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Australia

Subject: History

Australia has been establishing stronger links with Asia—but has been unable to shake off the British monarchy Australia's landmass—which can be viewed as the world's largest ...

acre

acre   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

...[Lat: ‘field’] area . Symbol ac. BI , US-C , Australia , Canada , New Zealand , etc. For land measure (originally the area that could be worked by an animal team in a day) = 4 840 yd 2 (0.404 685∼ ha) = 1 / 640 mi 2 . The area of a chain by a furlong, and of a square with sides of 69.570 11∼ yd (= 22 × yd). See Table 1. Table 1 BI, US-C, Australia, Canada, New Zealand, etc. SI US-C ft 2 272.25 sq. rod … … … 25.3∼ m 2 30.25 yd 2 10 890 40 rood … … 0.101∼ ha 1 210 yd 2 43 560 160 4 acre … 0.405∼ ha 4 840 yd 2 640 sq. mile 259.∼ ha 640...

square

square   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

...area . Britain , North America , Australia For constructional floor area and roofing = 100 ft 2 (9.290 3∼ m 2 ) (expressed for a house in North America it includes all floors except the basement); for carpet etc., = 1 yd 2 . Note that, while used as a preceding adjective for deriving areal expressions from linear units (in an English context), ‘square’ should not be used so for seconds and other non-linear units subject to power-raising; for these the adjective ‘squared’ should be used after the unit, e.g. an acceleration of 3 metres per second...

Saffir–Simpson Hurricane
 Scale

Saffir–Simpson Hurricane Scale   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

...Hurricane Scale [ J. H. Saffir ; USA: R. H. Simpson ; USA] meteorology . USA 1975 a Code for forecasting the characteristics of and damage from an imminent hurricane. Melaragno M. G. Severe Storm Engineering for Structural Design (Australia and Luxembourg: Gordon and Breach, 1996) A synopsis is shown in Table 46 (the surge height to be adjusted to a particular coast, the damage that of the wind alone). Table 46 Category Central pressure Max wind surge damage mbar m.p.h. ft 1 weak ≥ 980 75 to 95 4 to 5 Mostly to trees and loose objects; no...

gallon

gallon   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

...equivalent to but less precise than those above. US-C liq The base unit for volume, = 231 in 3 (identically the British wine gallon of 1706 ) = 3.785 411 784 L (0.832 674 2∼ BI gal). See Table 17(b). US-C dry There is no gallon for dry goods; see bushel . Table 17(a) BI, Australia, Canada, New Zealand, etc., SI US-C liq fl oz … … … … … 28.4∼ mL 0.961∼ oz 5 gill … … … … 142∼ mL 4.80∼ oz 20 4 pint … … … 568∼ mL 1.20∼ pt 40 8 2 quart … … 1.14∼ L 1.20∼ qt 160 32 8 4 gallon … 4.55∼ L 1.20∼ gal 2 peck 9.09∼ L 2.40∼ gal 8 4 bushel 36.4∼ L 9.61∼ gal For downward...

hundredweight

hundredweight   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

...) mass . 112 lb (50.802∼ kg) ( cwt , gross hundredweight , long hundredweight ) in Britain and elsewhere, but 100 lb (45.359∼ kg) (also net hundredweight , short hundredweight ) in North America. See pound for more precise values, and Table 25 for scales. Table 25(a) BI, Australia, New Zealand SI lb … … … … 454.∼ g 14 stone … … … 6.35∼ kg 28 2 quarter … … 12.7∼ kg 112 8 4 hundredweight … 50.8∼ kg 2 240 20 ton 1016.∼ kg For downward extension, see ounce . Table 25(b) US-C, Canada SI lb … … … … 454.∼ g 25 quarter … … 11.3∼ kg 100 4 hundredweight … 45.4∼...

in.

in.   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

...Act respecting Weights and Measures assented to 20 June 1951 then in the UK, the USA, Australia, and New Zealand in 1959 (though in the UK not completely until 1964 ), the international value has the inch an integer multiple of a tenth of the millimetre, hence the foot, yard, etc., likewise. However, through a succession of prototypes it had probably been the same to at least six significant figures for centuries. See Table 26. Table 26 Internat, BI, US-C, Australia, Canada, New Zealand, etc. SI inch … … … … … 25.4 mm 12 foot … … … … 305.∼ mm 36 3...

pound

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A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

...mass . Symbols lb, lb av, lb avdp. Distinctively the pound avoirdupois: Internat, BI, US-C, Australia, Canada, New Zealand, etc., 1959 453.592 37 g, so 1 kg = 2.204 622 62∼ lb. Bigg P. H. Nature 194, 719–21 (1962) Canada 1951 453.592 43 g, so 1 kg = 2.204 622 33∼ lb.Canada: An Act respecting Weights and Measures assented to 20 June 1951 BI 1898 By Order-in-Council it was declared that, on the basis of comparative measurement of the prototype pound and the international prototype kilogram, 1 kg = 2.204 622 3 lb, so 1 lb = 453.592 436∼ g (making the...

grain

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A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004
Subject:
Science and technology, Mathematics and Computer Science, Physics
Length:
413 words
Illustration(s):
1

...millilitre, the tonne (or ‘metric tonne’), kilogram, hectogram, milligram and carat (metric). All had been included in the similar Act of 1963 , but with some variation of name: -gram was -gramme, decare was dekare, the tonne appeared only as metric ton. Internat, BI, US-C, Australia, Canada, New Zealand, etc. , 1959 64.798 91 mg (0.323 994 55 metric carat of 200 mg). prev Within 0.01% of the above for centuries; see pound for details. History The avoirdupois scale ( see ounce and hundredweight ) has a pound of 7 000 grains = 16 oz of 437.5 gr;...

calendar

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A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

...the summer solstice commonly being called ‘Midsummer Day’, the practice in many countries is to regard these dates as the starts of the respective seasons rather than their midpoints. This reflects the delayed effect of the seasonal travels of the Sun, but exaggerated. The Australian practice of regarding seasons as starting with the relevant month, e.g. 1 March instead of 21 March , is much more appropriate.) This new (and still extant) calendar was implemented by the Roman church in October 1582 , with the dates 5 to 14 October that year omitted,...

coal

coal   Quick reference

A Dictionary of Physics (8 ed.)

Reference type:
Subject Reference
Current Version:
2019
Subject:
Science and technology, Physics
Length:
294 words

...during the Carboniferous and Permian periods. More recent periods of coal formation occurred during the early Jurassic and Tertiary periods. Coal deposits occur in all the major continents; the leading producers include the USA, China, Ukraine, Poland, South Africa, India, Australia, and Germany. Coal is used as a fuel and in the chemical industry; by-products include coke and coal...

Physics

Physics: c. 13.7 billion years ago - 2010  

Reference type:
Timeline
Current Version:
2012

...East Asia Japan Rulers and politicians Wars since 1900 1946 1946 The first of about 20 US tests of atomic and hydrogen bombs is carried out on Bikini Atoll, in the Pacific Bikini atoll The Oxford Essential Dictionary of the U.S. Military 1 1940s 20th century Science Weapons Australia and Oceania Pacific Islands 1947 1947 Hungarian-born British engineer Dennis Gabor creates the first three-dimensional image from reflected light, subsequently known as a hologram Gabor, Dennis (1900–1979) Who's Who in the Twentieth Century 1 1940s 20th century Science...

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