ial type of oscillating field that would keep it
open."

"H-m-m-m--that's an angle I might try. Any suggestions?"

Kendall had suggestions, and rapidly he outlined a development that
appeared from some of the earlier mathematics on light, and might be
what they wanted.

* * * * *

Kendall, however, had problems of his own to work on. The question of
atomic energy he was leaving alone, till the present experiment either
succeeded, or, as he rather suspected, failed as had its predecessors.
His present problem was to develop more fully some interesting lines of
research he had run across in investigating mathematically the trick of
turning electric to magnetic fields and then turning them back again. It
might be that along this line he would find the answer to the speed
greater than that of light. At any rate, he was interested.

He worked the rest of that day, and most of the next on that line--till
he ran it into the ground with a pair of equations that ended with the
expression: dx.dv=h/(4[pi]m). Then Kendall looked at them for a long
moment, then he sighed gently and threw them into a file cabinet.
Heisenberg's Uncertainty. He'd reduced the thing to a form that simply
told him it was beyond the limits of certainty and he ran it into the
normal, natural uncertainty inevitable in Nature.

Anyway he had real work to do now. The machine was about ready for his
attention. The mechanicians had finished putting it in shape for
demonstration and trial. He himself would have to test it over the rest
of the afternoon and arrange for power and so forth.

By evening, when Commander McLaurin called around with some of the other
investors in Kendall's "bank" on Luna, the thing was already started,
warming up. The fields were being fed and the various scientists of the
group were watching with interest. Power was flowing in already at a
rate of nearly one hundred thousand horsepower per minute, thanks to a
special line given them by New York Power (a Kendall property). At ten
o'clock they were beginning to expect the reaction to start. By this
time the fields weren't gaining in intensity very rapidly, a maximum
intensity had been reached that should, they felt, break the atoms soon.

At eleven-thirty, through the little view window, Buck Kendall saw
something that made him cry out in amazement. The mercury metal in the
receiver, behind its layers of screening was beginning to glow, with a
dull