The Balloon Tank

http://www.baraskit.se/random/archive/85/balloon_tank.html

A balloon is a flexible bag filled with a gas, such
as helium, hydrogen, nitrous oxide or air. Early
balloons were made of dried animal bladders. Modern
balloons can be made from materials such as rubber,
latex, polychloroprene or a nylon fabric. Some balloons
are purely decorative, while others are used for
specific purposes such as meteorology, medical treatment,
military defense, or transportation. A balloon’s
properties, including its low density and relatively
low cost, have led to a wide range of applications…”

balloon-tank.jpg

“German Panther” is a 2007 sculpture of
a Panzer tank made out of balloons, from Hans Hemmert.
It’s nearly 10 metres long