- The first sailing boats were built in Egypt.
- Wind doesn't make a sound until it blows against an object.
- The world's first roller coaster opened in 1884 at Coney Island New York.
- A humming bird flaps its wings up to 90 times a second (5,400 times a minute).
- A group of geese is called a gaggle.
reload more facts | visit cool facts
add this widget to your website