Every morning, people around the world get up and take their usual transportation to work or school. But what is their usual transportation? In North America it might be the […]
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.