b'Geophysics in the surveysNewsthat add immense value to an already(inprep) and will be available from www. Referencerich geological dataset compiled acrossearthresources.vic.gov.au and from this region by generations of geologists. the Geological Survey of New SouthCayley, R.A., Fomin, T., Musgrave, R.J., Wales DIGS catalogue: https://www. et al. In Prep. Preliminary geological The processed deep crustal seismicresourcesandgeoscience.nsw.gov.au/ interpretation of deep 2D seismic reflection reflection data are available fromminers-and-explorers/geoscience- survey lines 18GA-SL1, 18GA-SL2 and Geoscience Australia as L208 Southeastinformation/services/online-services/digs 18GA-SL3 undertaken as part of the Lachlan Seismic Survey 2018. A reportSoutheast Lachlan Crustal Transect. describing the results of the preliminarySuzanne HaydonGeological Survey of Victoria, Geological interpretation is being published byGeological Survey of VictoriaSurvey of New South Wales.the project partners as Cayley et al.Suzanne.Haydon@ecodev.vic.gov.auHenderson byte: Michael FaradayThe SI unit of capacitance, the farad (F), is named in honour of Michael Faraday (17911867) who was born and brought up in poor circumstances on the streets of London. He received no formal education beyond age 12, which left him with almost no knowledge of mathematics. However, he taught himself science by reading the books that it was his job to bind as an apprentice bookbinder. By chance, in 1813, he became assistant to Sir Humphry Davy at the Royal Institution in London, where he stayed for the rest of his career. He was to become one of the most influential scientists in history, particularly renowned for his many well-designed experiments that served to illustrate his (non-mathematical) reasoning. In addition, he gave a series of memorable public lectures, explaining the wonders of science to his audiences.Faraday built the first electric motor by showing that the free end of a rod-like magnet rotated around a current-carrying wire. He also demonstrated the converse, showing that the free end of a current-carrying wire rotated around the pole of a magnet.He discovered mutual induction when he wrapped two electrically separate coils of wire around an iron ring and found that upon passing a current through one coil, a current was induced in the other coil. By varying the number of turns in each coil he developed the essentials of a transformer.The relationship Faraday established, that a changing magnetic field produces an electric field, was later modelled mathematically by James Clerk Maxwell as Faradays law, which subsequently became one of Maxwells four equations of electromagnetism.In a presentation to the Royal Society in November 1831 Faraday also described the first working dynamo, a subject later vital to understanding the cause of the Earths magnetism.In his work on static electricity Faraday demonstrated that the charge resided only on the exterior of a charged conductor, and that exterior charge had noinfluence on anything enclosed within a conductor. This shielding effect is used in what is now known as aFaraday cage.Thus, Faradays experiments that showed the inter-relationship between magnetics and electricity, resulted in the invention of the electric motor, the transformer, and the electric dynamo or generator.Roger Henderson rogah@tpg.com.auOCTOBER 2019 PREVIEW 20'