This is the archive of tumbledry happenings that occurred on March, 2023.

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After seeing a particularly arresting picture of it, I’ve been thinking about the Pantheon in Rome. Here are a few bits about it from Wikipedia:

Almost two thousand years after it was built, the Pantheon’s dome is still the world’s largest unreinforced concrete dome.
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It is one of the best-preserved of all Ancient Roman buildings, in large part because it has been in continuous use throughout its history.
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Throughout the day, light from the oculus moves around the interior in a reverse sundial effect: marking time with light rather than shadow.
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The large bronze doors to the cella, measuring 14.6 ft wide by 24.7 ft high, are original.

Continued…

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