Google project Loon: let’s discover how it works!

The approach adopted by Google engineers aims to be quiet simple: Project Loon balloons float in the stratosphere, twice as
high as airplanes and the weather. Therefore, they are carried around the Earth by winds and they can be steered by rising or descending to an altitude with winds moving in the desired direction. People connect to the balloon network using a special Internet antenna attached to their building. The signal bounces from balloon to balloon, then to the global Internet back on Earth.