Blimps are airships. It is filled with a gas called helium that is lighter than air. The helium gas gives the blimp shhape and keeps it afloat. Under the gas bag is a place where the pilot sits. The place where the pilot and crew sit is called the gondola. The pilot needs the fins to steer the blimp. The rudder makes the blimp turn right or left. The idea of blimps came from balloons. The balloons were filled with hot air. Hot air is lighter than cold air, and this is what made the ballons go up.
A German count named Ferdinand von Zeppelin built airships to carry passengers.Blimps today are safe and common sight at sports events. ( )