Comparison of the imperial and US customary measurement systems metre, as 1852 metres. Traditionally, both Britain and the US used three different weight systems: troy weight for precious metals, avoirdupois weight for most other purposes and apothecaries' weight for medicines. However, apothecaries' weight has now been superseded by the metric system. One important difference is the widespread use in Britain of the stone of 14 pounds () for body weight. This unit is not used in the United States, although its influence was seen in the practice, until World War II, of selling flour by a barrel of 196 pounds (14 stone). Another difference arose when Britain abolished the
Precious (Boukenger) with the power to resurrect the dead and imbue them with limitless power. The last surviving Jyaryu obtained the Precious and used it to revive Ryuoon, with the Gokaigers taking the item and giving it to Satoru. Precious (Boukenger) Towards the end of "GoGo Sentai Boukenger", all of the Precious that had been collected are destroyed in an attack on the S.G.S. Foundation headquarters. It is also revealed that the Precious are created from the power of the hopes and dreams of the human race. As the organs of the God's Destruction God Goodomu, they functioned as power sources for