"The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants."
[Thomas Jefferson]

Quote of the Day, from brainyquote.com (2026/04/23)

Article of the Day

Beyoncé

Beyoncé (born 1981) is an American singer, songwriter, actress, and businesswoman. She rose to fame in the late 1990s as the lead vocalist of Destiny's Child, one of the best-selling girl groups. Beyoncé then embarked on a successful solo career, releasing eight chart-topping studio albums—from Dangerously in Love (2003) to Cowboy Carter (2024)—and becoming one of the best-selling musicians in history. Her singles include nine US Billboard Hot 100 number ones, among them "Crazy in Love", "Irreplaceable", "Single Ladies (Put a Ring on It)", "Break My Soul", and "Texas Hold 'Em". Her accolades include a record 35 Grammy Awards, a Primetime Emmy Award, and a Peabody Award. A cultural icon spanning three decades, Beyoncé was named Billboard's greatest pop star of the 21st century and Rolling Stone's eighth-greatest singer of all time. Her business endeavors include the nonprofit BeyGood, the hair care brand Cécred, the whiskey SirDavis, and Parkwood Entertainment. (Full article...)

  • Article of the Day

Image of the Day


Source: Wikimedia Commons.

On this day: April 23

April 23: National Sovereignty and Children's Day in Turkey (1920)

Blanco Encalada
Blanco Encalada

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].