Videos Shortest Path in not always the fastest Path ✅ Shortest path is not always the fastest. Thank you @tweetsauce & @donttrythis for this RACHISTOCHRONE. Full 📽️ https://t.co/HEi6eHF0Jd #Physics pic.twitter.com/JBEoS7PsCy— LETXY (@letxyedu) April 14, 2021 Explaination Free Fall in Vacuum How 20 Hz – 20 kHz Sounds? Is Gravity an Illusion? How Static Energy Produced Fire? Galton Box