"We have a limited source of natural resources that recharge them. What exactly the mechanism of that is, we don't know yet, but I imagine it's a chemical or physical reaction of some sorts. With luck, we'll find a way to replenish them routinely."

Couldn't he have stuck with the specific questions? That wide one took some thought on her behalf.

"The people brought here have incompatible histories. We may have been transported through time and space, but something even more fundamentally different appears to be at play here. Keep an open mind, and try not to make any assumptions."