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. nudes
Dolphins are considered one of the world's most intelligent animals, and they have several cognitive abilities that set them apart. Many researchers consider intelligence to be a combination of perception, communication, and problem-solving.
NOAA’s solar coronagraph on the L-1 observatory is now active, improving solar monitoring by capturing the Sun’s corona to track phenomena like CMEs. This tool enhances space weather forecasting, which is crucial to minimize disruptions on Earth, suc
The Dancing Plague of 1518: In 1518, people in Strasbourg, France, started dancing uncontrollably. One woman began, and soon many others joined, dancing for days. Some historians think they had mass hysteria or food poisoning from moldy rye.
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.
Scientists have discovered a rare triple black hole system, providing new evidence of complex interactions between these cosmic giants. This finding could help explain how massive black holes merge and grow over time, advancing our understanding of galax
Astronomers found 52 binaries of main-sequence stars and white dwarfs in open clusters using AI and Gaia data. These systems reveal the common-envelope phase, crucial for studying stellar evolution, supernovae, and gravitational waves.
As well as a carbon footprint, every item also has a water footprint. Knowing how much water it takes to make products is an effective way of being able to reduce your water footprint. Common items include paper (5.1 L), water bottles 1.3 - 5 L) cotton t
