"Dreams are necessary to life."
[Anais Nin]

Quote of the Day, from brainyquote.com (2023/02/07)

Article of the Day

Thea Seddon

Rhea Seddon (born 1947) is an American surgeon and retired astronaut for NASA. After being selected as part of the first group of NASA astronauts to include women in 1978, she flew on three Space Shuttle flights, as mission specialist on STS-51-D and STS-40, and as payload commander for STS-58, accumulating over 722 hours in space. On these flights, she built repair tools for a US Navy satellite and performed medical experiments. A graduate of the University of California, Berkeley, and the University of Tennessee College of Medicine, Seddon was awarded her doctor of medicine degree in 1973. During her residency with the University of Tennessee hospitals, she was the only woman in the General Surgery Residency Program. Before, during and after her career in the astronaut program, she worked in hospital emergency departments. She retired from NASA in November 1997 and became Chief Medical Officer of the Vanderbilt Medical Group. (Full article...)

  • Article of the Day

Image of the Day

"Broke, baby sick, and car trouble!" - Dorothea Lange's photo of a Missouri family of five in the vicinity of Tracy, California.jpg
Source: Wikimedia Commons.

On this day: February 6

February 6: Sámi National Day (1917); Waitangi Day in New Zealand (1840)

Queen Elizabeth II
Queen Elizabeth II

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].