"Success is getting what you want. Happiness is wanting what you get."
[Dale Carnegie]

Quote of the Day, from brainyquote.com (2026/07/30)

Article of the Day

Tiger

The tiger (Panthera tigris) is a large cat and a member of the genus Panthera native to Asia. It is recognisable by its black, vertical stripes on orange fur. It is traditionally classified into nine subspecies, though some recognise only two subspecies. Tigers currently inhabit the Indian subcontinent, Southeast Asia, and the Russian Far East and Northeast China. They mainly live in forested habitats, where they lead a mostly solitary life. They are apex predators and prey mainly on hooved mammals. A male tiger mates with the multiple females within his home range. Females give birth to usually two or three cubs that stay with their mother for about two years. Tigers are considered to be endangered with their main threats being habitat destruction and poaching for fur and body parts. They are legally protected in all range countries. The tiger is among the most popular of the world's charismatic megafauna and is featured in the ancient cultures of Asia and modern culture worldwide. (Full article...)

  • Article of the Day

Image of the Day


Source: Wikimedia Commons.

On this day: July 29

July 29

Gaetano Bresci
Gaetano Bresci

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].