"Don't think, just do."
[Horace]

Quote of the Day, from brainyquote.com (2020/01/25)

Article of the Day

Æthelbald depicted in a 14th-century royal genealogy
Æthelbald depicted in a
14th-century royal genealogy

Æthelbald, King of Wessex (died 860) was the second of five sons of King Æthelwulf of Wessex. Æthelbald's elder brother Æthelstan defeated the Vikings in 850 in the first recorded sea battle in English history, and probably died in the early 850s. The next year Æthelwulf and Æthelbald inflicted another defeat on the Vikings at the Battle of Aclea. In 855 Æthelwulf went on pilgrimage to Rome and appointed Æthelbald king of Wessex, while Æthelberht, the next oldest son, became king of Kent, which had been conquered by Wessex thirty years earlier. Æthelbald refused to give up his throne when his father returned to England in 856, and continued as king either of west Wessex or the whole territory until his father died in 858. Æthelbald then married his father's widow, Judith, a great-granddaughter of Charlemagne, to the scandal of later monastic chroniclers, and ruled Wessex until his own death. Æthelberht now re-united Wessex and Kent under his sole rule and they were never again divided. (Full article...)

  • Article of the Day

Image of the Day

Isla del Pescado, Salar de Uyuni, Bolivia, 2016-02-04, DD 42.JPG
Source: Wikimedia Commons.

On this day: January 25

January 25: Feast day of Gregory of Nazianzus (Eastern Orthodoxy); Tatiana Day in Russia

Battle of Mikatagahara
Battle of Mikatagahara

Ma Xiguang (d. 951) · Anna Gardner (b. 1816) · Xavi (b. 1980)

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].