The length of the finger dictates how fast the finger-nail grows. Therefore, the nail on your middle finger grows the fastest, and on average, your toenails grow twice as slow as your finger-nails.
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
The Steel Phantom in West Mifflin, PA, is the fastest roller coaster in America, reaching speeds of 80 mph.
Kangaroos can hop as fast as 40 miles per hour.
Alaska has the highest percentage of people who walk to work.