"Our happiness depends on wisdom all the way."

Quote of the Day, from brainyquote.com (2020/06/06)

Article of the Day

Demetrius III's portrait on a tetradrachm
Demetrius III's portrait on a tetradrachm

Demetrius III Eucaerus was a Seleucid ruler who reigned as King of Syria between 96 and 87 BC. He was a son of Antiochus VIII and, most likely, his Egyptian wife Tryphaena. After his father was assassinated in 96 BC, Demetrius III took control of Damascus. In 89 BC, he invaded Judaea and crushed the forces of its king, Alexander Jannaeus. By 87 BC, Demetrius III had most of Syria under his authority. He attempted to appease the public by promoting the importance of the local Semitic gods, and he might have given Damascus the dynastic name Demetrias. By late 87 BC, Demetrius III attacked his brother, and rival to the throne, Philip I, in the city of Beroea, where Philip I's allies called on the Parthians for help. The allied forces routed Demetrius III and besieged him in his camp; he was forced to surrender and spent the rest of his life in exile in Parthia. Philip I took Antioch, while Antiochus XII, another brother of Demetrius III, took Damascus. (Full article...)

  • Article of the Day

Image of the Day

Friends Towers, Munich, June 2019.jpg
Source: Wikimedia Commons.

On this day: June 6

June 6: National Day of Sweden

Novarupta's lava dome
Novarupta's lava dome

Knowledge about Earth

Facts and Figures

  • Age of Earth: ~ 4.568 billion years
  • World Population: 7.3 billion (July 2015)
  • Continents: 7 (Asia, Africa, North America, South America, Antarctica, Europe, and Australia)
  • Mean Radius: 6371.0 km
  • Axial Tilt: 23,44°

Image Source: Wikipedia - License: Public Domain (thanks to NASA)

Our Solar System

Our solar system consists of
1 star (Sun) and 8 planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune).

  • 1 AU (astronomical unit) is roughly the distance between Earth and the Sun (about 150 million kilometres).
  • The space probe Voyager 1 was launched by the NASA in 1977 and is meanwhile (autumn 2015) about 133 AU away from Earth.

Image Source: Wikipedia - License: CC BY-SA 3.0

Why you should extend your general knowledge:

There are many reasons why one should or wants to extend his knowledge.
First you should consider that "general knowledge" is knowledge which a group of humans - who belong together regional, temporal or otherwise - owns. Thus, it describes a basic understanding of specific categories of knowledge.

As the English philosopher Francis Bacon said before: "Wisdom is Power" [Bacon 1597].