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2020 Volume 35 Issue 11
2020, 35(11): 1-8
doi: 10.3866/PKU.DXHX202002054
Abstract:
Chemistry is a central science. However, the public's recognition of chemistry needs to be promoted, and the prejudice needs to be reduced. Chemical science popularization is a long-term, complex and arduous social education project, which is of great significance to promote social harmony and improve people's quality of life. This paper summarizes the current status of chemical science popularization in China, and puts forward the innovative development countermeasures which focus on improving public participation, training popular science talents, carrying out popular science popularization education at different levels, creating high-quality science popularization works and opening up new positions and approaches of chemical science popularization. This paper has the reference value for the science popularization colleagues.
Chemistry is a central science. However, the public's recognition of chemistry needs to be promoted, and the prejudice needs to be reduced. Chemical science popularization is a long-term, complex and arduous social education project, which is of great significance to promote social harmony and improve people's quality of life. This paper summarizes the current status of chemical science popularization in China, and puts forward the innovative development countermeasures which focus on improving public participation, training popular science talents, carrying out popular science popularization education at different levels, creating high-quality science popularization works and opening up new positions and approaches of chemical science popularization. This paper has the reference value for the science popularization colleagues.
2020, 35(11): 9-16
doi: 10.3866/PKU.DXHX202006074
Abstract:
Fully understand the chemical science and reasonable use of existing resources is an important premise to chemical science popularization. This paper summarizes the current resource types of popular science of chemistry in China. The chemical science resources in China are sorted out and analyzed, including China Association for Science and Technology of chemical science, popular science base of scientific research institutes and universities, scientific public class and the chemical science online open courses, and WeChat public platform chemical resources. This paper will provide a meaningful introduction of chemical science resources for the public, and provide valuable reference for the practice of chemical science in China.
Fully understand the chemical science and reasonable use of existing resources is an important premise to chemical science popularization. This paper summarizes the current resource types of popular science of chemistry in China. The chemical science resources in China are sorted out and analyzed, including China Association for Science and Technology of chemical science, popular science base of scientific research institutes and universities, scientific public class and the chemical science online open courses, and WeChat public platform chemical resources. This paper will provide a meaningful introduction of chemical science resources for the public, and provide valuable reference for the practice of chemical science in China.
2020, 35(11): 17-20
doi: 10.3866/PKU.DXHX202004111
Abstract:
As one of alkali metal elements, beryllium has attracted much attention because of its unique nature. With an anthropomorphic tone, the article briefly introduces the abnormal chemical properties of beryllium and its applications in alloys, medical treatments, gemstones and other fields in recent years.
As one of alkali metal elements, beryllium has attracted much attention because of its unique nature. With an anthropomorphic tone, the article briefly introduces the abnormal chemical properties of beryllium and its applications in alloys, medical treatments, gemstones and other fields in recent years.
2020, 35(11): 21-25
doi: 10.3866/PKU.DXHX202004030
Abstract:
In this paper, we visualize the various properties of sodium into each “exhibition area”. And we introduce the property and application of sodium by the anthropomorphically story.
In this paper, we visualize the various properties of sodium into each “exhibition area”. And we introduce the property and application of sodium by the anthropomorphically story.
2020, 35(11): 26-29
doi: 10.3866/PKU.DXHX202003069
Abstract:
The Museum of element time and space held a special activity of “magnesium”. Curator Dr. Zhang and five guests introduced magnesium to visitors from the perspectives of discovery, phenomena of its combustion, alloy, Grignard reagent and applications of magnesium in biomedicine.
The Museum of element time and space held a special activity of “magnesium”. Curator Dr. Zhang and five guests introduced magnesium to visitors from the perspectives of discovery, phenomena of its combustion, alloy, Grignard reagent and applications of magnesium in biomedicine.
2020, 35(11): 30-36
doi: 10.3866/PKU.DXHX202005070
Abstract:
Phosphorus is the 15th element of the Group V in the third cycle in the periodic table of elements. It plays very important roles in our daily life, involving life, medicine, health, environment, materials, agriculture, etc. It is also indispensable in our daily diet. In this paper, food additives containing phosphorus were introduced in detail, focusing on their main types, application and safety evaluation. Through the discussion about food additives containing phosphorus, we wish to help the readers to have a scientific and fair understanding and comments for food additives.
