Episode Content: John's introduction to nuclear during his work with the Geological Survey.   How radiocarbon dating actually works.   The interdisciplinary nature of the nuclear industry.   In what circumstances types of fuels are considered efficient.   Energy produced with plutonium v. uranium.   Core-reload strategies and how it can save billions in electricity production.   Improving efficiency without compromising safety.   The importance of economies of scale and innovation culture.   Why studying the effect of radiation on materials is important.   Isotope production and its different medical applications.   Stress-test procedures and radioactive contrast.   A discussion about high density fuel.