Why Straws Can Suck Up Liquids 5

Because when people inhale, they rely on the expansion of the human lungs to reduce the air pressure in the body, so the atmospheric pressure outside will press the gas into the body! When using a straw, the expansion of the lungs and the external atmospheric pressure will press the liquid into the body to balance the internal and external air pressure!

Because when people inhale, they rely on the expansion of the human lungs to reduce the air pressure in the body, so the atmospheric pressure outside will press the gas into the body! When using a straw, the expansion of the lungs and the external atmospheric pressure will press the liquid into the body to balance the internal and external air pressure!

You suck the air from the straw so that the air pressure in the straw is lower than the atmospheric pressure, so the liquid comes to your mouth at atmospheric pressure.

If your mouth is more than 10 meters perpendicular to the liquid, then the atmospheric pressure is not enough to deliver the liquid to your mouth, and you can't suck the liquid at this point.

This is not the action of the straw, but the effect of atmospheric pressure.

You have already emptied the air in your mouth before you inhale, so that the air pressure in your mouth is lower than that outside. So atmospheric pressure is the liquid in the cup or bottle that presses into your mouth.

The mouth is designed to have less air pressure than the outside by enlarging the space inside.

This problem is indeed related to atmospheric pressure: when you inhale, you suck out the gas in the straw, so that the pressure inside the straw is less than the outside atmospheric pressure, creating a pressure difference, so the liquid is pressed into the straw by atmospheric pressure

At the same time, the pressure in the straw is reduced, because the outside atmospheric pressure will press the liquid into the straw, and the atmospheric pressure is also limited, for example, pumping water from the well, if the pump is ten meters high above the water level, it will not come up. These are covered in the textbook, and if you learn it, be sure to take a good look at it.

The gas in the mouth decreases due to breathing, and the air pressure decreases. The liquid is pressed into the straw under atmospheric pressure and enters the mouth.

When using a straw, inhale, the gas flow rate increases, the pressure in the tube decreases, and the outside atmospheric pressure is greater than the air pressure in the tube, and the liquid is sucked up!

When using a straw, inhale, the gas flow rate increases, the internal air pressure decreases, and the outside atmospheric pressure is greater than the internal air pressure, acting on the liquid surface, you can play like a liquid.

It's easy! It is a vacuum principle, when your mouth absorbs water, you first have to swallow the air in your mouth into your stomach or lungs, and a vacuum state is formed in your mouth. Then the water will follow the straw up to your mouth! `

When you inhale, the atmospheric pressure in the body decreases, and the air pressure in the bottle is greater than the air pressure in the body, so the liquid is pressed into the mouth through a straw and into the body.

It's not about inhaling liquids.

Because when the mouth inhales, the air pressure inside the tube is less than the air pressure outside the gate, so the air outside the tube pushes the liquid into the pipe, and the air pressure inside and outside the embassy balances.

Is it detailed enough???

Straw: The air pressure above the straw decreases the atmospheric pressure and presses the water up.

This is because of atmospheric pressure. Atmospheric pressure is the pressure generated by the impact of air molecules on the earth's surface, which is covered with a thick layer of air.

It can also be thought of as atmospheric pressure as the pressure that an object in the atmosphere is exerted on an object by the gravity of the atmosphere itself.

CausesThe atmospheric pressure is created as a result of the gravitational pull of the Earth, due to which the atmosphere is "sucked" towards the Earth, thus creating pressure, which is greatest near the ground. In meteorological science, air pressure refers to the weight of the atmospheric column (atmospheric pressure) per unit area, that is, the pressure exerted by the atmospheric column per unit area.

The above content reference: Encyclopedia - Atmospheric pressure.

It's because of atmospheric pressure.

<> straw uses the principle of atmospheric pressure, and when used, part of the air is sucked away from the straw, which will cause the pressure in the pipe to become smaller, and in order to balance the air pressure, the atmospheric pressure will force the liquid in the pipe to rise. When you stop inhaling, the liquid in the tube drops and the pressure returns to equilibrium.

A straw or straw is a cylindrical, hollow plastic product, whose main function is to drink the drink in a cup, and also used to suck the bone marrow of some cooked animal bones. Generally, the diameter is about the same, but when it is used to smoke drinks such as yogurt and bubble tea, a thicker straw is used, and some have a diameter. Some, less common, very small diameter straws are used to drink hot beverages.

