Every day, people cook and eat food that has come from farms. Bread comes from grain that grows on farms, and fruits and vegetables also often come from there. Milk, […]
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.