Helicopter Harry begins the adventure with Leonardo Da Vinci's first design of the helicopter 500 years ago. Helicopter Harry explains how Da Vinci studied animals and insects like the dragonfly, birds and pterodactyls, to fashion his first helicopter. ... And Da Vinci also created the name of the first helicopter, helixpteron, which means spiraling wing. ...

• Word Count: 1571
• Approx Pages: 6
• Grade Level: High School

The Development of an Airplane Introduction The idea of flight has fascinated people for centuries, even to this day, which is why I decided to do research on airplanes. When I researched the history on planes, I was surprised at the effort and the time people long ago spent trying to...

• Word Count: 2285
• Approx Pages: 9
• Has Bibliography
• Grade Level: High School