International Joke

A joke a day keeps doctors away


July 5th, 2013

  1. Scientific dating estimates the Earth to be around 4.54 billion years old with a 1% margin of error.
  2. Oxygen forms approximately 47% of the crust of the Earth.
  3. Earth has poles at the bottom and the top of the planet called the north and south poles which makes it a huge magnet.
  4. An Earth day is not 24 hours long. It’s actually 23h, 56m, 4s which is the time that the planet needs to rotate on its own axis.
  5. This is the only planet from the solar system which has water in all the matter states: gas (as clouds), liquid (rain, sea, etc) and solid (ice).
  6. Scientists say that an Earth day had around 20 hours a few million years ago and that a million years from now it will have 27 hours.
  7. The coldest place on Earth is Vostok (in Antarctica) and the hottest area is El Azizia (in Libya). That’s interesting!
  8. Did you know that on July 21st 1983, the coldest temperature ever on the planet earth was recorded at a frightening 128.6 degrees fahrenheit below zero (-89.2  ºC) in Antarctica by Soviet scientist at the Vostok expedition station? Thats one cool fact!
  9. The Earth’s year has 365.2564 days. Thanks to this extra .2564, every four years, the leap year appears, which has an extra day.
  10. The oldest tree from Earth is estimated to be about 4600 years old and it’s a bristlecone pine from California. That’s an amazing fact!
  11. The Mars rover Curiosity has a Twitter account… @MarsCuriosity
  12. In August 2012, a planetary geologist and professor at the University of California (An Yin) made the discovery that Mars does have tectonic plates. It was previously believed that earth was the only planet with plate tectonics and that Mars was too small and too cold below surface to have tectonic plates. Professor Yen has referred to the 2 tectonic plates he discovered as Valles Marineris North and Valles Marineris South.
  13. Now that we know Mars has plate tectonics, it can be concluded that it also has marsquakes similar to earthquakes on earth which could explain why large boulders have recently moved on mars seen by satellite imagery.
  14. After traveling approximately 352 kilometers (215 million miles) and more than 8 months at approximately 12,000 miles per hour, Nasa’s $2.5 billion Curiosity Rover landed on Mars on August 5th, 2012 and is expected to be in operation for about 2 earth years at 23 months or one Mars year.
  15. Matt Heverly is the lead engineer over the team that commands curiosity rover’s movements.
  16. Curiosity rover has a top speed of about one tenth of a mile per hour or 150 meters per hour.
  17. Curiosity Rover is equipped with 17 cameras.
  18. One of the dirty dusty thin looking rocks Curiosity Mars rover ran over actually broke apart. The rock appeared to be a bright white on the inside of the rock. Scientists are calling the rock Tintina as a nickname and it measures roughly 1″ x 1.5″ in size “2.54 – 3.81 centimeters” Tintina is the brightest native object seen so far on Mars.
  19. As of February 2013, it takes about 19 minutes for a message or signal to travel to or from Mars.
  20. Mars hosts the largest volcano in our solar system called Olympus Mons which is approximately 22 kilometers “14 miles” high also making it taller than any mountain in the solar system. Almost 3 times the height of Mount Everest.
  21. Mars hosts the deepest known canyon in our solar system which is named Melas Chasma.
  22. The approximate diameter of mars is 4,220 miles. For comparison reasons, the approximate diameter of the earth is 7,926 miles.
  23. A year on Mars is 687 days long. A year on earth is 365.25 days long.
  24. One full day on Mars is 24 hours 40 minutes long.
  25. The average temperature on Mars is minus 81 degrees fahrenheit. The average temperature of the earth is 57 degrees fahrenheit.
  26. The temperature on Mars can reach below 175 degrees below zero.
  27. The distance varies by the second due to constant movement but the approximate average distance Mars is from the sun is 142 million miles away while the approximate average distance of the earth from the sun is 93 million miles.
  28. A ship that tries to escape this planet’s gravity needs to have a 5 km/s escape velocity.
  29. In 1976 the United States landed two probes on Mars named Viking 1 and Viking 2 which sent back the very first color photos from Mars to earth.
  30. The famous face on Mars picture was taken on 7-25-1976 by the United States probe Viking 1.

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