楼层导览_中国杭州低碳科技馆_低碳科技普及_绿色建筑展示_低碳学术交流

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Preface Hall

Pictures, videos, models, and smart technologies are provided to advocate that low-carbon life is mankind’s chosen future, arousing visitors curiosity to further explore the museum.

Low-Carbon Tips

Use eco-friendly bags instead of plastic ones.Use permanent tableware instead of disposable ones. Use public transit instead of driving.Make the most of every piece of paper. Use energy-saving lamps.Use your own cup instead of disposable ones. Use air conditioning appropriately.

Shocking Facts

Greenhouse gases make the Earth hot. The on-going process of industrialization over the past 200 years has produced enormous greenhouse gases, mainly CO2, that invite the global temperature rise and climate change. They’ve led to serious consequences, such as the increase in forest fires, the melting of glaciers, and the loss of biodiversity.

Green Building

As the first science & technology museum in China with a Certificate of Green Building Label (Three Stars), we use 10 energy-saving technologies and are one of the models that demonstrate Hangzhou’s efforts to create a low-carbon city.

Kids’ World

It is divided into five zones, each named Discovery Base, Jungle Ventures, Countryside Ventures, Water Fun and Low Carbon Lab. You will get basic knowledge on environment, mechanics, optics, biology, etc. It helps enhance one’s insight, imagination, and creativity.

Low-Carbon Laboratory

Garbage is a misplaced resource. The recycling and reuse of garbage in daily life will help children develop environmental awareness and habits.

Finding Fireflies

People developed the biomimetic technology for fluorescent displays to mimic fireflies. The touch-and-see game will show you the principle of fluorescence emitted by fireflies, and how the mother nature inspires the biomimetics in so many ways.

Water Fun

Playing with a riot of mechanical devices (e.g., water without source, pressure pump, centrifugal pump, Archimedes screw pump, pressure water gun, and dancing water flow) will also be a journey to hands-on knowledge, such as hydraulic force, kinetic energy, potential energy, fluid mechanics, sound/light/electrical control, and mechanical transmission, etc.

Food Chain in Forests

The food chain that involves flora and fauna matters for a low-carbon environment. If one link disappears, it will affect the survival of all species in the entire food chain, and even ultimately the Earth’s environment and mankind’s living space. The game is fun but instructive.

Colored Shadows

Shadows are created because the light travels in a straight line. Due to the different angles of red, green, and blue lighting, one or two colors might be blocked in some positions. That is how colored shadows are created. Most colors in nature can be mixed using red, green, and blue in different proportions. Stand in different positions, and try to create as many colored shadows as possible.

Shiny Round Holes

Light is a substance that exists in the form of electromagnetic waves, and visible light is the part of the electromagnetic spectrum that can be perceived by our eyes. We sense different colors when seeing light with different wavelengths. Insert the transparent plexiglass sticks into the small round holes in the wall and find light in different colors. When the holes are filled with sticks, the wall is densely colored. You can also use sticks to create pictures.

CO? Trivia

These are quizzes about the impact of CO? on human body, the relationship between CO? and plants, the use of CO?, and the impact of CO? on our lives. They will trigger children’s thinking about a low-carbon life.

Dubbing Animations

Dubbing is a language art. Select an animation clip you are interested in or familiar with from the menu on the computer, watch it first with original sounds, then dub it. You can play back the clip and compare it with the original one, too.

The Power of Drum

The air that flows is called airflow. When air flows through an object or an object moves in the air, the force exerted by the air on the object is known as aerodynamic force. You can hit the hollow drum, see how metal pieces shake and shine, and learn basic knowledge about aerodynamics, air movement, and the interaction between air and objects.

Mirror Maze

Explore the tunnel-like maze installed with flat mirrors and optical elements, and you will learn more optical imaging phenomena such as distortion and inversion of light.

Thematic Exhibition Hall

This is the venue for temporary exhibitions on low-carbon events or other hot issues. Sometimes there are also cultural activities and science education programs. The purpose is to attract teens to acquire the knowledge and practice a low-carbon lifestyle.

Global Warming Hall

This 1,600-m2 hall uses 4D multimedia technology to present a stark contrast between beautiful nature and the consequences caused by global warming. You will be on a ride by bamboo raft to journey through six stops, i.e., Xixi Wetland in Spring, Sprawling City, Melting Glaciers, Burning Earth, Extreme Weathers, and Xixi Wetland in Autumn.

Carbon Cycle Hall

It has four parts, i.e., Carbon in the Earth, Carbon Cycle in Nature,Utilization of Carbon, and Impacts of Human Activities on the Carbon Cycle.

Buckytube

Buckytube, also known as carbon nanotube, features high axial strength and stiffness. Theoretically, its strength is 100 times that of steel, while its density is only 1/6 of steel. It is also very flexible and is called super fiber. Therefore, it is often used as a reinforcement for composite materials.

Fullerene

Fullerene, an allotrope of carbon, is a hollow molecule composed entirely of carbons in the shape of a sphere, ellipsoid, column, or tube. Its structure is similar to that of graphite, but graphite has only six-membered rings, while fullerene might have five-membered rings. Fullerene is also known as Buckyball. Discovered in 1985, it is the fourth crystalline form of carbon, following diamond, graphite, and linear carbon. It is harder than diamond, more conductive than copper, and 100 times tougher than steel.

