In the longest day in Chang 'an, there were no clocks. How did the ancients keep time?

Ancient machines had no batteries, nor did they have our current clocks. How did the ancients time? In this TV series, the restoration of ancient life is still very high. Don't forget some details when the audience enjoys a more exciting story. In this TV series, the way to record events is mainly through the sundial, which was widely used in China since the Zhou Dynasty.

Because the positions of the sun and the earth are constantly changing, the shadow cast by the sun is also constantly changing, and the change of the shadow corresponds to different times. This is the way people look at time. This instrument looks simple, but its design is complicated. There are both heavenly stems and earthly branches and twelve o'clock in it. The first contact, you must be completely ignorant.

There are many kinds of sundials, some of which can also express solar terms, such as the vernal equinox and the autumnal equinox, which are more important days. The TV series performed well on the timing tool used by the ancients. Related scenes appeared in the seventh and ninth episodes. Most sundials are made of stones, which are heavy and difficult to move, and are usually placed outdoors.

In order to show respect for identity, it will also be placed at the entrance of the palace, and the Forbidden City has this thing. There are other timing tools in TV series, such as fire alarm clock, which is actually the incense we see in TV series. Merchants will make different lengths of incense according to different needs. The longest incense is coil incense, which looks a bit like a huge version of mosquito-repellent incense. The longest burning time can reach 30 days, and I have to admire the wisdom of the ancients. There are also timekeeping tools such as clepsydra to calculate the time more accurately.