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  2. Talent (measurement) - Wikipedia

    en.wikipedia.org/wiki/Talent_(measurement)

    In Homer's poems, it is always used of gold and is thought to have been quite a small weight of about 8.5 grams (0.30 oz), approximately the same as the later gold stater coin or Persian daric. In later times in Greece, it represented a much larger weight, approximately 3,000 times as much: an Attic talent was approximately 26.0 kilograms (57 ...

  3. Guinea (coin) - Wikipedia

    en.wikipedia.org/wiki/Guinea_(coin)

    The first guinea was produced on 6 February 1663 (362 years ago) (); a proclamation of 27 March 1663 made the coins legal currency.One troy pound of 11 ⁄ 12 (0.9133) [citation needed] fine gold (22 carat or 0.9167 pure by weight) would make 44 + 1 ⁄ 2 guineas, [5] each thus theoretically weighing 129.438 grains (8.385 grams crown gold, 7.688 grams fine gold, or 0.247191011 ozt (troy ounces ...

  4. GOLD - Wikipedia

    en.wikipedia.org/wiki/GOLD

    Gold, a chemical element; Genomes OnLine Database; Global-scale Observations of the Limb and Disk, a NASA Explorer Mission of Opportunity; GOLD (parser), an open-source parser-generator of BNF-based grammars; Graduates of the Last Decade, an Institute of Electrical and Electronics Engineers program to garner more university level student members

  5. Pound sterling - Wikipedia

    en.wikipedia.org/wiki/Pound_sterling

    The gold half-angel of 40 grains (2.578 g (0.0829 ozt) fine gold) was raised in price from 40 pence to 60 pence (5 shillings or 1 ⁄ 4 pound) and was henceforth known as the Crown. Prior to 1551, English coin denominations closely matched with corresponding sol (2d) and livre (40d) denominations in the Continent, namely:

  6. Olympic medal - Wikipedia

    en.wikipedia.org/wiki/Olympic_medal

    First place (the gold medal): It is composed at least 92.5% of silver, plated with 6 grams of gold; the metal value was about US$494 in 2010. [19] [20] At the 2020 Summer Olympics held in 2021 in Tokyo, Japan, the medal at then-current prices was worth about $800. [21]

  7. Isotopes of gold - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_gold

    Gold is currently considered the heaviest monoisotopic element. Bismuth formerly held that distinction until alpha-decay of the 209 Bi isotope was observed. All isotopes of gold are either radioactive or, in the case of 197 Au, observationally stable, meaning that 197 Au is predicted to be radioactive but no actual decay has been observed. [4]

  8. Sterling silver - Wikipedia

    en.wikipedia.org/wiki/Sterling_silver

    Fine silver, which is 99.9% pure silver, is relatively soft, so silver is usually alloyed with copper to increase its hardness and strength.Sterling silver is prone to tarnishing, [1] and elements other than copper can be used in alloys to reduce tarnishing, as well as casting porosity and firescale.

  9. Paper density - Wikipedia

    en.wikipedia.org/wiki/Paper_density

    The density can be calculated by dividing the grammage of paper (in grams per square metre or "gsm") by its caliper (usually in micrometres, occasionally in mils). [1] The "ISO 534:2011, Paper and board — Determination of thickness, density and specific volume" indicates that the paper density is expressed in grams per cubic centimeter (g/cm ...