Making An Invention Model

1. Invent Iowa
It sounds like you had fun making this invention. model, prototype, or diagram of the invention which provides evidence that it will work

2. Making the Modern World - Icons Of Invention - Technology - 1820-1880
Icon: Model of the paddle engines of the Great Eastern, 1853 Making the Modern World is sponsored by the ISB fund of the Treasury and the Cabinet Office

3. Making the Modern World - Icons Of Invention - Technology - 1880-1939
Icon: Silver-plated model of the Forth Bridge, 1882 Making the Modern World is sponsored by the ISB fund of the Treasury and the Cabinet Office.