Those radiations originate we know not where, probably as a result of intra-atomic reactions.
It is also evident that they have solved the secret of intra-atomic energy.
And of course they've got intra-atomic energy the same as we have.
Besides, if he had either radioactive accumulators or intra-atomic energy, he would have cut us up long ago.
No scientist upon Osnome has ever had an inkling that intra-atomic energy exists.
Like fire, only worse, intra-atomic energy was a good servant, but a terrible master.