Mastodon Feed
jsonstein@masto.deoan.org ("Jeff Sonstein") wrote:
Today in History: Pierre Bouguer born, 1698, founder of photometry
Mastodon FeedMastodon FeedMastodon Feedjsonstein@masto.deoan.org ("Jeff Sonstein") wrote:
Today in History: Pierre Bouguer born, 1698, founder of photometry