"A place for everything, everything in its place."
[Benjamin Franklin]

Quote of the Day, from brainyquote.com (2026/07/05)

Article of the Day

Line drawing of a Lyon-class battleship
Line drawing of a Lyon-class battleship

The Lyon class was a set of battleships planned for the French Navy (Marine Nationale) in 1913, with construction scheduled to begin in 1915. The class was to have consisted of four ships, named Lyon, Lille, Duquesne, and Tourville. The first two were named for cities in France, and the latter pair honored the French admirals Abraham Duquesne and Anne Hilarion de Tourville. The Lyon class would have featured superior firepower over the previous Normandie class, utilizing a fourth quadruple-gun turret to mount a total of sixteen 34 cm (13.4 in) guns. The French were aware that the latest British battleships—the Queen Elizabeth class—were to be armed with 38 cm (15 in) guns, but they believed that their 34 cm guns would be effective at the expected battle ranges in the Mediterranean. Construction on the Lyon class was cancelled due to the outbreak of World War I in August 1914, before any of the ships were laid down. (Full article...)

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Image of the Day


Source: Wikimedia Commons.

On this day: July 5

July 5: Fifth of July in New York

Coat of arms of the Regency of Algiers
Coat of arms of the Regency of Algiers

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].