Chinese Quiz
In A.D. 130, Zhang Heng, an astronomer and literary scholar, invented the first instrument for monitoring :
Zhang Heng invented the world's first seismometer, which discerned the cardinal direction of an earthquake 500 km (310 mi) away.
Holy cow! You're fantastic! Go here!
09
00
00
In A.D. 130, Zhang Heng, an astronomer and literary scholar, invented the first instrument for monitoring :
516 of 723 people (71.37%) answered
this question correctly.
0 of 43 questions completed