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Uneven heating, because of thermal expansion and contraction, the part that is heated first expands relatively quickly, and if it is heated evenly, it will not explode.
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From the perspective of molecular dynamics, the heat in one part is higher than in other places, so the molecular movement of this part will be faster than that of other parts. And then ......And it cracked ......
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Thermal expansion and contraction, the heat in one part is higher than in other places, then the molecular movement of this part will be faster than the other parts. Then the molecules are separated by force.
It's not just the bottle, it can be underdeveloped in ancient times, people open caves, if they encounter rocks, they will first burn with fire, and then hit with water, the stones are like tofu, you say that the rocks can't stand it, the bottle will stand it?
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In addition to the hot rise and cold contraction mentioned upstairs, there are. It's the seed, why? If when you accidentally put seeds and water in the bottle......Be careful, you're finished!
Because when the seed and the water are together, the seed absorbs the water. will swell, and the density of the seeds will increase. When the bottle cannot bear the size, it will crack due to the size of the seed. So adding water to the seeds is also a reason.
Good boy, don't try it!
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Hehe. Thermal expansion and cold contraction.
Left in a cold place for a long time.
The temperature of the bottle drops.
The bottle is cold.
Pour hot water suddenly.
Of course it will be fried. Too specific words.
I don't know how to say it
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Natural reactions. If it doesn't crack, it's wrong.
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It is mainly caused by improper methods when transporting, handling, storing, and opening. Collisions during transportation and handling, freezing and cracking due to high or low temperature during storage, and falling feet on the ground when drinking beer bottles will cause beer bottles to crack.
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Breaking the glass is usually done in very sad situations. Maybe it's possible when you're happy, but I've rarely seen someone break things when they're happy!
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Even if a broken glass bottle can be repaired, there will always be indelible marks.
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I don't know if you're asking about the paint coating cracking or the bottle cracking, the coating cracking There's a lot of moisture in the pigment The water evaporates and it dries out when it dries out... If the bottle cracks, it means that there is a corrosive ingredient in the pigment.
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That's because of the thermal expansion and contraction: that's because you wash the water bottle with cold water, or the boiling water is cold and you don't pour it, which causes the temperature inside to become lower, and suddenly the hot water can't be accepted at once, so it produces the phenomenon of **.
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Poor quality is a counterfeit product.
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If the glass bottle falls to the ground and breaks, the broken glass may pierce the kitten and dog. If you feel that a glass bottle is in danger of breaking, you can wrap the glass bottle in a circle with scotch tape, so that even if it falls to the ground, the broken glass will be stuck by the tape, you only need to pick it up and throw it in the trash, and even save the effort of sweeping the floor. And the best thing to do is:
You just remove the window glass and put it on the wood stove to heat yourself up a gelatin glass teacup, which looks a lot cooler.
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It's torn apart, and it's not right.
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There are thousands of experiments for foreigners, there is always one suitable for you, this issue of foreign brothers, will bring us an interesting demonstration experiment, that is, the bottle with external force, why does the bottom of the bottle fall down?
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Because the force is transitive, and the bottom of the bottle and the bottle body and the cap part form a lever, your father's hand is equivalent to the fulcrum, when your dad pats the bottle cap, the bottle will vibrate and rotate in a small arc, and the bottom of the bottle will also do a circular motion centered on your father's hand, but the centripetal force is required to do the circular movement, and the centripetal force of the circular motion at the bottom of the bottle is equivalent to the attraction of the bottle body and the bottom of the bottle (the bottom of the bottle and the bottle itself are not one, but are combined by some technology), When the centripetal force (attraction) provided is less than the force required to do the circular motion, the object will do centrifugal motion, so the bottom of the bottle will fall off.
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In the process of patting the bottom of the bottle, the pressure in the bottle is the same as the atmospheric pressure, and now you slap it, and the pressure inside increases dramatically, and the palm of the hand is blocked, and the gas can't come out, so it can only fill the bottom of the bottle.
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The pressure is transmitted to the bottom of the bottle through the water, and the bottom of the bottle cannot withstand this pressure and falls.
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Causes of thermal expansion and contraction. When the water is hot, the crack will become larger due to the high temperature, and the water will leak out easily, and when the water is cold, the gap will become smaller when it is cold, and the water will not leak out easily.
Because the process of making glass in the nineteenth century was relatively poor, it was difficult to separate some ferrous ions in glass at that time, and the glass bottles made were green. Later, although the technology was getting better and better, the cost of removing impurities from the glass increased, but the value of beer was relatively low, so there was no need to spend more money to remove the magazine. As a result, there are still many cheaper beers that use green bottles. >>>More
Soak your feet in hot water every day, dry them after soaking, and apply Vaseline body lotion.
It must be a problem of anti-cracking mortar, putty is not anti-cracking, this is a result of the formation of the pursuit of low cost, the later cracking will be more serious, when the time comes to meet the wind, it is possible that the whole wall will fall off, and the whole wall has fallen off.
First of all, beer is filled in green (or other dark) bottles, mainly because beer is afraid of light, especially draft beer (fresh beer that has not been pasteurized) has a lot of yeast, and light will cause the yeast to grow quickly, and at that time, you will find that the beer has white hairs. >>>More
It's not just that split-hearted radishes can't be eaten, vegetables are what we usually eat, so what should we pay attention to when buying vegetables? How to buy vegetables? What kind of vegetables can't be bought? Let's take a look at six vegetables that are best not to buy. >>>More