- Season 1 Episode 22 Escalator and Wheelbarrow
Maddie is at a shopping centre. She uses special cameras to find out how an escalator works to move people from one floor to another. An animation shows the hidden cogs and chains inside the escalator which make the steps move. Next, Maddie visits a factory to see how wheelbarrows are made from metal sheets to help people move heavy things around outside. She attaches a special camera to a big robot to see it working.
First Air Date: Jan 01, 1970
Last Air date: Jan 01, 1970
Season: Season
Episode: Episode
Runtime: minutes
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