1. 1 Measurement technology: background and development UThe field of measurement was enlarged continuously, and the means and methods for measurements became more sophisticated >Elle, created by the egyptians in about 3000 B C a unified standard of length Defined as the length of the forearm of the pharao measured from his elbow to the tip of his stretched middle finger plus the width of a palm twig in his hand Realized with a black granite as the primary standard Emperor Qin Shi established a unified system of weights and measures and gave severe punishments to those who violated the system❑The field of measurement was enlarged continuously, and the means and methods for measurements became more sophisticated: ➢Elle, created by the Egyptians in about 3000 B.C. ▪ A unified standard of length. ▪ Defined as the length of the forearm of the Pharao measured from his elbow to the tip of his stretched middle finger plus the width of a palm twig in his hand. ▪ Realized with a black granite as the primary standard. ➢Emperor Qin Shi established a unified system of weights and measures and gave severe punishments to those who violated the system. 1.1 Measurement technology: background and development