How to do the water receiving water clock, please tell me what is the difference between the water r

Double pot drain type or water receiving type water clock.

a. Find two beverage bottles, cut off the bottom of one bottle, cut off the upper part of the other bottle, drill a small hole in the bottle cap, the size of the hole is determined by the size of the container or the number of timing, and the small hole is drilled and assembled, that is, a water clock.

When making the scale, the water surface descends every minute, and the scale is engraved on the upper container for the water discharge type water clock; The water surface rises every minute, and the scale is engraved on the lower container, which is a water-receiving water clock.

B, in the production process, found that the mouth of the existing bottle is larger, the mouth of some bottles is smaller, the mouth of the larger bottle can just cover the mouth of the smaller bottle, then only cut off the bottom of the smaller bottle, drill a small hole in the cap of the small bottle, and then put the two bottle mouths together, so that they can fit well, that is, a water clock.

1. The simplest single-pot drain water clock.

Cut off the bottom of a beverage bottle and drill a small hole in the cap, the size of the hole is determined by the size of the container or the amount of timing, and the hole is slightly larger when the container has a large capacity and less timing. On the contrary, the hole should be drilled smaller. This is the world's first water clock.

Before the experiment, pour water full, and hold down the water outlet hole, draw a starting scale at the water surface, open the hole and start to leak, and then draw a scale at the position where the water flows out of the water surface and descends every minute, and the water clock is done to divide the time (as shown below).

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2. Double pot drain type or water receiving type water clock.

a. According to the method on the textbook, cut off the bottom of a bottle, cut off the upper part of another bottle, drill a small hole in the bottle cap, the size of the hole is determined by the size of the container or the number of timing, and the small hole is assembled after drilling, that is, a water clock.

When making the scale, the water surface descends every minute, and the scale is engraved on the upper container for the water discharge type water clock; When the water level rises every minute, the scale engraved on the lower container is a drain type water clock (as shown below).

B. In the production process, the mouth of the existing bottle is found to be larger, and the mouth of some bottles is smaller, and the mouth of the larger bottle can just cover the mouth of the smaller bottle, so only the bottom of the smaller bottle is cut off, and a small hole is drilled in the cap of the small bottle, and then the two bottle mouths are set together, so that they can fit well, that is, a water clock (as shown below).

I don't know if the teacher has forgotten it.

This one is more difficult, forgot.

Water Receiving Water Clock: The water receiving water is injected into the water receiving kettle from the leaky kettle at a constant flow, and the leaky arrow floating on the water surface of the receiving kettle indicates the time with the rise of the water surface, which improves the timing accuracy compared with the draining water clock.

Drain type water clock: Drain type water clock is to drain water from the bottom side of the leaky pot, so that the leaky arrow floating on the water surface of the leaky pot falls with the water surface, and the scale on the leaky arrow indicates the time.

The water clock is also called "carved leak" and "leaky pot" in China. 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).

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

Ancient clocks are divided into two types: water-receiving water clocks and water-discharging sunbaths. In the water-receiving type water clock, the water droplets are lowered into the cylinder at a fixed speed, so that they float. The amount of water supplied increases and gradually increases, indicating the time of loss, and in the container of the redrain type water clock, the water level drops as the water flows out, and it is possible to measure how much time has passed.

The working principle of the water clock: the principle of isochronism. Principle of isochronism:

Find an empty wine bottle, fill it with water, and then turn it upside down and let the water flow 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. This is the principle of isochronism.

There are two types of water clocks made according to the principle of temporality: one is to use a special container to record the time when the water is drained (discharge type); The other is a container with no opening at the bottom, and record how much time it takes to fill the water (water receiving type).

Earliest to appear. According to the epitaph of the Egyptian courtier Amenemhat.

It is recorded that this man invented the water clock, a "leaky pot," around 1500 B.C.

The water surface in the container drops as the water flows out, and how much time has elapsed can be measured. This type of clock was especially useful for priests, who needed to know the time at night so as not to miss the time of worship and ritual worship in the temple.

1. Clean the outer packaging of a plastic bottle and cut the plastic bottle in half, as shown in the figure below.

2. Use scissors to poke a hole in the bottle cap, as shown in the picture below.

3. Plug the hole in the lid with your hands, and then fill it with water, as shown in the picture below.

4. Then put the section with the lid into the section of the beautiful lid, as shown in the figure below.

5. Draw a scale on the bottle body, and the water clock is ready.

Preparation materials Tools: two mineral water bottles, plastic gun, drill, straw, scissors, coloring, marker, rubber tube.

Steps. First, use a plastic gun to melt the plastic to glue the two bottles seamlessly. See the image below:

Steps. 2. Remove the cap of the bonded mineral water bottle and punch it with a drill. See the image below:

Steps. 3. The size of the hole is similar to the size of a straw. See the image below:

Steps. 4. Use scissors to cut the straw into two sections. See the image below:

Steps. 5. Insert the straw into the two small holes. Pay attention to the length of one end and the short end of the other, and use a plastic gun to seal the gap between the holes on both sides. See the image below:

Steps. 6. Add water to a mineral water bottle and add the pigment. See the image below:

Steps. 9. Time the second time, and use a marker pen to draw the water mark on the water bottle every second until the leakage is exhausted. See the image below:

Steps. 10. Draw a scale, mark the time, and then use the same timing method to mark another bottle with the scale and time. In the end, the water clock was completely successful. See the image below:

2. Remove the lid of the bonded mineral water bottle and punch it with a drill.

3. Make two holes similar to the size of a suction tube, and then use scissors to cut the straw into two long and short sections.

4. Stuff the two straws into two small holes, one end is long and the other end is short, and use a plastic gun to seal the gaps between the holes on both sides.

5. Add water to a mineral water bottle and add pigments.

The constellations are calculated according to the date of birth of the solar calendar, so let's take a look at what the twelve zodiac signs have:

1. Aries (March 21 - April 19).

The difference between a drain type water clock and a water receiving type water clock is that the principle is different and the accuracy is also different.

1. The principle is different.

The water collector water clock is to inject water from the leaky kettle with a constant flow rate, and the leaky arrow floating on the water surface of the kettle rises with the water surface to indicate the time, and the drain type water clock is to flow water from the bottom side of the leaky kettle, so that the leaky arrow floating on the water surface of the leaky kettle falls with the water surface, and the time is indicated by the scale on the leaky arrow.

2. The accuracy is different.

The accuracy of the water-type water clock is affected by whether the water droplets are uniform and stable, and the accuracy can be improved by adjusting the water level in the funnel and the size of the drip aperture, so the accuracy of the water-type water clock is higher than that of the drain type water clock.

Several of the world's most famous water clocks.

1. Tower of the Wind.

The Greek world also had more elaborate water clocks, the "Tower of Winds" in Athens was built by the astronomer Andronica in the early 1st century BC, with multiple suns on top and a complex water clock inside, the time was displayed on a dial, and the disk around the dial showed the movement of the stars and the trajectory of the sun in the constellations during the year.

2. Instrument platform.

China has made outstanding contributions to the development of water clocks in ancient times, and the most famous example is the "Water Transport Instrument Elephant Table" designed and manufactured by Su Song in the early years of the Northern Song Dynasty (about 1086 AD). Designed by astronomer Su Song in accordance with the edict of Emperor Yingzong of the Song Dynasty and built in 1090 AD, the "Water Transport Instrument Elephant Platform" can be regarded as the pinnacle of Chinese clocks in the Middle Ages. <>