Bridges
Bridges have long been a part of our lives. The oldest datable bridge in the world still in use is the slab-stone single-arch bridge over the river Meles in Izmir (formerly Smyrna), Turkey, which dates from 850 BC. Remnants of Mycenaean bridges dated c. 1600 BC exist in the neighborhood of Mycenae, Greece over the River Havos. Bridges have made it possible for us to cross over water, over a deep valley, and over rough terrain. We can walk over them or we can drive over them. There are even bridges for trains. I have gone over my share of bridges. Growing up in Michigan, I went over the Mighty Mackinac bridge a number of times. It is the fifth longest suspension bridge in the world. I have been on the Overseas Highway, a series of 42 bridges that takes you from Miami to Key West. I have even been on what I call “The Brunnel”. That is the bridge-tunnel that goes over and under the Chesapeake Bay in Virginia. Most of these larger bridges we have to pay to go over. When you are in a