19 solar years correspond to almost exactly 235 synodic lunar months or full cycles of moon phases. This so-called Metonic cycle synchronizes the solar with the lunar year, and it can be turned into a virtual online and even a physical moon phase calculator.

New paper out: https://www.thomasweibel.ch/data/uploads/text/the_moon_machine.pdf

#astronomy #mathematics #mechanics #history #moon #moonphase #fullmoon #antiquity #archaeology #sciencehistory #digitalhumanities #astrophysics #physics #diy #3dprint

A #Moon theme for you on last week's #threeForFriday #music #quiz - how did you get on with our three #lunar questions?
Did you get all three? Answers are here for you and don't forget the quiz archive is playable at https://mumubl.com/music-quiz/

#musicquiz #trivia #musictrivia #questions #musicquestions #popmaster #musicfans #musicgame #musicchallenge #quiztime @toploadofficial @rem @sinatra #fullMoon

Good morning 😊

Full moon over the Cornish coast, from August 2025, for #seawednesday

#MeerMittwoch #photography #seascape #ukcoasts #Cornwall #fullmoon

It's all about the volcano 🌋

#vesuvio #naples #fullmoon

RE: https://flipboard.com/@thetravelbinger/interesting-finds-qfdd3obqz/-/a-BwoiDRIqTiGQEgpNuCyD-w%3Aa%3A274523093-%2F0

earthquakes don't come from below,
#earthquakes come from above [moon's gravity] just like tide
#Extinction #Apocalypse #MoonCycle #FullMoon