The Magic of Metal Manufacturing

Your entire world exists because we figured out how to force metal into submission.

Manufacturing is basically industrial magic. It starts in the foundry,

melting rocks until they turn into liquid so we can pour them into sand molds to make engine parts.

If we aren't melting it, we are crushing it with massive rollers or fusing

it together with electric arcs in welding. But the old school is meeting the new

school. Now we have CNC machines reading code to cut steel with microscopic

precision and 3D printers building impossible shapes layer by layer. We went from blacksmiths

to robotic arms, and that is how you build civilization.