"It is not the mountain we conquer but ourselves."
[Edmund Hillary]

Quote of the Day, from brainyquote.com (2021/05/16)

Article of the Day

Launch of Apollo 7

Apollo 7 (October 11–22, 1968) was the first crewed flight in NASA's Apollo program. It was commanded by Wally Schirra, with command module pilot Donn F. Eisele and lunar module pilot R. Walter Cunningham, and saw the resumption of human spaceflight by the agency after the fire that killed the three Apollo 1 astronauts in January 1967. Determined to prevent a repetition of the fire, the crew spent long periods of time monitoring the construction of their Apollo command and service module (CSM). After liftoff on October 11, 1968, extensive testing of the CSM took place, along with testing of techniques to be used on lunar missions, and also the first live television broadcast from an American spacecraft. Despite tension between the crew and ground controllers, the mission was a complete technical success, giving NASA the confidence to send Apollo 8 into orbit around the Moon two months later, but in part because of those tensions, no member of the crew flew in space again. (Full article...)

  • Article of the Day

Image of the Day

Hvannhagi 9.jpg
Source: Wikimedia Commons.

On this day: May 16

May 16

Shield nickel
Shield nickel

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].