A breakthrough of the more literal sort occurred on the last day of November at the Stanford Linear Accelerator Center. This picture was taken in the Stanford Linear Collider tunnel shortly after miners broke through the last barrier separating the two SLC arcs that had been bored simultaneously during the course of the year. The 9000‐foot SLC tunnel consists of two great arcs, emerging from the downstream end of the 2‐mile SLAC linac like the arms of a stethoscope. In place of the space between the doctor's ears is a straight section a few hundred feet long, joining the two arcs.

This content is only available via PDF.
You do not currently have access to this content.