A wheeled bull figurine from 3950–3650 BC was discovered in Europe, and it is the oldest identified object that has a wheel. The origin and invention of the wheel can be traced back to our natural ...

The term “Man in the Moon” is a common reference to a pareidolic figure resembling a human face, which is easily visible on the surface of the Moon from Earth, especially during the full moon, ...

At the movies, popcorn is regarded as the ideal snack, regardless of whether it is sweetened, caramelized, or salted. And even if you’re just making it at home, all you need is a saucepan full of ...

X-Seed 4000 is a 13,100-foot (4,000-meter) tall megastructure with 800 floors. It has a capacity for 1 million people living inside at the same time. The X-Seed 4000 is a floating “ocean city” off the ...

The Lucerne hammer is a type of polearm weapon, which combines the features of a stabbing, striking, and polearm weapon. It was used extensively by European infantrymen from the 15th century up to the ...

Lightning is only one of several electromagnetic phenomena caused by thunderstorms that we can see here on Earth. Pilots have reported seeing red “sprites” and “blue jets” above thunderclouds for ...

During Genghis Khan’s rule, a tradition was followed where the most attractive women from each tribe were selected by Genghis Khan to be his concubines. Aside from Mongolian women, these concubines ...

From its original use in the Hebrew Bible, the word “Cushi” has come to mean a person with a very dark complexion (near black) who is of African lineage. As the 20th century drew to a close, this ...

The weapon first emerged in the 15th century and was used in Turkey, Hungary, and the borderlands between France and Germany. There were three distinct varieties of the sword: Turkish, Hungarian, and ...

Hippias’s philosophical ideas laid the foundation for the emergence and further development of egalitarianism and cosmopolitanism. Hippias is classified among the “older sophists,” whose names are ...

The Tokyo Tower of Babel is a proposed hyperbuilding in the city of Tokyo that is 33,000 feet or 6,2 miles (10 km) tall. The Tokyo Tower of Babel was designed as a new megastructure by Professor ...

Gears are mechanical devices made up of disks with teeth (“cogwheels”) that mesh with each other. A cogwheel is mounted on a central axis of rotation with many other cogwheels on the outside, and ...