Editor’s desk

Editor’s desk

‘not go gentle into that good night’. is he? You will have to read Roger’s She loved life, she loved people (she article to find out! was teaching art until she had her first fall just before her 90th birthday) and David Denham (Canberra observed) raged against injustice up until the day brings us up to speed on the outcomes before she died. She was one of many of the Federal Budget, as well as taking Australians redefining old age. And there a considered look at the Resources 2030 are many geophysicists doing the same. Taskforce, the new maritime boundary They still have fire in their bellies and between Australia and East Timor and are the mainstays of organisations like the lifting of the moratorium on fracking the ASEG, as well as the light on the hill in the Northern Territory. Michael Asten for those of us who can now see that an (Education matters) introduces us to the active working life does not need end at SEG lecturers visiting Australia in July 60 or 65. Pffff…more like 90 or 95… and August. Mike Hatch (Environmental geophysics) gets Esben Auken and the This issue of Preview features the Aarhus team to tell us something about Australian students who took out first their new towed geophysical transient and third place in the novice section Firstly, I must apologise for the delay in electromagnetic system for near-surface of the inaugural Frank Arnott Award publication of this June 2018 edition of mapping. Terry Harvey (Minerals (FAA). The inaugural FAA was an Preview. To paraphrase John Lennon, life geophysics) muses about management outstanding success. The very positive is what happens when you are making styles appropriate for exploration. feedback received from participants other plans. As many of you will know, Mick Micenko (Seismic window) takes and from delegates to Exploration ’17 I returned to far north Queensland some a look at full waveform inversion of has encouraged the FAA organising years ago in order to be able to take a seismic data at the request of a reader committee to look at ways of continuing more active role in the care of some of before having a bit of a spray about the the award, particularly as part of a my elderly relatives. They are a feisty lot misuse of statistics, and Dave Annetts mineral exploration education program and, needless to say, gave me as good as (Webwaves) fills us in on the new data for postgraduate students and junior they got. Unfortunately the eldest, and protection laws. geophysicists. most outrageous of my aunts, become Plenty to get your teeth into so, enjoy! very ill in the first week of May. She This issue also features an article by needed me and I nursed her round the Roger Henderson that reviews the Lisa Worrall clock until she died a couple of weeks claim Broughton Edge is the father of Preview Editor later. As I said at her funeral, she did Australian exploration geophysics. Well [email protected]

SI units in geophysics that are named after scientists Cambridge in 1925. His idol, Ernest Rutherford, was a member of the same class. This brilliance gained him a position in Many of the SI units used in geophysics are named after the ‘holy-of-holies’ of British natural science, the Cavendish famous scientists; such as Ohm, Siemens, Hertz and Tesla. Laboratory, in the company of Nobel prize winners Thomson Wikipedia provides a complete list of all scientists whose and Chadwick. His PhD dissertation was on the absorption of names are used as SI units (https://en.wikipedia.org/wiki/ hard gamma rays, and was supervised by Chadwick. List_of_scientists_whose_names_are_used_as_SI_units). There 29 SI units and 19 use the names of scientists, all of these are Gray wanted to put his knowledge into practice, and developed used in geophysics. an interest in methods of treating cancer with ionizing radiation in the new field of radiobiology, which measures the effects Of the list, Andre-Marie Ampere (1775–1836), whose name of radiation on biological systems. He was based at the Mount is the unit for electric current, is the earliest born. The latest Vernon Hospital in Middlesex for seven years and gathered an born and last on the list is Louis Harold Gray (1905–1965), immense amount of data for the development of radiotherapy. an English physicist whose name is the unit for absorbed dose After WW2 and a short spell at London’s Hammersmith of radiation; the Gray. Hospital, he returned to the institute in Middlesex that now The Gray (Gy), first named in 1974, is used in the bears his name; the Gray Laboratory of the Cancer Research measurement of radiation exposure (strictly the dose of Campaign. radiation energy absorbed by material of mass 1 kg when Later, the British Institute of Radiology elected the now exposed to ionizing radiation bearing one joule, J of energy. Professor Gray as their President. He also became a Fellow of 1 Gy = 1 J/kg). The corresponding cgs unit, still commonly the Royal Society, and was awarded the Roentgen Prize and used in the USA, is the ‘rad’, equivalent to 0.010 Gy. the Faraday Medal. He died in 1965, when he was only sixty As Gray was the last scientist to have his name applied to a years old, of a stroke brought on by overwork. unit of measurement, many of us may know very little about Roger Henderson him. ‘Hal’ Gray came top of his class at Trinity College, [email protected]

2 PREVIEW JUNE 2018