User:J Hill

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Welcome to my userpage. I became a Wikipedian on 22 August 2006; However, I have been contributing to Wikipedia since 18 February, 2006. Recently, I have begun "punching up" stubs in Wikiproject Chemicals.


Featured Article[edit]

Mars

Mars is the fourth planet from the Sun. It was formed approximately 4.5 billion years ago, is a terrestrial planet and is the second smallest of the Solar System's planets with a diameter of 6,779 km (4,212 mi). A Martian solar day (sol) is 24.5 hours and a Martian solar year is 1.88 Earth years (687 Earth days). Mars has two small and irregular natural satellites: Phobos and Deimos. Carbon dioxide is substantially present in Mars's polar ice caps and thin atmosphere. It has the highest mountain in the solar system, Olympus Mons, and the largest canyon, Valles Marineris. There are large annual temperature swings on the surface, between −78.5 °C (−109.3 °F) and 5.7 °C (42.3 °F) – similar to Earth's seasons. Due to its geological history, the possibility of past or present life on Mars remains of great scientific interest. Mars has been explored by uncrewed spacecraft and rovers, and is an attractive target for future human exploration missions. (This article is part of a featured topic: Solar System.)

Recently featured:

In the News[edit]

Nemo
Nemo

Selected anniversaries[edit]

May 14: Feast day of Saint Matthias (Catholicism); Independence Day in Israel (2024)

Monument to the Battle of Lewes
Monument to the Battle of Lewes

More anniversaries:

Gallery[edit]

Tarantula Nebula
The Tarantula Nebula, also known as 30 Doradus, is a large H II region in the Large Magellanic Cloud (LMC). It is one of the largest H II regions in the Local Group, with an estimated diameter around 650 to 1860 light years. It is around 160,000 light-years from Earth and has apparent magnitude of 8. The Tarantula Nebula was first observed by Nicolas-Louis de Lacaille during an expedition to the Cape of Good Hope between 1751 and 1753. This high-resolution photograph was taken by the Hubble Space Telescope and shows the star-forming region of Tarantula Nebula with the R136 super star cluster at its center.Photograph credit: NASA, ESA, Space Telescope Science Institute


Wikipedia vandalism information
(abuse log)

Level 5
Level 5

Very low level of vandalism

[viewpurgeupdate]


1.97 RPM according to EnterpriseyBot 06:10, 14 May 2024 (UTC)

Sub pages[edit]

Quotes[edit]

  • “The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.” — Isaac Asimov
  • “When I read about the way in which library funds are being cut and cut, I can only think that American society has found one more way to destroy itself.” — Isaac Asimov
  • “John Dalton's records, carefully preserved for a century, were destroyed during the World War II bombing of Manchester. It is not only the living who are killed in war.” — Isaac Asimov
  • “Courage is not the lack of fear. It is acting in spite of it.” — Mark Twain
  • “The more you know, the more you realise that you know nothing.” — Socrates
  • “The important thing is not to stop questioning.” — Albert Einstein
  • “We must respect other religions even as we respect our own. Mere tolerance thereof is not enough.” — Gandhi
  • “The wisest mind has something yet to learn.” — George Santayana

Other wikis[edit]

This user has a page on Wikibooks.