Student Blogging Challenge
I choose activity #5. I couldn't get in contact with my grandmother, but on the internet I was searching through different inventions since my grandmother was born. The one that I thought was the most important invention is the artificial pacemaker. In 1950 John Hopps, Canadian created the the world's first pacemaker. Even though it was powered through AC wall sockets it still worked. John tried to create a rechargeable battery, but he didn't come out being successful. Later on in 1958 the first wearable and clinical pacemaker was created.