What causes a blimp to operate?
Blimps are related to balloons and dirigibles and are indirectly kin to ships and floating rafts. A blimp has engines to guide it, and a balloon does not but both stay aloft for the same reason. A power driven ship floats for the same reason that a motorless raft bobs on top of the waves. A blimp is operated by lifting force and thrusting power. Its lifting power is a whopping bag of gas that is 1ighter than the surrounding air. A balloon also lifts aloft because it is filled with lighter than air gases. These hulls of gas rise in the air for the same reason a cork floats on top of the water. They are pushed up because they are lighter or less densse than the air or water around them. This force is called buoyancy. A high riding balloon must drift at the mercy of the breezes, but a blimp has Engines and propellers to steer it. The pilot can turn it and keep it on course in calm weather and against gentle winds. The Equipment that provides this guiding and thrusting power is in the car
