Once a boy wanted to fly. He made a pair of wings. He used some wax (错) to keep thefeathers on the wooden frame. He flew and flew, and flew too close to the Sun. TheSun melted the wax, and the feathers were blown off by the wind. Down came theboy into the ocean.
This is just a story. But it tells us that man has always dreamed offlying. In 1783, this dream came true. Two French brothers invented the hot-airballoon. It rose a thousand feet high.
It took almost 100 years for man to move from the hot-air balloon to thefirst airship. The first airship was invented in the late 1800s. It was apowered (装有发动 机的) balloon.
In North Carolina, less than twenty-five years later, the WrightBrothers flew the first airplane. This first flight, in 1903, lasted less thanhalf a minute! It covered just a few feet.
By the 1960s, man had moved from airplanes to spacecrafts. Today, space craftscan go around the world in less than two hours. Tomorrow. Who knows?
