The flow of water from bottom to top is a siphon phenomenon and a capillary phenomenon. When the water pressure at the bottom is greater than that at the top, the water flows to the top and is squeezed. When the machine works, water flows out. up. The siphon uses the force phenomenon of the liquid level difference. After filling an inverted U-shaped tubular structure with liquid, insert the two ends into two containers with different liquid level heights. Then the liquid in the container will continue to pass through the siphon tube. Pour into liquid at low level.
The liquid surface is similar to a stretched rubber membrane. If the liquid surface is curved, it will tend to flatten. Therefore, the concave liquid surface exerts a pulling force on the liquid below, and the convex liquid surface exerts pressure on the liquid below. The liquid surface of the liquidide wetting in the capillary is concave, which exerts a pulling force on the liquid below, causing the liquid to rise up the wall of the tube when the upward pulling force equals the gravity of the column of liquid in the tube. , the liquid in the tube stops rising. The same analysis can also explain the phenomenon of non-wetting liquids falling into capillaries.
It is said that there is a stream in Taiwan with water flowing upwards. Where is he ?
Water can flow to higher places. People often say, "When people go to higher places, water flows to lower places." » However, there are countless examples of water flowing to higher places. We can't move the water. to higher places Considered nonsense that goes against science.
The direction in which water flows depends on the direction of theforce exerted on the water. It is common for water on the ground to flow downward due to the Earth's pull towards it - gravity. But if the force on the water is not only downward gravity but also upward force, and the combined effect of these two forces is upward, then the water will flow into the direction of the combined force. For example, water from a water pump may flow upward at high tide;
Without an external force other than gravity, water cannot flow upward
“Water flows upward” is a small famous attraction in Taiwan. It is located near the fishing spot. bridge in Dulan village, Donghe township, Taitung county. The specific location is on Provincial Road 11 towards Taitung 152K, turn right about 50 meters from the roadside. "Can the water here actually flow upward?" Doesn't this defy Newton's gravity? » By nameMany tourists will ask themselves this question. No wonder this attraction, although not large, attracts many curious tourists all year round to explore and discover!
At first glance, the water flow actually flows from bottom to top. However, attentive travelers will find after careful observation that the landscape on both sides of the place is steeper than the road surface, which creates the illusion of water flowing upward. Basically, the principle of this attraction is very simple, and it is not a spectacle that violates scientific principles: the road next to the ditch is downhill, but the ditch is not downhill, but uphill with a very small slope, So when tourists stand in a low place and look at it along the road, it looks like water flowing upwards. This kind of visual difference is truly incredible.
In fact, this place was originally a small ditchordinary, but because of thisOnly a “wonder” can stand out, which is why it attracts many admiring tourists who come to see it in person. In addition, the area near “The Water Flows Upward” is a natural recreation spot with beautiful scenery. The air is fresh and pleasant, full of pure nature. If you come here for the scenery of "water flowing upward", don't miss the scenery nearby!
If you travel to Taiwan, you can go here to see it in person and witness the magic of “water flowing upward” with your own eyes!