A significant part of aeronautical science is a branch of dynamics called aerodynamics, which deals with the motion of air and the way that it interacts with objects in motion, such as an aircraft.
When you pour a liquid from one container to another, the liquid takes the shape of the container. The volume of the liquid is the same. The properties that solids and liquids share are that they both have definite volume.
One common characteristic is that fluids have no fixed shape and are easily deformed. Liquids tend to take the form of a sphere in space, while gases seem shapeless. Under the influence of gravity, liquids take on the shape of the container, while gases often flow out of any container.iquids take on shape of sphere. A liquid in space will form the natural shape of a sphere. This is because the attraction between its atoms or molecules is greater than the forces from their kinetic energy moving outward. A sphere is a shape with the smallest surface area for a given volume of material.