Wind Bag: set of 4 bags (TS0966)

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Wind Bag: set of 4 bags (TS0966) The challenge is to inflate a wind bag with a single breath of air. Easily done? Each bag is 2.3 metres long and 500 mm in circumference.Seems impossible but it can be done using a principle discovered by David Bernoulli back in 1783.The windbags come with a range of activities suited to young learners including,raising heavy objects., building shapes and structures and testing Bernoulli's principle. These windbags are ideal for Science Fair Projects.