In Denmark there is a special military unit that uses dog sleds for official transport.
For a spacecraft to overcome the Earth’s gravity, it needs an average speed of 12 kilometers per second.
In 1898 Nikola Tesla successfully demonstrated a “ship with a remote control” as a continuation of the research on radio frequency.
People who spend the most time in front of television sets are Japanese. They spend on average 9 hours in front of the TV.
The Mongolian khan and the Chinese emperor went hunting with 500 falcons and an entourage of 10.000 people.
The weight of a diamond is measured in carats, and one carat is 0.2 grams. The heaviest diamond that has ever been found to this date is weighed 621 grams or 3105 carats.