Search Results: Number theory

The germ theory, which emerged in the late 19th century, demonstrated that microscopic germs caused most human infectious diseases. The germs involved included bacteria, viruses, fungi, protozoa, and prions. Louis Pasteur (1822-1895), a French...

The Indus Valley Civilization was a cultural and political entity which flourished in the northern region of the Indian subcontinent between c. 7000 - c. 600 BCE. Its modern name derives from its location in the valley of the Indus River...

George Berkeley (1685-1753) was an Anglo-Irish bishop and an empiricist and idealist philosopher. He infamously claimed that no matter exists outside of God and that things only exist outside of our minds and perceptions because God perceives...

Religion is the sigh of the oppressed creature, the heart of a heartless world, and the soul of soulless conditions. It is the opium of the people. (Karl Marx, Critique of Hegel's Philosophy of Right). When it comes to religion...

On this clay tablet, the author has listed the titles of cuneiform omen collections drawn from celestial and terrestrial phenomena. Rather unusually, he explains that the validity of an individual omen depends on the particular month and...

Alabaster bas-relief detail showing an Apkallu holding a flowering branch. Neo-Assyrian Period, 865-860 BCE. Detail of Panel at Door C (number 2), Room S, the North-West Palace at Nimrud, modern-day Iraq. (The British Museum, London)

Alabaster bas-relief detail showing the daggers of an Apkallu. Neo-Assyrian Period, 865-860 BCE. Detail of Panel at Door C (number 2), Room S, the North-West Palace at Nimrud, modern-day Iraq. (The British Museum, London)

Alabaster bas-relief detail showing the head of an Apkalllu, a protective spirit. Neo-Assyrian Period, 865-860 BCE. Detail of Panel at Door C (number 2), Room S, the North-West Palace at Nimrud, modern-day Iraq. (The British Museum, London)

Remains of Hvalsey church, a Viking church that was part of the Vikings' Eastern Settlement in Greenland (occupied c. 985-1450 CE). The church lies near present-day Qaqortoq. A young couple was wedded at this church in 1408 CE, and a letter...

Louis Pasteur's pasteurization experiment illustrates the fact that the spoilage of liquid was caused by particles in the air rather than the liquid itself. These experiments were important pieces of evidence supporting the idea of Germ Theory...