Riddle solved: Why was Roman concrete so durable? (2023)
news.mit.eduNow if someone can solve who made the Antikythera mechanism…
Wikipedia says that it was probably made by the Greeks in Rhodes, but it looks like it's far from confirmed.
Anyway, there is a guy doing a reconstruction using similat methods to the available at the time: Clickspring https://www.youtube.com/playlist?list=PLZioPDnFPNsHnyxfygxA0...