The upper echelons were waiting for Zhao Yi.
They knew Zhao Yi had examined the nuclear reaction's apparatus and materials, and they were aware he was conducting related theoretical research; what they were waiting for was the experimental report that Zhao Yi was working on.
Whether the experiment yielded results or not, a report would certainly be submitted.
Zhao Yi had been conducting research continuously, and since the experiment ended, he had not yet submitted an experimental report, which meant that the experiment had not yielded results and was, therefore, not entirely concluded.
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Yanhua University.
Zhao Yi was still immersed in his research, facing a difficult problem. The 'conditions' revealed a loose structure in uranium, but in reality, the nucleus remained stable. Theoretically, as uranium-235 is naturally radioactive, even a minor looseness in the structure would certainly lead to involvement in the reaction.