How a Blimp Works
Blimps are lifted into the air by helium rather than hydrogen. The passenger car that is under the blimp has two propellers that helps it stay in the air, and not crash and burn. It also has a steering wheel that is in the passenger car that steers the airship. When a blimp returns to land, a pilot fills it with air through vents replacing the helium and makes it come down. Blimps are use in many was such as recording sport events from the air, advertising products and researching endangered animals.