Why can t the water poured into the cap of the pen not be poured out?

Hello this friend, if the water of the key cap is too tension in the atmosphere, of course it will not pour out.

Because the tension and pressure of the water can keep it from falling out of the water.

It's like the water in the cup is obviously full, and then slowly add water. There is a reason why you can raise the water above the cup without overflowing.

In the same way, the material of most umbrellas is also non-waterproof, and the tension is formed by stretching it out, so that the non-waterproof material can achieve the purpose of waterproofing.

Because the water poured into the cap and the pressure generated by the outside world are generally not poured out.

Because there is pressure inside, the water cannot flow out. Once there is no such pressure in it, then the water can be poured out, and the pressure inside will always be there under normal circumstances.

The water poured into the cap of the pen will not be poured out because of the tension and air pressure of the water, so it cannot be poured out, a physical phenomenon.

This is a physical phenomenon, because the water in the cap is turned upside down and is resisted by the atmospheric pressure outside, and the gravity of the water column is not as strong as the atmospheric pressure, so it will not flow down.

Because of the pressure, the air pressure causes the pen cap to be filled.

You can't pour out the water in it.

When the eyebrows are critical, because he has pressure, who has pressure, so the water will not be poured out.

The battery cannot be replenished with electrolyte, which will only aggravate the aging of the battery. In addition, the distilled water poured out is black, which may be caused by the high power generation of your generator, which causes the grade plate to age, so the distilled water will turn black.

Why can't the water of the key cap be poured out The water poured into the cap can't be poured out Generally, it is sharper than the risk There is a steel ball at the bottom There is a magnetic bead As long as the water poured into the water is not easy to pour out.

If you can disassemble this method, you can take it out directly and squeeze out the water.

I can't tell the reason why I hit him nowhere, it must be a lot of people.

The air pressure inside the cap is less than the air pressure outside, so it does not flow out.

The magnitude of air pressure is related to altitude, atmospheric temperature, atmospheric density, etc., and generally decreases exponentially with the increase of altitude.

The relationship between air pressure and altitude.

There are diurnal and annual variations in air pressure. During the year, the air pressure is higher in winter than in summer. During the day, there is a maximum and a minimum value for air pressure, which occurs at 9 10 o'clock and 15 o'clock and 16 o'clock, and there is a second highest value and a second low value at 21 22 o'clock and 3 4 o'clock, respectively.

The diurnal variation of air pressure is small, generally in kilopascals, and decreases with increasing latitude.

The change of air pressure is closely related to the wind and the quality of the weather, so it is an important meteorological factor. The units of air pressure commonly used are Pa (Pa), millimeter mercury column height (mm·hg), and millibar (MB).

The conversion relationship between them is: 100 Pa = 1 mbar 3 4 mm mercury column height. The instruments commonly used to measure air pressure in meteorological observation are mercury barometer, empty box barometer, and barometer.

At a temperature of 0, the pressure of 760 mm of vertical mercury column high, the standard atmospheric pressure was first measured by the Italian scientist Tocho Lisari.

The pen cap is placed with the opening downward, and the pen cap can be filled with water just right, so it is impossible for the water to flow out.

Because there is an effect of atmospheric pressure.

Because the pen regrets that there is no air when the hat is full, the opening is small, and it is not sprinkled upside down because the atmospheric pressure is suppressed. The atmospheric pressure of the outside world can generally reach 10 to the 5th power of the Pascal, which is enough to be greater than the pressure of the water in the cap (1 standard atmosphere = 760 mm Hg = 76 cm Amin Hg = Pascal = meter water column), that is, the pressure of the atmosphere on the liquid level is stronger than the pressure of the water column on the liquid level, so the water will not be poured, but if the inversion process is unstable and the water surface cannot be calm, it will not be successful.