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About a Mystery as Old as Time, Part Two
Keywords:
Each month was 30 days.Then, they divided each day into 24 equal parts,or hours.They divided each hour into 60 minutes,and each minute into 60 seconds.Humans have used many devices to measure time.The...
每个月是 30 天。然后,他们将每天分成 24 个相等的部分或小时。他们将每个小时分为 60 分钟,将每分钟分为 60 秒。人类已经使用许多设备来测量时间。日晷是最早和最简单的日晷之一。日晷测量太阳每天在天空中的运动。它有一根棍子或其他物体...
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