Maddie's Do You Know?TV Show
(2016) • Season 1, Episode 20
HD
★ 0.0
IMDb: 0.0
Seasons: 5
en
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.
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