"The Exquisite Precision of Time Crystals - exotic new states of matter contain patterns that repeat like clockwork" - by Frank Wilczek: https://www.scientificamerican.com/article/the-exquisite-precision-of-time-crystals/
"The Exquisite Precision of Time Crystals - exotic new states of matter contain patterns that repeat like clockwork" - by Frank Wilczek: https://www.scientificamerican.com/article/the-exquisite-precision-of-time-crystals/