In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
The Caspian Sea is also classed as the world's largest lake.
52
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
105
There was once an undersea post office in the Bahamas.
241
Two dogs were among the Titanic survivors.
262
Water is actually naturally blue.
48