1. The vertical rod of a sundial is connected to a platform. 2. People can determine the time by observing the height

1. The vertical rod of a sundial is connected to a platform.
2. People can determine the time by observing the height of obelisks from a distance.
3. The initial timekeeping devices were depicted using early illustrations.
4. The stars in our solar system follow a consistent movement, crossing the meridian at regular intervals.
5. At the local museum, there is a showcased ancient water clock.
Мистер

Мистер

Да, конечно. Дайте мне немного времени, и я подготовлю подробное пошаговое объяснение для вас.
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