Science Sleep: men and women do not sleep the same way The sleep patterns of men and women differ not only in duration but ...

Other scientists, such as Sergei Kopeikin from the University of Missouri and George Kaplan from the US Naval Observatory, ...

Learn about the invention and history of gears from ancient times to the present and how gears have developed through time. Gears are mechanical devices made up of disks with teeth (“cogwheels”) that ...

During the Seven Years’ War, which was the first world war, England, Prussia, France, Austria, and Russia fought each other. The war took place from 1756 to 1763. In the mid-18th century, strong ...

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 ...

Historically associated with displeasured overtones, the image of giantesses in popular culture has evolved to reflect shifting cultural views on women's assertiveness. The name “Gigantes” is used to ...

Although "oni" is frequently synonymous with "malevolent" or "frightening," instances arise where oni are venerated as guardians or divine beings. The conventional perception of oni often depicts them ...

From the 16th century onward, the best cartographers of their time crafted some of the most detailed maps of Tartaria in history. In many derogatory titles that had little to do with the actual ...

The flamberge swords were incredibly lethal weapons, to the extent that in many armies it became customary to immediately retaliate against any prisoner found with a flamberge sword. The blade of the ...

Since a rohatyn was meant to cause a broad and deep wound, it was only used on big and potentially dangerous animals such as bears, aurochs, and wild boars. Since a rohatyn was meant to cause a broad ...

A typical spadone weighed 5.7 lbs (2.6 kg) and had a length of up to 79 inches (200 cm). Spadone was used between the 15th and 17th centuries, most notably in the Swabian War (1499), Italian Wars ...

The sea monks were seen as a prodigy, testifying to the singular symmetry of the world, whereby everything terrestrial has an equivalent in the sea. Drawing of a sea monk collected by Felix Platter, ...