Components, timing, energy flow, and the machinery of magic Imagine a workshop at two in the morning. A brass housing lies open on the bench. Copper wire curls through its interior. A glass chamber holds a pale blue flame that gives off no heat. Beside it, a notebook records six failed attempts, three adjustments to the timing, and one warning written so hard the pen nearly tore the page: Do not open the pressure valve while the circle is active. At the center of the device s