Have your parents or teachers ever told you to “change your attitude”? It’s amazing how your attitude can have so much to do with how successful you are in life. […]
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.