Kyra Carson turns a wheel on the lathe, bringing a chisel into contact with a foot-long aluminum cylinder. As the cylinder spins, the chisel shaves minute slivers from its surface, sending curly ...

Danielle Roberts lays down her welding torch, raises her helmet, and wipes a trickle of sweat off her face, leaving behind some smudged dirt on her smiling face. The 19-year-old woman is a full-time ...