Ian McDougall – författare
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4 produkter
4 produkter
Inbunden, Engelska, 1999
1 715 kr
Skickas inom 5-8 vardagar
As in the original edition of 1988, this book covers the principles and practice of argon isotopic dating, a technique that has been used to determine the numerical age of the Earth. The greater precision of the 40Ar/39Ar method allows scientists to test smaller geological samples than its precursor, the K-Ar method, which required a comparison of different elements. The new edition will incorporate new developments made in 40Ar/39Ar application over the last decade, made possible by advances in lasers and mass spectrometry.
Häftad, Engelska, 2010
593 kr
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Häftad, Engelska, 2014
669 kr
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E-bok
Engelska, 2021171 kr
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Dairying is practically unique among modern industries in being able to trace its origins back to Biblical times. Even with automatic robot milking systems and sophisticated micro-filtration producing the key components of health and fitness supplements, the value of this essential family nutrient and foodstuff has been cherished over many centuries. Dairying in the province of Ulster has a long and distinguished history, the subject of The Origins of the Dairy Industry in Ulster.