Helium balloon lifts up to two tons of building material over Tibet's mountains

Helium balloon lifts up to two tons of building material over Tibet's mountains uk.news.yahoo.com

China carried out its first test of a two-ton-class tethered balloon in Tibet on Monday at an altitude of about 13,000 feet. The roughly 80-foot helium balloon lifts building material over rugged high...

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#balloon #lifts #helium #material #balloon lifts #building material #helium balloon #tons

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runnr_az8 days ago

how do they guide it?

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