You could power generators that could light up a stadium.
The first class may again be subdivided into generators in which the water rises in contact with the carbide, in which it drips upon the carbide, and in which a vessel full of carbide is lowered into water and again withdrawn as generation becomes excessive.
One of the generators is out.
The orchestra fell silent, and somewhere someone --possibly the host --called for the generators to be turned on.
We have our own kinds of generators, ones that don't work nearly as well.