Project Loon will start next year in Indonesia, with a population of 255 million people, that only 1 in 3 now have access to the Internet.
Image credit Google
Google explains about the project, that needs 300 balloons for global internet coverage:
Project Loon balloons travel approximately 20 km above the Earth’s surface in the stratosphere. Winds in the stratosphere are stratified, and each layer of wind varies in speed and direction. Project Loon uses software algorithms to determine where its balloons need to go, then moves each one into a layer of wind blowing in the right direction. By moving with the wind, the balloons can be arranged to form one large communications network.
Mike Cassidy, vice-president of Project Loon, told the BBC:
“We need about 300 balloons or so to make a continuous string around the world.”
source Project Loon