"It is a wise father that knows his own child."
[William Shakespeare]

Quote of the Day, from brainyquote.com (2024/06/21)

Article of the Day

The giraffe is a large African hoofed mammal belonging to the genus Giraffa. It is known for its extremely long neck and legs, its horn-like ossicones, and its spotted coat patterns. Traditionally, giraffes have been thought of as one species, but more recent evidence has proposed dividing them into multiple species. Giraffes usually inhabit savannahs and woodlands. Their food source is leaves, fruits, and flowers of woody plants, primarily acacia species, which they browse at heights most other herbivores cannot reach. Giraffes live in herds of related females and their offspring or bachelor herds of unrelated adult males, but are gregarious and may gather in large aggregations. Females bear sole responsibility for rearing the young. Giraffes have been featured in paintings, books, and cartoons. Giraffes are assessed as vulnerable to extinction by the International Union for Conservation of Nature. They are found in numerous national parks and game reserves. (Full article...)

  • Article of the Day

Image of the Day


Source: Wikimedia Commons.

On this day: June 21

June 21: Fête de la Musique; International Day of Yoga; National Indigenous Peoples Day in Canada; Xiazhi in China (2024)

Replica of the Manchester Baby
Replica of the Manchester Baby

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].