Speaking of straws, I think everyone must be familiar with them, and we will often use them in our lives through car rental buckets. While drinking water through a straw, have you ever thought about how the straw sucks the water up? When we drink water with a straw, when we suck in the mouth, we suck out the air in the straw, which causes the air pressure in the straw to be smaller than the air pressure outside the straw, and then the air pressure outside the straw will press the water into the straw, and we will drink water.

There's a concept involved in this, atmospheric pressure. Due to the force of gravity, the air exerts pressure on the object immersed in it, that is, atmospheric pressure, or barometric pressure for short. Since the air is fluid, it will have pressure in all directions.

At the same point, the pressure of the air in all directions is small and equal.

In life, there is also a suction hook that uses this principle. When the suction hook is pressed against the wall, the air in the suction cup is squeezed out, which makes the air pressure in the suction cup smaller than the air pressure outside the suction cup, and the air pressure outside the suction cup presses the suction cup against the wall. There are also pumps, toilets, pumps, syringes for injections, pens for ink and so on.

The straw was invented in 1888 by Marvin Stone of the United States. At that time in the United States, people liked to drink chilled light wine. If you drink it directly into the glass, the heat in your mouth will reduce the cold taste of the wine, so at first, they tried to use natural wheat straw to suck it.

This solves the problem. However, the natural empty straw can easily break, and the flavor of the straw itself will be mixed into the sake, affecting the purity of the sake. This problem has not been solved.

At the time, Marvin Stone was a cigarette maker, and one day, he got inspiration from cigarette rolls and made a closed grinding straw out of paper, which he found to be convenient and easy to use, and there was no other peculiar smell. In this way, paper straws are widely used. After the invention of plastic, because the flexibility of plastic is very good and beautiful, and it can be made into various colors, people improved paper straws and used plastic straws.

That's how the invention of the straw came about, but unfortunately, Marvin Stone did not apply for an invention patent.

When using straws, have you ever wondered why straws should be made in a round shape instead of a square, oval, triangle, etc.?

First, the round shape matches the shape of our mouth, which is more comfortable to use.

Second, the round shape is the most material-saving. There is a mathematical problem involved here, and the largest area enclosed with the least amount of material is a circle. In other words, if the inner diameter area is the same, the round shape is the most economical material.

The area is the largest, then we will be able to absorb water quickly with a straw.

In fact, it can also help us to explain another phenomenon in our lives. The trunks of large trees are mostly round and oval. In fact, this is also the case, because the round conduit in the big tree will make the delivery of nutrients more efficient.

Of course, the trunk grows into this shape, not the result of our choice, but the result of nature's selection.

When sucking, the pressure inside the straw will be less than the outside atmospheric pressure, and the water will be pressed into the mouth under the action of the external god code air pressure, or think about it from another angle, will you feel that the mouth will be sucked into the teacup when you suck a teacup, if you make a hole in the back of the teacup now, the air will be sucked in, imagine the teacup with a hole as a straw, because there is a hole on the same side, and then it is much easier to understand the air as a drink.

The straw Qingchai material is mainly polypropylene, the straw produced by the regular manufacturer requires a lot of processes, and the qualified straw produced by polypropylene can withstand the high temperature of about 80 seconds, and it will not emit a plastic smell when heated; Other unscrupulous traders use ** plastic products to make mixed plastics, and the quality of their products is difficult to guarantee.

When sucking, the pressure inside the straw will be less than the outside atmospheric pressure, and the water will be pressed into the mouth under the action of the external god code air pressure, or think about it from another angle, will you feel that the mouth will be sucked into the teacup when you suck a teacup, if you make a hole in the back of the teacup now, the air will be sucked in, imagine the teacup with a hole as a straw, because there is a hole on the same side, and then it is much easier to understand the air as a drink.

The straw Qingchai material is mainly polypropylene, the straw produced by the regular manufacturer requires a lot of processes, and the qualified straw produced by polypropylene can withstand the high temperature of about 80 seconds, and it will not emit a plastic smell when heated; Other unscrupulous traders use ** plastic products to make mixed plastics, and the quality of their products is difficult to guarantee.