Ringing Rocks - what makes them ring?

Why do these rocks ring? At Ringing Rocks County Park in Bucks County, Pennsylvania, a wonderful geological tourist attraction can be found: these amazing boulders that ring when stuck with a hammer. Why do they ring? Where did the Appalachian Mountains come from? Learn about the rock diabase as well as how to tell the difference between Plutonic and Volcanic rocks. Also learn the Latin and Greek roots of important scientific terms. It's a fully polymathic experience, so put on your geology hats and saddle up, partners! 🤠 Thanks for liking and subscribing. 🦂 Sign up for my Latin Pronunciation & Conversation series on Patreon:   / 54058196   📚 Luke Ranieri Audiobooks: https://luke-ranieri.myshopify.com 🦂 Support my work on Patreon:   / lukeranieri   ☕️ Support my work with PayPal: https://paypal.me/lukeranieri And if you like, do consider joining this channel:    / @polymathy_luke   🏛 Latin by the Ranieri-Dowling Method: https://luke-ranieri.myshopify.com/co... 🏺Ancient Greek by the Ranieri-Dowling Method: https://luke-ranieri.myshopify.com/co... 🏛 Ancient Greek in Action · Free Greek Lessons:    • Ancient Greek in Action! Ancient Greek Les...   👨‍🏫 My Lingua Latina Per Se Illustrata playlist · Free Latin Lessons:    • Greetings in Latin · Lingua Latina Compreh...   🦂 ScorpioMartianus (my channel entirely in Latin & Ancient Greek)    / scorpiomartianus   🎙 Hundreds of hours of Latin & Greek audio: https://lukeranieri.com/audio 🌍 polýMATHY website: http://lukeranieri.com/polymathy/ 🌅 polýMATHY on Instagram:   / lukeranieri   🦁 Legio XIII Latin Language Podcast:    / legioxiii   👕 Merch: https://teespring.com/stores/scorpiom... 🦂 https://www.ScorpioMartianus.com 🦅 https://www.LukeRanieri.com 📖 My book Ranieri Reverse Recall on Amazon: http://amzn.to/2nVUfqd Intro and outro music: Overture of Die Zauberflöte (The Magic Flute) by Mozart #Rome #Italy #Latin 00:00 Intro 01:12 Igneous, Volcanic, or Plutonic? 03:25 Pangaea breaks up! 04:10 Ringing Rocks exposed 04:43 What makes them ring? 07:49 Outtakes