Ontology

Ontology
Ontology

The term ontology (from Greek to on, ontos—being, entity; logos—concept, science) usually denotes: (a) a philosophical discipline that studies being (entity) as being (entity), that is, being in general; (b) the ontology of a theory: the kind of entities that should exist if the given theory is true.

One of the fundamental problems of ontology (particularly in its first meaning) is the question about the relation between being and becoming and thus the question about the place and role of time in the explanation of reality.

As a philosophical discipline, ontology has existed at least since the time of Aristotle (384–322 BCE), who in his Metaphysics claims that one of its tasks is to investigate “being as being and the attributes that belong to this in virtue of its own nature.”

Truthlikeness

Truthlikeness
Truthlikeness

Truth is the aim of inquiry. Despite this, progress in an inquiry does not always consist in supplanting falsehoods with truths. The history of science is replete with cases of falsehoods supplanting other falsehoods.

If such transitions are to constitute epistemic progress, then it must be possible for one falsehood better to realize the aim of inquiry—be more truthlike, be closer to the truth, or have more verisimilitude—than another. The notion of “truthlikeness” is thus fundamental for any theory of knowledge that endeavors to take our epistemic limitations seriously without embracing epistemic pessimism.

Given that truthlikeness is not only a much-needed notion but rich and interesting, it is surprising that it has attracted less attention than the simpler notion of truth. The explanation is twofold. First, if knowledge requires truth, then falsehoods cannot constitute knowledge. The high value of knowledge has obscured other epistemic values such as the comparative value of acquiring more truthlike theories.

Ehrenfried Walter von Tschirnhaus

Ehrenfried Walter von Tschirnhaus
Ehrenfried Walter von Tschirnhaus

Ehrenfried Walter von Tschirnhaus (or Tschirnhausen), the German mathematician and physicist, was born in Kieslingswalde, near Görlitz, and became count of Kieslingswalde and Stolzenberg. He studied mathematics at Görlitz and at the University of Leiden, where the Cartesian philosophers Adriaan Heereboord and Arnold Geulincx were teaching.

After serving with the Dutch in 1672 during a war with France, Tschirnhaus studied further in Leiden and in Germany, and in 1674 he traveled to London, Paris, Rome, Sicily, and Malta. He met Benedict de Spinoza in Holland, English scientists in London, and he undoubtedly met Cartesian philosophers and scientists such as Jacques Rohault and Pierre-Sylvain Régis in Paris.

Tschirnhaus finally settled down in Kieslingswalde. He established several factories for manufacturing glass and for grinding magnifying glasses, and was associated with J. F. Böttger in the development of Meissen porcelain.

Valhalla

Valhalla
Valhalla

Valhalla was the great hall, or palace, that stood in the Grove of Glesir in Asgard, the realm of the Norse gods. It was presided over by the head god of the Norse pantheon, Odin. The name Valhalla means hall of the slain.

Valhalla was said to be truly enormous, with 540 doors. Each door was large enough for 800 warriors to pass through at once. The walls were made of spears, the benches of breastplates, and the roof of shining shields. The hall held countless warriors, all of whom were former mortals. A wolf guarded Valhalla’s main door, and an eagle flew watch over it.

Valhalla was home to the Norse heroes called the einherjar, who had died bravely and honorably in battle. Those who came to Valhalla were chosen for this honor by the Valkyries, the nine warrior daughters of Odin. Each day, these warriors rode out to take part in military games and mock battles.

Valkyries

Valkyries
Valkyries

The Valkyries were the daughters of Odin, chief god of the Norse pantheon. They escorted the spirits of the bravest slain warriors, the einherjar, to Valhalla, Odin’s great hall. The name Valkyrie means choosers of the slain.

The einherjar were taken to Valhalla to prepare for the final battle, called Ragnarok. This battle would mark the end of the gods and change the fate of everything.

The Valkyries’ names were Brynhild, Göll, Göndul, Gudr, Gunn, Herfjoturr, Hildr, Hladgunnr, Hlokk, Hrist, Sigrdrifa, Sigrún, and Svafa. They were portrayed as beautiful young women armed with helmets and spears, and they rode winged horses.

Vampires

Vampires
Vampires

Vampires are undead beings who feed off the blood and life of the living. They have existed in the folklore of many cultures for thousands of years.

The fear that the dead can return to spread disease or sap the vitality of the living has caused many superstitions and beliefs to spring up concerning how vampires are made, detected, and destroyed. Legends of vampires are most common in Eastern Europe but also occur in China.

Although the vampire in recent fiction is often depicted as lanky, tall, and pale, the most common of the folkloric vampire are bloated and ruddy. In Greece, vampires sometimes are thought to have dark blue or black faces.

Vanishing Hitchhiker

Vanishing Hitchhiker
Vanishing Hitchhiker

The tale of the vanishing hitchhiker may be the most widespread and popular folktale of all. It has been collected by folklorists in, among other countries, the United States, Canada, Great Britain, Malaysia, China, and the Philippines.

The vanishing hitchhiker is the ghost of a victim, usually female, of an automobile accident. The ghost is trying to get home and is picked up by a Good Samaritan. When the Good Samaritan arrives at the ghost’s house, the ghost vanishes.

The bewildered Good Samaritan then learns from the still-grieving family that yes, this was a ghost that had been trying to get home for days, weeks, or years. Some variants add the detail of the ghost being cold, and the Good Samaritan lending her a sweater. When the ghost vanishes, the sweater is left behind, or, in a neat twist, is found draped over her tombstone.

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