intra-atomic

No scientist upon Osnome has ever had an inkling that intra-atomic energy exists.

Those radiations originate we know not where, probably as a result of intra-atomic reactions.

Besides, if he had either radioactive accumulators or intra-atomic energy, he would have cut us up long ago.

Ever since man learned how to liberate intra-atomic energy, the vortices of disintegration had been breaking out of control.

Like fire, only worse, intra-atomic energy was a good servant, but a terrible master.