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My first solar balloon - tetroon

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Uploaded on Nov 1, 2009

Made from 16 ordinary trash bags (60 l each) taped together with 30m adhesive.

Balloon's volume ~2.5 m3; weight ~100g; external temperature ~5 C. "If found..." message attached (no answer till now).

Check this web-page how to make it:
http://www.solar-balloons.com/ht_tetr...

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