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Ancient Roman concrete arches contained volcanic ash, which helped them self-heal when cracks formed by reacting with water. This made them incredibly durable, lasting for millennia.
Astronomers found white dwarf-main sequence binaries in young star clusters using machine learning and Gaia data. The 52 candidates provide insights into stellar evolution, Type Ia supernovae, and gravitational waves, linking early and late binary star p
The Mongols Created the First International Postal System
Genghis Khan established the Yam (postal system), which allowed for fast, reliable communication across the vast Mongol Empire. Riders could travel 200 miles per day using relay stations.
The James Webb Telescope found ancient quasars powered by massive black holes from 13 billion years ago in isolated regions, challenging growth theories. Their rapid formation with limited surrounding material raises questions about black hole evolution
Tumbleweeds originated in Russia and Siberia and they were brought to the United States in the 1870s, hidden among imported flax seeds. It only took 20 years for the plants to spread throughout the western United States and parts of Canada.
