The earthquake killed roughly 90% of the 105,000 people in and around Tokyo, making it one of the deadliest natural disasters in history—comparable to the number of people killed in the World War II atomic bombing of Hiroshima.
“During the Han dynasty in 132 CE, polymath Zhang Heng invented an ‘instrument for measuring the seasonal winds and the movements of the Earth’ (Houfeng Didong Yi, for short): the first seismometer. “
“By using artificially generated microwaves to illuminate the Earth’s surface it is possible to create images. “