When a strange old lady offers her a necklace, Mona realizes that the magic item will grant her every wish. That night she dreams about all the things she has ever wanted, and wakes to find them all crowding her room. So much so that when her mother calls her to Grandad's party, Mona can't get out!
How many sheets of paper was the Gutenberg printing press capable of printing in a day? What were the first words spoken over a telephone? Who were the first people to use magnetic compasses for navigation? How did Copernicus change the way we look at Earth’s place among the planets? Inventions and Discoveries traces the history and development of objects and ideas that have changed how we li…