When September comes, students get ready to head back to school. When October comes, everyone gets ready for Halloween. From walking among spirits to seeking candy from neighbours, the day […]
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.