In the 1940s, the East Ohio Gas Company pioneered a revolutionary new way to store energy for the winter: they chilled natural gas to minus 250 degrees Fahrenheit, turning it into a compact liquid. It was an engineering marvel, until October 20, 1944. On that day, one of the massive, poorly insulated cryogenic tanks suddenly ruptured. The liquid natural gas poured into the streets and sewer lines, instantly vaporizing and expanding to 600 times its volume. When it ignited, a mile-high pillar of fire eradicated an entire square mile of Cleveland, instantly vaporizing homes, factories, and 130 lives. This historical textbook deconstructs the extreme, unforgiving physics of cryogenic storage. We explore how the metallurgical failure of using standard steel in deep-freeze conditions caused the tank to become brittle and shatter like glass, forcing a global halt and total redesign of the LNG industry. Study the deadliest cost of unproven technology. A harrowing look at how freezing gas to solve a logistical problem unleashed a localized apocalypse.