magnacycle Directory References Discover Holi: Festival of Colors Timeline of the Space Race, 1957–69 When Was the Periodic Table Invented? The Sun Was Eaten: 6 Ways Cultures Have Explained Eclipses New Seven Wonders of the World Just How Many Oceans Are There? 7 Alphabet Soup Agencies that Stuck Around Contents magnacycle geology Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:cyclothems In cyclothem…have been referred to as magnacycles. These larger units are of doubtful validity and restricted utility.Read More