The emperor of the ming dynasty, zhu yuan dynasty, asked for a day's feast, when he came out with a cup of porcelain wine, and said, "you will fight with me in the north, and you will have all the best in your hearts. Today, you will drink with this cup of credit." when xu da-chul came to be greedy, two came from a high-profile manner, so he filled the cup with chinese wine. Who knows when he had taken up the cup, then the glass leaked. And the rest of them drink not but with wine, and they are incomprehensible. Zhu won smiled and said, "it's like, "it's full of shame and modesty."
This amazing cup is called the kowloon cup, and once it's filled with wine, it leaks through the center of the dragon. And that's what we're going to say today."Iris sucking principlesI'm sorry。
A simple example of how pressure is calculated in a liquid and how pressure is transmitted in a liquid is to be seen:
This is a container with water, assuming an atmospheric pressure of p0, calculated the pressure of points a, b and c along the road shown by the red arrow in the chart。
Known by liquid pressure formula, point a pressure
Point b is horizontal with point a, so..
C's above b, so..
Here's the writing too,
But in order to explain the problem, we used the previous formulation:
It can be seen that the transfer of pressure along a path in a liquid depends on the horizontal position of the subject, which is why divers feel high pressure and have difficulty breathing in deep water。
With these foundations, we're going to look at a classic iris principle:
As the figure shows, two water cups, one filled with water and the other empty, are connected by one of the u tubes, which varies from one side to the other, and a short one is inserted into the bottom of the glass, while the other side is empty。
Draw water out of the u tubes with your mouth, so that the u pipes are filled with water and reach the position below:
Take the upper point of the u-pipe and compare the pressure on both sides of it
We can tell by way of example
The pressure on the left p left is passed to it by the water from the glass on the left
So, according to the height of the top of the cup
Likewise, the pressure on the right is
Apparently, hp
The water on the left side of the u pipe will continue to flow automatically to the right side, with the magic of water flowing up。
It is important to note that in order to clean up the water in the left cup, it is necessary to ensure that the liquid surface in the right cup does not exceed the height on the left of the u-type tube, i. E. H>0 in the figure below。
After understanding the rationale behind the phenomenon of iris
Go back to the kowloon cup
The structure is probably as follows:
You don't think seo-da is innocent
Happiness is a virtue
Except for the kowloon cup mentioned hereDaily lifeIt's very common. For example, rainbow-sucking toilets can significantly increase drainage efficiency and reduce congestion。
Can you see how it works now
For example, we can change the fish tank for water
Saved a spoon of water to the outside world
As you can see, a simple rainbow-sniffing effect is often ably applied in life, with which humans can be tested, where water can flow up, where your toilet can be free from jamming, where fish can be replaced with water
