Google's wifi ballon have to travel 3 times around the world
Google project loon aims to deliver wifi remote parts of the worls via souped upweather ballons which are designed to stay for 100 days.
the search giant's balloon manufacturing manager pam desrochers said that time limit is much longer than most weather balloons that travel at the stratospheric heights that loon balloon will achieve ,, cnet reports.
She further said that the Loon's balloons must be exceptionally hardy, because they will be subject to both hot and cold extremes on a daily basis, causing the material to stretch and contract.
The manager added that the balloons need to be resistant to ultraviolet radiation and inclement weather, as they could lead to pinhole leaks and more serious destructive forces, the report said.
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