It's not necessary, but its always good to come prepared.
The amount of light that passes through the lens and reaches the digital sensor is called exposure.
So, exposure determines how much light or darkness will get to the sensor, and thus how light or dark the image will be when you take a photo. There are settings that are responsible for this: ISO, aperture, and shutter speed - which together are called "the exposure triangle."
Answer:
It's either going to be plot development or the irony
The National Museum of the Great Lakes is a nice tourist attraction on all things of Lake Erie, the Erie Canal, and the Industrial Revolution of America. : D
