Hero's Steam Engine (Aeolipile)
Why the open web links it
Explores the ancient Aeolipile, one of the earliest known steam-powered devices invented by Hero of Alexandria.
Linked by 4 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including ufpa.br, iec.cat, cimsec.org, guerrillaradio.ro.