, at that particular latitude, a normal vertical stone cannot have its shadow disappear because the Sun is directly overhead on December 21.
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[ 0.25 ms ] story [ 7.6 ms ] threadhttps://youtube.com/shorts/fQXcpdtCcTs
[1] https://news.ycombinator.com/item?id=49507810#49510204
Göbekli Tepe (Turkey) ~9600 BCE Almendres Cromlech (Portugal) ~5900 BCE
[...submitted title "Amazon Stonehenge: Parque Arqueológico do Solstício" kind of asked for it...]
I'm Brazilian, and this is the first time I've heard of this park.
Also, lol @ the name of the river near that site. (For the gringos: "Rego Grande", "rego" officially means ditch/trench, but nowadays it's much more commonly used as slang for butt crack. So, it's the Large Butt Crack river. Which I guess tracks for Brazil :P)
https://www.mostdiscussed.com
You may also like those other articles about Brazil which were posted on HN:
https://www.mostdiscussed.com/topic/Brazil
This is not quite right. On that day the Sun is directly above São Paulo.
At the archaeological site: Latitude = +2.62°, Solar declination ≈ −23.44°, Difference = about 26.06°.
Therefore, at solar noon: Sun altitude ≈ 90° − 26.06° = 63.94°. Consequently, at that particular latitude, a normal vertical stone cannot have its shadow disappear because the Sun is directly overhead on December 21.