Ancient water clocks were divided into two categories: and ?

A simple way to measure time.

Find an incense stick and measure its length with a ruler first. After five minutes of ignition, measure its length; After five minutes, measure again. After measuring it a few times, you will find that:

In the absence of wind, the burning rate of incense is essentially unchanged. Depending on the rate of combustion obtained by the experiment, for example, if 1 centimeter is burned every five minutes, a scale can be engraved every 1 centimeter on the same incense. In this way, it becomes a "ruler" to measure time.

Just look at the length of time the incense has been burned to know how much time has passed.

Using the flow of water, it is also possible to calculate time.

Find an empty wine bottle, fill it with water, and do a handstand to let the water out. Do it several times, and the time for the water to run out is always constant; The first time it takes a few seconds, and the second time it's a few seconds.

Why can flowing water and burning incense be used as a "ruler" to measure time? Because the flow of water and the burning of incense are both a kind of movement, time and movement have a close relationship, and it is only through movement that the elapsed time can be expressed. Therefore, measuring time is inseparable from movement.

Before there was no clock, the ancients were using water and fire to keep time, according to ancient records, more than 2,000 years ago, there was a kind of drip water timing "carving", also called the water clock.

In ancient times, there was a kind of carved leakage, which was mainly composed of several copper kettles, also known as "leaky pots". Except for the bottommost one, each pot has a small eye at the bottom. The water dripped from the highest pot through the lower pots to the lowest pots, dripping finely and evenly.

In the lowest pot there is a bronze man, holding a wooden arrow that can float, and when there is more water in the pot, the wooden arrow floats, and according to the scale on it, you can know the time.

Combustion timers also have a long history. In ancient China, there was a kind of "fire alarm clock": put the incense in a boat-shaped trough, and at a certain point of the incense, tie two copper bells with a thin thread, and hang it horizontally on the small "dragon boat" where the incense is released.

The incense is lit from one end, burned to the place where the thin thread is tied and the thread is burned, and the two brass bells fall on the metal plate below, and when people hear the sound, they know that the predetermined time has come.

Nowadays, people still use "fire bells": the various fuses that cause explosives are fire bells, and the time from ignition to ** is determined by the length of the fuse.

The sun rises in the east and sets in the west, telling us that the earth is constantly turning. It is also a relatively stable exercise. Since ancient times, people have also used this movement to measure time.

People made the sundial guǐ, a "sun clock" that uses the movement of the sun's shadow to indicate the time. However, on cloudy days and nights, the sun clock does not work.

Classification of water clocksThe water clock is also known as the carved leak and the leaky pot in China. According to the principle of isochronousness, there are two ways to record the time of dripping, one is to use a special container to record the time of water leakage, also known as the discharge type; The other is a container with no opening at the bottom, which records how much time it takes to fill the water, also known as the water receiving type. The Chinese water clock was first a drain type, and later the drain type and the noisy digging trapped water type were used at the same time or both.

Introduction to the water clockThe water clock was the standard way to tell the time throughout the ancient world, and it was introduced to China in the 6th century BC. The operation of this scatter bell is controlled by a buoy, which also sinks little by little as the water slowly flows out from a small outlet at the bottom. The buoy is presumably connected to a round pole.

The rod moves the handle as it sinks. The degree of wear and tear of the steps leading to the well indicates that the cistern is filled with water every day.

1. Ancient water clocks can be divided into two kinds, namely, the drainage type water clock, which uses a special container to record the time when the water is leaked; and containers with no opening at the bottom.

2. The water clock is also called "carved leakage" in China.

Dan is bored, "leaking the Ling pot."

According to the principle of isochronousness, there are two ways to record the time of dripping water (drain type) using a special container, and the other is to record how much time it takes to fill the water with a container with no opening at the bottom (water receiving type).

3. China's water clock, first of all, is the drain type, and later the drain type and the water receiving type are used at the same time or both in one. Since around 85 A.D., water-receiving leaky pots equipped with leaky arrows on floats have gradually become popular, and even used everywhere.

Water clock slag is divided into water discharge type and water receiving type. According to the principle of isochronism, there are two ways to use a special container to record the time when the water is leaked, and the other is a container with no opening at the bottom, recording how much time it takes to fill the water. For example, Sun Hengguo's water clock is first a drain type, and then a drain type and a water receiving type are used at the same time or both are combined.

Water clocks are divided into drain type and water receiving type. According to the principle of isochronism, there are two methods, one is to use a special container to record the time of the water leakage, and the other is a container with no opening at the bottom, recording how much time it takes to fill the water. China's water clock is first a drain type, and then a discharge type and a water receiving type are used at the same time or both.

Mechanical water clock.

And what what water clock.

Usually the discharge type and the water receiving type in the water.