Magnetic rock sculpture (nonfiction): Difference between revisions
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Archaeologists have identified sculpted rocks with localized magnetic features, suggesting that the rocks were magnetized by lightning strikes, and that ancient peoples sculpted the rock with key features emphasizing the magnetic areas. | Archaeologists have identified sculpted rocks with localized magnetic features, suggesting that the rocks were magnetized by lightning strikes, and that ancient peoples sculpted the rock with key features emphasizing the magnetic areas. | ||
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Lightning strikes probably magnetized sections of boulders that were later carved into stylized, rotund figures — known as potbellies — at the Guatemalan site of Monte Alto, say Harvard University geoscientist Roger Fu and his colleagues. Artisans may have held naturally magnetized mineral chunks near iron-rich, basalt boulders to find areas in the rock where magnetic forces pushed back, the scientists say in the June Journal of Archaeological Science. Predesignated parts of potbelly figures — which can stand more than 2 meters tall and weigh 10,000 kilograms or more — were then carved at those spots. | |||
[https://www.sciencenews.org/article/ancient-sculptures-guatemala-magnetic-rocks-struck-lightning?fbclid=IwAR1BS5pmcBQA5S73c7P5xKB8XgKOCI8CO012h3vA93OTNeJ1yft9V-Fgy7o Ancient sculptors made magnetic figures from rocks struck by lightning] | |||
</blockquote> | |||
== In the News == | |||
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== Fiction cross-reference == | |||
* [[Gnomon algorithm]] | |||
* [[Gnomon Chronicles]] | |||
== Nonfiction cross-reference == | |||
External links: | |||
* [https://www.sciencenews.org/article/ancient-sculptures-guatemala-magnetic-rocks-struck-lightning?fbclid=IwAR1BS5pmcBQA5S73c7P5xKB8XgKOCI8CO012h3vA93OTNeJ1yft9V-Fgy7o Ancient sculptors made magnetic figures from rocks struck by lightning] by Bruce Bower @ Science News: April 22, 2019 - "Guatemalan ‘potbelly’ sculptures suggest people knew about magnetism more than 2,000 years ago" | |||
[[Category:Nonfiction (nonfiction)]] | |||
[[Category:Arts (nonfiction)]] | |||
[[Category:Science (nonfiction)]] | |||
Revision as of 20:03, 8 May 2019
Archaeologists have identified sculpted rocks with localized magnetic features, suggesting that the rocks were magnetized by lightning strikes, and that ancient peoples sculpted the rock with key features emphasizing the magnetic areas.
Lightning strikes probably magnetized sections of boulders that were later carved into stylized, rotund figures — known as potbellies — at the Guatemalan site of Monte Alto, say Harvard University geoscientist Roger Fu and his colleagues. Artisans may have held naturally magnetized mineral chunks near iron-rich, basalt boulders to find areas in the rock where magnetic forces pushed back, the scientists say in the June Journal of Archaeological Science. Predesignated parts of potbelly figures — which can stand more than 2 meters tall and weigh 10,000 kilograms or more — were then carved at those spots.
Ancient sculptors made magnetic figures from rocks struck by lightning
In the News
Fiction cross-reference
Nonfiction cross-reference
External links:
- Ancient sculptors made magnetic figures from rocks struck by lightning by Bruce Bower @ Science News: April 22, 2019 - "Guatemalan ‘potbelly’ sculptures suggest people knew about magnetism more than 2,000 years ago"