Phosphorus is the 15th element of the Group V in the third cycle in the periodic table of elements. It plays very important roles in our daily life, involving life, medicine, health, environment, materials, agriculture, etc. It is also indispensable in our daily diet. In this paper, food additives containing phosphorus were introduced in detail, focusing on their main types, application and safety evaluation. Through the discussion about food additives containing phosphorus, we wish to help the readers to have a scientific and fair understanding and comments for food additives.
2020, 35(11): 37-40
doi: 10.3866/PKU.DXHX201911056
Abstract:
Titanium has played an essential role in human life and production. Herein, this paper personifies Titanium to describe its physical property, chemical property and application. Our aim is to make it easier for readers to understand in a more lively way.
Titanium has played an essential role in human life and production. Herein, this paper personifies Titanium to describe its physical property, chemical property and application. Our aim is to make it easier for readers to understand in a more lively way.
2020, 35(11): 41-45
doi: 10.3866/PKU.DXHX202007032
Abstract:
Through the setting of anthropomorphic dance scene, the properties and applications of chromium and its compounds are introduced.
Through the setting of anthropomorphic dance scene, the properties and applications of chromium and its compounds are introduced.
2020, 35(11): 46-50
doi: 10.3866/PKU.DXHX202007005
Abstract:
Manganese has played an essential role in human life and production. Herein, this paper introduces the manganese's resources, properties and applications. Our aim is to make it easier for readers to understand in a more lively way.
Manganese has played an essential role in human life and production. Herein, this paper introduces the manganese's resources, properties and applications. Our aim is to make it easier for readers to understand in a more lively way.
2020, 35(11): 51-57
doi: 10.3866/PKU.DXHX202006004
Abstract:
Iron has played an essential role in human life and production. Herein, by means of visit, this paper personifies Iron to describe its physical properties and chemical properties and its application in life and production. Our aim is to make it easier for readers to understand in a more lively way.
Iron has played an essential role in human life and production. Herein, by means of visit, this paper personifies Iron to describe its physical properties and chemical properties and its application in life and production. Our aim is to make it easier for readers to understand in a more lively way.
2020, 35(11): 58-61
doi: 10.3866/PKU.DXHX201909029
Abstract:
Gallium is the 31st element in the periodic table of elements. In this paper, the discovery, nature and application of gallium are introduced in the form of storytelling, aiming at giving readers a full understanding of “what is gallium?”
Gallium is the 31st element in the periodic table of elements. In this paper, the discovery, nature and application of gallium are introduced in the form of storytelling, aiming at giving readers a full understanding of “what is gallium?”
2020, 35(11): 62-65
doi: 10.3866/PKU.DXHX201911017
Abstract:
From the perspective of the molybdenum itself, the discovery history, special properties, its application in the industrial and military areas, together with the important contributions to the health of plants and human, have been briefly introduced to readers so as to enrich their scientific understanding of molybdenum-oriented technology.
From the perspective of the molybdenum itself, the discovery history, special properties, its application in the industrial and military areas, together with the important contributions to the health of plants and human, have been briefly introduced to readers so as to enrich their scientific understanding of molybdenum-oriented technology.
2020, 35(11): 66-71
doi: 10.3866/PKU.DXHX202009021
Abstract:
The lanthanides include elements having atomic numbers 57 (lanthanum) through 71 (lutetium). They all behave in a similar way in chemical reactions and play an increasingly important role in production and life. This article imagines a series of changes that have taken place on the earth since the disappearance of lanthanides, which shows their importance in human life.
The lanthanides include elements having atomic numbers 57 (lanthanum) through 71 (lutetium). They all behave in a similar way in chemical reactions and play an increasingly important role in production and life. This article imagines a series of changes that have taken place on the earth since the disappearance of lanthanides, which shows their importance in human life.
