Complex sentence: He provided the Committee with a technical note on the breakaway corrosion of Magnox nuclear fuel, demonstrating the then hitherto undisclosed highly unstable pyrophoric and, resulting from this disclosure, he provided evidence on the secrecy practised by the UK nuclear industry.
Split into simpler sentences: He provided the Committee with a technical note on the breakaway corrosion of Magnox nuclear fuel, demonstrating the then hitherto undisclosed highly unstable pyrophoric reaction. Resulting from this disclosure, he provided evidence on the secrecy practised by the UK nuclear industry.