Bridges have enormous impacts on society. Historically, having a bridge meant that you can trade a new business with the other side, increasing prosperity. Bridges give shelter when it is raining and if you are down on your luck, you might even sleep under a bridge. Even in mathematics, bridges play a role given the Seven Bridges of Königsberg problem. For many people a bridge is a way to get, for instance, across a river. When a bridge out of order for a considerable amount of time, as happened a while ago in my hometown it is a nuisance for most people. Bridges are made of all kinds of materials like wood, concrete, steel or any other combination. Even a cardboard bridge is an option. But did you know that a 3D printed bridge will soon appear in Amsterdam?
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