2020, 35(11): 72-75
doi: 10.3866/PKU.DXHX201910008
Abstract:
Gold, as a noble element, has attended the Element Talent Show. Four judges have been conquered by its hardcore ability in physics and chemistry, which let the audience understand the preliminary knowledge of relativistic effect and aurophilicity. Finally, Gold gets the express pass to semifinal of Talent Show.
Gold, as a noble element, has attended the Element Talent Show. Four judges have been conquered by its hardcore ability in physics and chemistry, which let the audience understand the preliminary knowledge of relativistic effect and aurophilicity. Finally, Gold gets the express pass to semifinal of Talent Show.
2020, 35(11): 76-80
doi: 10.3866/PKU.DXHX201907021
Abstract:
Radium is a radioactive metal element. In the early period of its discovery, it was abused due to the lack of understanding, which led to many tragedies. In this paper, in a self-reported tone and anthropomorphic way, the discovery and extensive application of radium is briefly reviewed.
Radium is a radioactive metal element. In the early period of its discovery, it was abused due to the lack of understanding, which led to many tragedies. In this paper, in a self-reported tone and anthropomorphic way, the discovery and extensive application of radium is briefly reviewed.
2020, 35(11): 81-85
doi: 10.3866/PKU.DXHX201912066
Abstract:
Through three stories about carbon-carbon double bonds, the series of dialogues between the protagonist Xiaoxi and her family members discuss the three structures and real life applications of alkenes containing the planar carbon-carbon double bond, namely the most basic ethene as a plant hormone, the health effect of cis or trans-unsaturated fatty acids, and the light sensing via the fast conversion of 11-cis-retinal cis-trans in rhodopsin.
Through three stories about carbon-carbon double bonds, the series of dialogues between the protagonist Xiaoxi and her family members discuss the three structures and real life applications of alkenes containing the planar carbon-carbon double bond, namely the most basic ethene as a plant hormone, the health effect of cis or trans-unsaturated fatty acids, and the light sensing via the fast conversion of 11-cis-retinal cis-trans in rhodopsin.
2020, 35(11): 86-89
doi: 10.3866/PKU.DXHX201907015
Abstract:
A brief review is given on the history of fullerene science. The international and domestic development of fullerene science is discussed. Also given are perspectives on the potential applications of fullerene in cosmetics.
A brief review is given on the history of fullerene science. The international and domestic development of fullerene science is discussed. Also given are perspectives on the potential applications of fullerene in cosmetics.
2020, 35(11): 90-95
doi: 10.3866/PKU.DXHX202001048
Abstract:
This article describes a dream of Little R visiting the ‘Chiral Molecule Museum’. It introduces the structure of chiral molecules, the experiment to demonstrate the existence of chiral molecules-experiments on the separation of optical isomers of sodium ammonium tartrate by Pasteur, the two enantiomers of limonene; chiral drug thalidomide, and asymmetric catalysis.
This article describes a dream of Little R visiting the ‘Chiral Molecule Museum’. It introduces the structure of chiral molecules, the experiment to demonstrate the existence of chiral molecules-experiments on the separation of optical isomers of sodium ammonium tartrate by Pasteur, the two enantiomers of limonene; chiral drug thalidomide, and asymmetric catalysis.
2020, 35(11): 96-100
doi: 10.3866/PKU.DXHX202004058
Abstract:
Through three stories about alcohol antiseptics, “hand” messengers, characters of the article find the best choice of alcohol, and method of application. This article introduces proper ways to use alcohol antiseptics in daily life from the following three aspects. The ethanol and propanol can be used, the best concentration for daily use is 70%, and the optimal use of alcohols is considered under different circumstances.
Through three stories about alcohol antiseptics, “hand” messengers, characters of the article find the best choice of alcohol, and method of application. This article introduces proper ways to use alcohol antiseptics in daily life from the following three aspects. The ethanol and propanol can be used, the best concentration for daily use is 70%, and the optimal use of alcohols is considered under different circumstances.
