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brass tubes scientific experiments

author:MF manufacturerstime:2022-03-18 02:45:17

every day1Scientific knowledge,Cultivate children's scientific literacy。

Arts | Magic science small experiment,This article is original,Welcome attention and reprint sharing。

Old Beijing's mutton has a long history,Make simple,Unique taste,Inheritance has been developed into a diet cultural symbol of Beijing.。Don't say that there is a delicious lamb.,The light is a golden copper pot in the center of the table.。Why is authentic old Beijing eat copper pot,Not a cooker or aluminum pot??Said that it is true that it is。today,Let's go deep into this topic to explore.。


brass tubes scientific experiments

Copper hot pot The picture is from the network invasion


Experiment


Shear clamp、Candle、lighter、Fine copper tube

(brass tubes scientific experiments)

brass tubes scientific experiments


Experimental steps


1.Use a shear clamp to intercept a fine copper tube and twist into a tower。

(brass tubes scientific experiments)

brass tubes scientific experiments

brass tubes scientific experiments


2.Those of the screwed copper tube tower do not seal,Leave a small hole。


brass tubes scientific experiments

brass tubes scientific experiments


(brass tubes scientific experiments)3.light up the candle,Put the copper tube tunnel to the fire。


brass tubes scientific experiments

brass tubes scientific experiments


(brass tubes scientific experiments)4.The copper tube tower is pressed to the fire root, stay again and then remove。


brass tubes scientific experiments


(brass tubes scientific experiments)Phenomenon and principle analysis

(brass tubes scientific experiments)

We discover the experiments above:Copper tube tower cover candle flame and press down,The flame is pressed and the smaller,But do not wear a small hole in the top of the copper tube tower。After reaching the roots of the flame,Flame extinguish,Lift the copper tube tower at this time,The flame is also engraved。


brass tubes scientific experiments

brass tubes scientific experiments(brass tubes scientific experiments)

brass tubes scientific experiments

Flame change process


Why do there happen this magical phenomenon??turn out to be,Copper has good thermal conductivity。Copper tube is screwed into a tower,Maximize contact area with flames。When the copper tube tower is covered with flames,The heat of the flame is quickly sucked,Temperature decrease makes the flame become small,Even below the fire point of the candle。After the copper pipe is removed,Temperature rebound quickly,Candle re-burning。


brass tubes scientific experiments(brass tubes scientific experiments)


Chatter again5Cow's science


Copper is a metal element present in the ocean and crust,Also a transition element。Pure copper soft,Have a good ductility,When the surface is just cut, it is orange.,Metal gloss,Single copper is purple。Copper has good conductive properties and thermal conductivity,Therefore, there is a common material in the cable appliance and the electronic component.。


Copper is one of the best metals used in humans。As early as prehistoric era,People began to extract open-air copper mines,And used to manufacture weapons、Tools and other vessels。Copper use,A far-reaching impact on the advancement of early human civilization。China's history of copper can be traced back to six or seven years ago.,About5500-4500Years,China enters the era of coexistence between copper and stone,Then the bronze is one of the carriers of ancient Chinese splendid culture.。

(brass tubes scientific experiments)

Now we don't even understand why the old Beijing's meat is mostly used in copper pot.。Copper pots can quickly absorb temperatures from heat sources,Copper wok is rapidly warming and maintaining more constant heat,And copper is also a trace element necessary for human body,For the blood of the human body、Central nervous and immune system,Hair、skin、Bone tissue、brain、liver、The development and function of organs such as hearts have an important impact。

(brass tubes scientific experiments)

The copper fire pot is like a hermit, from the perspective of history.,All the way,Still is still,Therefore, the copper hot pot is still saved in nature and quaint.。turn out to be,Old Beijing copper cooker is also a kind of origin and culture。


Cerebral time


Open the brain,Can the sheet of paper on a thick copper pipe??Welcome to the message area,Let's see the next period!


Experimental consideration

(brass tubes scientific experiments)

This experiment is used to open fire,Need to pay strict attention to fire safety。The hot copper tube temperature is extremely high.,Beware of hot hands。Children should operate experiments under adult supervision,And ensure safety。


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I am a master's dad.,Love life、Love science,Accompanyaba400Multiple“Magic science small experiment”。Pay attention to me,every day3minute,Do a small experiment with your child at home,Cultivate children's scientific literacy!

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