b'A Sliding Doors momentFeatureAspects of innovation: A Sliding Doors momentConference (AEGC) in Brisbane at being able, once more, to interact socially and professionally with ones peers in a conference setting? I certainly took every opportunity to resume face-to-face conversations with fellow explorationists and service providers.Someone I always take the opportunity to catch up with at our conferences is Des Fitzgerald; we share both hopes and concerns for the future of exploration geophysics. This time Des had a great story to tell about recent innovations in potential \x1deld processing realised by revisiting aspects from 200 years of mathematical theory. This work really does epitomise innovation through reassessment of previous e\x1eorts.Terry Harvey Associate Editor I invite you to read Des article A Sliding Doors moment. It for Minerals geophysics makes quite a read. I also talked to other geophysical contractors terry.v.harvey@glencore.com.au and consultants who are innovators in their \x1deld, and Ill bring their stories to future issues of Preview. And, if you or your organisation have a story of innovation in geophysics youd like Was it just me, or was there widespread pleasure amongto tell, please get in touch. Wed love to hear it.participants at the recent Australian Exploration Geoscience A Sliding Doors momentAugustin-Louis CauchyDesmond James FitzGerald Intrepid GeophysicsCauchy is most famous for his single-handed development des@intrepid-geophysics.com of complex function theory. The first pivotal theorem proved by Cauchy, now known as Cauchys integral theorem, was the Cauchys integral theory following:200 years ago in Paris, during the enlightenment period, the C f(z)dz = 0,Sun King had been overthrown, Napoleon had transformed the\x1fEuropean world, and a new king was on the throne.where f(z) is a complex-valued holomorphic function on and The Lecole Royale Polytechnique, having passed back under thewithin the non-self-intersecting closed curve C (contour) lying patronage of the king, encouraged the elite to create theoreticalin the complex plane. The contour integral is taken along and practical ideas. Mathematical notation was also evolving atcontour C.this time. Augustin-Louis Cauchy fought for recognition for some of his ground-breaking insights, and published his book FirstThe rudiments of this theorem can already be found in a paper that Part, Analyse Algebrique in 1821. the 24-year-old Cauchy presented to the Acadmie des Sciences JUNE 2023 PREVIEW 32'