2020, 35(11): 101-105
doi: 10.3866/PKU.DXHX202002014
Abstract:
Greatness of clear wine comes from wooden ploughs. As an indispensable part of Chinese food culture, wine has gone through thousands of years with us. This essay will make an introduction of aspects of ethanol's nature, origin, metabolism by means of personification and in form of how Alcohol pursues his own memories, aiming at making readers feel the taste of chemistry with the popularization of science integrating science and fun.
Greatness of clear wine comes from wooden ploughs. As an indispensable part of Chinese food culture, wine has gone through thousands of years with us. This essay will make an introduction of aspects of ethanol's nature, origin, metabolism by means of personification and in form of how Alcohol pursues his own memories, aiming at making readers feel the taste of chemistry with the popularization of science integrating science and fun.
2020, 35(11): 106-109
doi: 10.3866/PKU.DXHX202006005
Abstract:
This article describes an introduction of fulminic acid. The story of fulminic acid and fulminates was introduced from the discovery of mercury fulminate to the concept of isomers and the success of Alfred Nobel in the development of explosives. This process provides a good example of integrating science and technology.
This article describes an introduction of fulminic acid. The story of fulminic acid and fulminates was introduced from the discovery of mercury fulminate to the concept of isomers and the success of Alfred Nobel in the development of explosives. This process provides a good example of integrating science and technology.
2020, 35(11): 110-114
doi: 10.3866/PKU.DXHX202006078
Abstract:
The shadow of vitamin B1 follows the footsteps of human in the fight against beriberi. Mankind's understanding of VB1 accumulates gradually, experiences a long and tortuous process, and finally comes to the truth. It is essential to the normal functioning of the body. Scientific spirit and scientific methods are proved undoubtly to be the crucial factors to overcome beriberi and discover vitamin B1. Scientific development is endless, and people are still exploring new areas of vitamin B1.
The shadow of vitamin B1 follows the footsteps of human in the fight against beriberi. Mankind's understanding of VB1 accumulates gradually, experiences a long and tortuous process, and finally comes to the truth. It is essential to the normal functioning of the body. Scientific spirit and scientific methods are proved undoubtly to be the crucial factors to overcome beriberi and discover vitamin B1. Scientific development is endless, and people are still exploring new areas of vitamin B1.
2020, 35(11): 115-120
doi: 10.3866/PKU.DXHX202006033
Abstract:
This is a piece of confession made by Nicotine where its molecular structure and some physiological functions are introduced. The toxicity of Nicotine on human body has been revealed, based on an authentic suicide case. Combined with medical knowledge, the process of Nicotine intoxication, the mechanism of smoking addition and Nicotine's negative effect on human body, have been presented. Ultimately non-smoking advice is suggested for the sake of human health.
This is a piece of confession made by Nicotine where its molecular structure and some physiological functions are introduced. The toxicity of Nicotine on human body has been revealed, based on an authentic suicide case. Combined with medical knowledge, the process of Nicotine intoxication, the mechanism of smoking addition and Nicotine's negative effect on human body, have been presented. Ultimately non-smoking advice is suggested for the sake of human health.
2020, 35(11): 121-126
doi: 10.3866/PKU.DXHX202007009
Abstract:
The invention of air conditioner (AC) has undoubtedly saved the world from the heat of summer. The development of AC is an important embodiment of continuous development and perfection of science and technology. This article explains the mechanism of freon pollution from the perspective of chemistry, and enumerates the important role of fluoride in daily life, to eliminates people's misunderstanding of fluorine element. The hardships of extracting fluorine reflect the chemists' research experience of collecting experience from failure and the scientific spirit of pursuing the truth.
The invention of air conditioner (AC) has undoubtedly saved the world from the heat of summer. The development of AC is an important embodiment of continuous development and perfection of science and technology. This article explains the mechanism of freon pollution from the perspective of chemistry, and enumerates the important role of fluoride in daily life, to eliminates people's misunderstanding of fluorine element. The hardships of extracting fluorine reflect the chemists' research experience of collecting experience from failure and the scientific spirit of pursuing the truth.
