Google believes balloon access could help places suffering natural disasters get quickly back online. Tania Gilchrist, a resident who signed up for the Google trial, feels lucky she lost her power for only about 10 hours on the day of the quake.
Google engineers studied balloon science from NASA, the Defense Department and the Jet Propulsion Lab to design their own airships made of plastic films similar to grocery bags. Hundreds have been built so far.
The company has downplayed concerns about surveillance, emphasizing that they would not carry cameras or any other extraneous equipment.
(With AP inputs)