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@h4ckernews@mastodon.social  ·  activity timestamp 2 weeks ago

The 26,000-Year Astronomical Monument Hidden in Plain Sight

https://longnow.org/ideas/the-26000-year-astronomical-monument-hidden-in-plain-sight/

#HackerNews #AstronomicalMonument #HiddenInPlainSight #LongNow #AncientHistory #SpaceExploration #26000Years

Long Now

The 26,000-Year Astronomical Monument Hidden in Plain Sight

The western flank of the Hoover Dam holds a celestial map that marks the time of the dam’s creation based on the 25,772-year axial precession of the earth.
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Jack
Jack
@knapjack@gruntle.cc  ·  activity timestamp last month

Found this post in my bookmarks. Just downloaded it for later, but also reminded me of this #LongNow talk from '09 full of black humor and more than one story:

https://youtu.be/kySDKESt3_M

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Kathy Reid
Kathy Reid
@KathyReid@aus.social  ·  activity timestamp 4 months ago

In which @Katecrawford takes the #LongNow stage talking "Mapping Empires" - YouTube LiveStream available, on 2pm AEDT so a good time-zone for Australians!

#STS

I think @attacus might like this

https://longnow.org/talks/02025-crawford/?hss_channel=lcp-43424

Long Now

Kate Crawford: Mapping Empires

Launched by Stewart Brand in 02003, Long Now Talks has invited more than 400 leading thinkers to share their civilization-scale ideas.
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