"Set your goals high, and don't stop till you get there."
[Bo Jackson]

Quote of the Day, from brainyquote.com (2026/05/15)

Article of the Day

Contested area during Operation Brevity
Contested area during Operation Brevity

Operation Brevity was an offensive conducted in May 1941, during the Western Desert campaign of the Second World War, against Axis front-line forces in the SollumCapuzzoBardia area of the border between Egypt and Libya (map pictured). British Middle East Command general Archibald Wavell defined Operation Brevity's main goals as the acquisition of territory from which to launch a further planned offensive toward Tobruk. On 15 May, Brigadier William Gott attacked in three columns with a mixed infantry and armoured force. The Halfaya Pass was taken against stiff Italian opposition, and Fort Capuzzo deeper inside Libya was captured, but German counter-attacks under Colonel Maximilian von Herff regained the fort during the afternoon. Gott conducted a staged withdrawal to the Halfaya Pass on 16 May, and Operation Brevity ended. The Halfaya Pass was recaptured 11 days later during Operation Skorpion, a German counter-attack. (Full article...)

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Source: Wikimedia Commons.

On this day: May 15

May 15: Feast day of Saint Carthage (Catholicism); Nakba Day in Palestinian communities

Baily's beads observed during a solar eclipse in 2019
Baily's beads observed during a solar eclipse in 2019

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].