Old huge machinery parts inside the Foundry at Bethlehem Steel, Bethlehem Pennsylvania.

Because I was granted special private access to the site before renovations, I was able to get this shot before it was cleared. What amazes me about just viewing the size of these gears is without a computer, and modern technology. Gear had to precisely fit into gear, wheel-wheel, counter weights, gravity, physics...and so huge. If for some reason we need to go analog again... can we do it?