In the small city of Hamburg, Iowa, students at Marnie Simons Elementary School are given a unique opportunity. Along with their usual classes, they can also watch over a duck […]
The helicopter was invented by the Chinese in the 4th century, more than a 1,000 years before Leonardo da Vinci. It was called the Bamboo Dragonfly and could fly 25 feet (7.6 m) up and down. The first modern helicopter was invented by the French.