Troy weight g, 12 oz t), while an avoirdupois pound is approximately 21.53% heavier at 7 000 grains (≈ 453.59 g). One troy ounce (oz t) is equal to grams. Also equal to avoirdupois ounces, exactly , or about 10% larger. The pennyweight symbol is "dwt". There are 24 grains in 1 dwt, and 20 dwt in one troy ounce. Because there were 12 troy ounces in the old troy pound, there would have been 240 pennyweights to the pound—the basis of the fact that the old British pound sterling of currency contained 240 pence. (However, prior to 1526, English pound sterling
Five Grains Five Grains The Five Grains or Cereals (Chinese: , , "Wǔ Gǔ") are a grouping (or set of groupings) of five farmed crops that were all important in ancient China. Sometimes the crops themselves were regarded as sacred; other times, their cultivation was regarded as a sacred boon from a mythological or supernatural source. More generally, "wǔgǔ" can be employed in Chinese as a synecdoche referring to "all" grains or staple crops of which the end produce is of a granular nature. The identity of the five grains has varied over time, with different authors identifying different grains or even