Genius Engineering Inventions: From the Plow to 3D Printing

Genius Engineering Inventions: From the Plow to 3D Printing — page 3
MAKING PROGRESS century The society we live in is in a constant state of reinvention Every day new products and ideas come to market Some are excellent like the electric motor or the heart pacemaker while others are not so good for example Thomas Edison’s giant gelatin mold houses But these ideas all add to a history of innovation that dates back thousands of years to when our ancestors fi rst came up with the plow the wheel the clock and the countless other everyday items we take for granted And they all shape society Electricity gives us instant communication convenient kitchen gadgets and clean transport Medical advances have added years to the average life span Medieval moldboard plow ninth Antiseptic surgery 1860s 6