UFO. United States

Balloon — aircraft (balloon), which is used for the flight gas, which is lighter than air.

Balloons - different sizes and shapes size toy, often made of latex. Is inflated with air or other gas. If the gas is lighter than air, the ball gains the ability to fly. The photo looks like a small dot. The colors and the opacity depends on the texture and color of the ball.

The bubble film consists of a thin layer of water enclosed between two layers of molecules, often soap. These layers contain molecules, one of which is hydrophilic and the other hydrophobic. The hydrophilic part is attracted a thin layer of water, while the hydrophobic, on the contrary, is pushed. As a result, the layers that protect the water from rapid evaporation and reduce surface tension. Usually in the form of a sphere with iridescent surface (sometimes in the wind maybe a fraction of a second to take unusual forms, unusual shapes can be obtained by gluing several spheres).