Her invention was revolutionary, laying the groundwork for modern home surveillance. An item we often take for granted, the ironing board, was improved by Sarah Boone, a seamstress from North ...

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Nina looks at different household inventions and finds out how they work. With the help of her trusty neurons she examines the items to answer children's questions.

Nina looks at different household inventions and finds out how they work. With the help of her trusty neurons she examines the items to answer children's questions ...