2020, 35(11): 127-131
doi: 10.3866/PKU.DXHX202007010
Abstract:
Known as the “timeless classic”, jeans have been deeply integrated into people's lives. In order to give readers a more comprehensive and profound understanding of jeans, this paper introduces the development of indigo dye and the principles of jeans dyeing and aging process from the perspective of chemistry.
Known as the “timeless classic”, jeans have been deeply integrated into people's lives. In order to give readers a more comprehensive and profound understanding of jeans, this paper introduces the development of indigo dye and the principles of jeans dyeing and aging process from the perspective of chemistry.
2020, 35(11): 132-138
doi: 10.3866/PKU.DXHX202008029
Abstract:
“When the fire is pure blue, cast can begin”, from the birth of the ware to the evolution of the material, it is all about the fascination of chemistry. In the form of a diary, this article recounts a fascinating journey in which I met, got to know and became acquainted with ceramics, bronze and iron in my dreams, aiming at making the reader realize the chemical knowledge behind those gradually forgotten national treasures in a relaxing and lively story.
“When the fire is pure blue, cast can begin”, from the birth of the ware to the evolution of the material, it is all about the fascination of chemistry. In the form of a diary, this article recounts a fascinating journey in which I met, got to know and became acquainted with ceramics, bronze and iron in my dreams, aiming at making the reader realize the chemical knowledge behind those gradually forgotten national treasures in a relaxing and lively story.
2020, 35(11): 139-143
doi: 10.3866/PKU.DXHX202007008
Abstract:
Masks have played an important role in the fight against COVID-19. This paper introduces the knowledge of melt blown fabric and non-woven fabric related to mask by means of personification, and the relationship between melt index and product quality. Readers can understand the knowledge of polymer chemistry related to masks in interesting reading.
Masks have played an important role in the fight against COVID-19. This paper introduces the knowledge of melt blown fabric and non-woven fabric related to mask by means of personification, and the relationship between melt index and product quality. Readers can understand the knowledge of polymer chemistry related to masks in interesting reading.
2020, 35(11): 144-149
doi: 10.3866/PKU.DXHX202006088
Abstract:
Chemistry is a central, practical and creative discipline. The development of chemistry plays an important role in the progress of science and society, as well as the improvement of the quality of human life. This paper introduces the chemical knowledge of stone, concrete, glass and other inorganic nonmetallic building materials by the anthropomorphically story. Taking nanomaterials as an example, the prospect of building materials development in the future is put forward.
Chemistry is a central, practical and creative discipline. The development of chemistry plays an important role in the progress of science and society, as well as the improvement of the quality of human life. This paper introduces the chemical knowledge of stone, concrete, glass and other inorganic nonmetallic building materials by the anthropomorphically story. Taking nanomaterials as an example, the prospect of building materials development in the future is put forward.
2020, 35(11): 150-154
doi: 10.3866/PKU.DXHX202005009
Abstract:
Chemistry contributes a lot to the rapid development of science and technology. Herein, applying the concept of “chemistry from nothing”, we explained the principles in cutting-edge chemical achievements for undergraduates. Reading this article, they are supposed to understand the theoretical knowledge further and show more interested in the frontiers of chemistry.
Chemistry contributes a lot to the rapid development of science and technology. Herein, applying the concept of “chemistry from nothing”, we explained the principles in cutting-edge chemical achievements for undergraduates. Reading this article, they are supposed to understand the theoretical knowledge further and show more interested in the frontiers of chemistry.
2020, 35(11): 155-159
doi: 10.3866/PKU.DXHX202005053
Abstract:
In the first person, this paper described the history of durian from being discovered to becoming “the king of fruits”. The source of durian smell and the nutritional value of durian are introduced by a vivid description so as to help readers easily gain the true understanding of durian.
In the first person, this paper described the history of durian from being discovered to becoming “the king of fruits”. The source of durian smell and the nutritional value of durian are introduced by a vivid description so as to help readers easily gain the true understanding of durian.
