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Children's factual show. Nina investigates why tall buildings don't fall over. Her engineers visit One Canada Square and get stuck into the building's foundations.

Nina investigates why tall buildings do not fall over with the help of Luke, her sight neuron. Engineers Archie, James and Joshua visit Nina in her workshop and discover that tall buildings are really useful in cities because they do not take up much room on the ground. They go to One Canada Square in Canary Wharf, one of the tallest buildings in the country, and find out that buildings have foundations under the ground which means they do not fall over.

First shown: 4.30pm 4 Mar 2013
Expires today 4:30pm Last Chance Duration 15 mins

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