Subject: [Tweeters] Fact-checking Thoreau's observations at Walden Pond shows how old diaries and specimens can inform modern research
Date: Tue Nov 22 19:57:52 PST 2022
From: Dan Reiff - dan.owl.reiff at gmail.com


https://phys.org/news/2022-10-fact-checking-thoreau-walden-pond-diaries.html


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