2020, 35(11): 160-165
doi: 10.3866/PKU.DXHX202002008
Abstract:
As an old saying goes: “firewood, rice, oil, salt, sauce, vinegar, tea”, as one of the most popular seasonings in the kitchen, soy sauce brings us rich taste experience every day. In order to give readers a more comprehensive and in-depth understanding of this condiment that is closely related to our lives, this paper introduces the history of soy sauce, brewing technology and the formation principle of color and flavor from the perspective of chemistry.
As an old saying goes: “firewood, rice, oil, salt, sauce, vinegar, tea”, as one of the most popular seasonings in the kitchen, soy sauce brings us rich taste experience every day. In order to give readers a more comprehensive and in-depth understanding of this condiment that is closely related to our lives, this paper introduces the history of soy sauce, brewing technology and the formation principle of color and flavor from the perspective of chemistry.
2020, 35(11): 166-169
doi: 10.3866/PKU.DXHX202009053
Abstract:
Since the widespread plantation of oranges and the rapid development of the orange juice processing industry, orange peel has been one of the main wastes in today's food industry. Orange peel is rich in high value-added compounds. Recycling of these substances can reduce the environmental pollution and resource waste effectively. It can also bring quantities of products with economic and social value. To help readers deepen their understanding of orange peel further in reading, in this review paper, we introduce the composition, properties, usage and future directions of the essential oil, pectin, pigment, hesperidin and dietary fiber in orange peel.
Since the widespread plantation of oranges and the rapid development of the orange juice processing industry, orange peel has been one of the main wastes in today's food industry. Orange peel is rich in high value-added compounds. Recycling of these substances can reduce the environmental pollution and resource waste effectively. It can also bring quantities of products with economic and social value. To help readers deepen their understanding of orange peel further in reading, in this review paper, we introduce the composition, properties, usage and future directions of the essential oil, pectin, pigment, hesperidin and dietary fiber in orange peel.
2020, 35(11): 170-177
doi: 10.3866/PKU.DXHX202007027
Abstract:
This article introduces the relationship between chemistry and fish farming, fish selling, and fish food. The nitrogen cycle process in fish ponds is introduced to explain the fish farming. “Yufuling” is used as the entry point to fish selling to connect food safety with chemistry. Fishy smell is explained from a chemical perspective for fish food. This paper aims at making a scientific explanation of life phenomena, deepening the consciousness of chemical life, helping people establish a correct view of chemical science, and inspiring youth to learn to use the knowledge that they have learned to explain life phenomena. This paper also tries to show the youth that life cannot be separated from chemistry, and chemistry cannot be separated from life.
This article introduces the relationship between chemistry and fish farming, fish selling, and fish food. The nitrogen cycle process in fish ponds is introduced to explain the fish farming. “Yufuling” is used as the entry point to fish selling to connect food safety with chemistry. Fishy smell is explained from a chemical perspective for fish food. This paper aims at making a scientific explanation of life phenomena, deepening the consciousness of chemical life, helping people establish a correct view of chemical science, and inspiring youth to learn to use the knowledge that they have learned to explain life phenomena. This paper also tries to show the youth that life cannot be separated from chemistry, and chemistry cannot be separated from life.
2020, 35(11): 178-183
doi: 10.3866/PKU.DXHX202006072
Abstract:
X-ray is an electromagnetic wave. Although it is inherently dangerous, it plays an important role in human life and production. In this paper, the discovery, essence, characteristics and scientific application of X-rays are vividly introduced in a self-reported tone，so that readers have a correct understanding of X-rays.
X-ray is an electromagnetic wave. Although it is inherently dangerous, it plays an important role in human life and production. In this paper, the discovery, essence, characteristics and scientific application of X-rays are vividly introduced in a self-reported tone，so that readers have a correct understanding of X-rays.
2020, 35(11): 184-188
doi: 10.3866/PKU.DXHX201910019
Abstract:
Fingerprint can be widely acknowledged as the “first evidence” of forensic science, in which fingerprint manifestation is the first and also the most important step to discover latent fingerprint. Flipped classroom and team-based learning modes have been implemented in the chapter of “chemistry and criminal science and technology” of Chemistry and Society course. Students were encouraged to consult relevant references in advance and participated in the team discussion in class. Herein, the fingerprint is personified into a “mysterious thief” with multiple faces, while various fingerprint display technologies are personified into investigators of the fingerprint department. Collectively, this teaching strategy can popularize the chemical principles of several fingerprint techniques to students, enrich their scientific understanding of the fingerprint display technology, and improve their scientific quality and learning interests.
