Jan 092025
 
Cave Frostwork and Popcorn

Cave Frostwork and Popcorn

Wind Cave National Park was established in 1903. The 33,500-acre park, located in South Dakota, hosts a mixed-grass prairie ecosystem with bison, elk, and prairie dogs. Below ground is a barometric wind cave with at least 137 miles of explored passages. The cave is unusually large and was formed by boxwork. Children can visit the park’s website and view some of its great multimedia presentations at: http://www.nps.gov/wica.

Nov 102025
 

Windshield Wiper Patent

Windshield wipers were patented by Mary Anderson of Birmingham, Alabama, in 1903. Her “window cleaner devices for electric cars and other vehicles” received patent number 743801. She invented the windshield wipers after she was a passenger on a trolley where the conductor could not easily clean the windshield of ice and snow. Children could view her patent at: Windshield Wiper Patent.

Dec 172025
 

First Flight

Wilbur and Orville Wright flew the first airplane in 1903 near Kitty Hawk, North Carolina. Orville piloted the first successful flight. Then Wilbur had his turn. Each flight lasted less than a minute. The flights were results of years of experimentation.  Children could read Russell Freedman’s The Wright Brothers: How They Invented the Airplane.