Industrial Nature

We have built strange things with this discovery of ours.
We used for it the copper wires which we found here under the
ground. We have walked the length of our tunnel, with a candle
lighting the way. We could go no further than half a mile, for
earth and rock had fallen at both ends. But we gathered all the things
we found and we brought them to our work place. We found strange
boxes with bars of metal inside, with many cords and strands and
coils of metal. We found wires that led to strange little globes
of glass on the walls; they contained threads of metal
thinner than a spider's web.

- Ayn Rand