Fingerprint can be widely acknowledged as the “first evidence” of forensic science, in which fingerprint manifestation is the first and also the most important step to discover latent fingerprint. Flipped classroom and team-based learning modes have been implemented in the chapter of “chemistry and criminal science and technology” of Chemistry and Society course. Students were encouraged to consult relevant references in advance and participated in the team discussion in class. Herein, the fingerprint is personified into a “mysterious thief” with multiple faces, while various fingerprint display technologies are personified into investigators of the fingerprint department. Collectively, this teaching strategy can popularize the chemical principles of several fingerprint techniques to students, enrich their scientific understanding of the fingerprint display technology, and improve their scientific quality and learning interests.
2020, 35(11): 189-194
doi: 10.3866/PKU.DXHX202006081
Abstract:
Chemistry is the force to transform nature. To let people have a proper understanding of chemistry, this popular science teaching team, based on the previously Finding Chemistry in Detective Conan, select creatively words from the lyrics of influential pop songs, such as “blue and white porcelain” and “bubble”, as the hot problems for chemistry popular science teaching; based on the chemistry topic of each part, seven interactive episodes of popular science are designed, which are rich in content and popular with readers.
Chemistry is the force to transform nature. To let people have a proper understanding of chemistry, this popular science teaching team, based on the previously Finding Chemistry in Detective Conan, select creatively words from the lyrics of influential pop songs, such as “blue and white porcelain” and “bubble”, as the hot problems for chemistry popular science teaching; based on the chemistry topic of each part, seven interactive episodes of popular science are designed, which are rich in content and popular with readers.
2020, 35(11): 195-201
doi: 10.3866/PKU.DXHX202007006
Abstract:
The phenomenon of green fading while cooking vegetables is explained scientifically in this paper. Why most vegetables are green? What kind of physiological and chemical changes occurs to the vegetables during heating? How to prevent the green fading while cooking vegetables in daily life? All these questions are discussed in detail. A series of scientific experiments in home lab are also designed to keep green while cooking vegetables. The results indicate that vegetables might keep green via pretreatment with proper amount of salt or oil in the boiling water, or cooking without the lid covering the pot.
The phenomenon of green fading while cooking vegetables is explained scientifically in this paper. Why most vegetables are green? What kind of physiological and chemical changes occurs to the vegetables during heating? How to prevent the green fading while cooking vegetables in daily life? All these questions are discussed in detail. A series of scientific experiments in home lab are also designed to keep green while cooking vegetables. The results indicate that vegetables might keep green via pretreatment with proper amount of salt or oil in the boiling water, or cooking without the lid covering the pot.
2020, 35(11): 202-208
doi: 10.3866/PKU.DXHX201910042
Abstract:
There is a kind of magical super-infiltration phenomenon in nature, which is caused by the special micro-and nano-structures on its surface. For example, the droplets of water on lotus leaves after rain, and the lightness skill of water striders float on the water. In the manuscript, two simple super-infiltrative interfacial agents and a switch-type Cu(OH)2@ZIF-8 nanomesh were synthesized by simulating the micro-interface structure of natural plants. The omni-directional popularization of science is a magical and interesting natural phenomenon to stimulate teenagers' interest in nature and science.
There is a kind of magical super-infiltration phenomenon in nature, which is caused by the special micro-and nano-structures on its surface. For example, the droplets of water on lotus leaves after rain, and the lightness skill of water striders float on the water. In the manuscript, two simple super-infiltrative interfacial agents and a switch-type Cu(OH)2@ZIF-8 nanomesh were synthesized by simulating the micro-interface structure of natural plants. The omni-directional popularization of science is a magical and interesting natural phenomenon to stimulate teenagers' interest in nature and science.
