Philipp von Jolly invented the modern weighing scale in 1874.
once upon of the time
Weighing scale is called "秤" (chéng) in Chinese.
The name of the creator of the first weighing scale is lost in antiquity. The most ancient relics of a weighing scale date back to around 2,000 B.C.
CT is the abreviation for carats. This weighing unit is used for weighing diamonds and other gemstones.