Carbon-Containing Minerals

Carbon is a common element that is widely found in the atmosphere and crust in many forms. It has long been recognized and utilized, and a series of carbon compounds and organic matters are the foundation of life. Carbon is an element in pig iron, wrought iron, and steel.

Diamond

Diamond is the hardest known substance in the world and has the strongest carbon structure. The carbon atoms are arranged in the form of a crystal structure. Each carbon atom is tightly combined with another four to form a spatial network, which finally forms a solid with high hardness and poor activity. Diamond’s melting point is above 3,500℃, equivalent to the surface temperature of some stars.

Exploitation of Onshore Oil

The pumping unit is one of the most important pieces of equipment in oil extraction, commonly known as the “kowtow machine.” It lifts the crude oil at the bottom of the well to the surface with suction rods and pumps. The scene of onshore oil exploitation will help you understand the principle of pumping units.

Doctor’s Study

As a one-dimensional nanomaterial, carbon nanotube is lightweight and has perfect hexagonal structures. It boasts many exceptional mechanical, electrical, and chemical properties. In this small hexagonal theater, you will learn about the structural properties and applications of carbon nanotubes from a “doctor.”

Coal Mining

Coal is known as “black gold” or “food for industry”, and it has been one of the main sources of energy since the 18th century. You can play with the simulated equipment and learn more about the coal mining technologies.

Clever Use of CO?

CO? is an indispensable raw material for plants’ photosynthesis. Within a certain range, the higher the CO? concentration, the stronger the photosynthesis; hence, it is the best gaseous fertilizer. In this simulated plant room, when the number of visitors is higher, the CO? concentration will be on the rise, and the plants on the wall will be lusher.

Calorific Value

A caloric value is the heat produced by the complete combustion of one kilo of a solid fuel or one cubic meter of a gaseous fuel. It reflects the combustion characteristics of fuels, that is, the ability of different fuels to convert chemical energy into internal energy during the combustion process.

The Impact of Human Activities on the Carbon Cycle

The mirror-decorated corridor is divided into three parts: Population Growth, Deforestation, and Fossil Energy Exploitation. You may learn from pictures along the wall.

Biodegraded Substances

Biodegradation generally refers to the decomposition of microorganisms, which may be aerobic or anaerobic respiration. The ease of biodegradation of organic compounds depends primarily on the characteristics of the organism itself but also on the structural characteristics of organic matters. Organic matters in a simple structure are generally degraded first, and those in a complex structure are degraded later. Substances decomposed by microorganisms in nature will not have a negative impact on the environment.

Graphite

Graphite is a dark gray, metallic, opaque, fine-scale-shaped solid. It is soft, slippery, and has excellent electrical conductivity. The carbon atoms in graphite are bound together in a planar layered structure, and the bonds between the layers are relatively weak, so the layers are easily separated by sliding. Graphite is often used to make pencils, electrodes, tram cables, etc.

Exploration of Seabed Oil

Oil in the seabed is regarded as a seabed oil resource, regardless of whether it is generated in the marine environment. The production process of seabed oil is generally divided into two stages: exploration and extraction. You will see how to explore the seabed oil.

Formation and Existence of Carbon

The Big Bang, the Formation of Carbon, the Five Carbon Pools, and the Carbon Cycle in Nature are the four topics in this part. The first two are projected on a spherical screen with a diameter of 8 meters on the ceiling of a dome, where you can sit back and enjoy an immersive experience.

The Hardness of Carbon Alloys

An iron-carbon alloy is a binary alloy composed of iron and carbon. Carbon steel and cast iron, the most widely used iron-based materials, are industrial iron-carbon alloys. In addition to carbon, carbon steel and cast iron contain some impurities (e.g., silicon, manganese, sulfur, phosphorus, nitrogen, hydrogen, and oxygen), brought in by pig iron, deoxidizers, and fuels during the smelting proces

The Scale of Life

You can estimate how many years the organisms date back to by using carbon-14 dating method.

Carbon and Life

Carbon is the foundation of all life. However, its content in the crust is not very high. Most of the carbon is stored in rocks, coal, oil, and other deposits. The carbon in living things is only a little more than 0.1% of all the carbon in the crust. You will learn about the relationship between carbon and life from various perspectives at both macro and micro levels.

Exploitation of Natural Gas

Natural gas, like crude oil, is in enclosed geological formations underground, some in the same layer as crude oil and some not. Natural gas in the same layer as crude oil is extracted along with the crude oil. The method to exploit natural gas has similarities and differences with that for crude oil.

Optical isomerism

Optical isomerism is a very common phenomenon. Most natural products have optical activities, and many large molecules related to life have a close relationship with optical isomerism. Many bacteria have an effect on only one of the enantiomers in the drug.

Degradation of Organic Matters

Degradation is the process by which high-molecular-weight organic matters are broken down into low-molecular-weight substances and finally into simple compounds (e.g., CO2 and water). The degradation of organic matters can be chemical, biological, or photochemical, and the biological one is the most important. The chemical degradation of organic matters can be accomplished by oxidation, hydrolysis, reduction, and other reactions.

A Gift from the Ancients: Coal

Coal is composed of carbon, hydrogen, oxygen, nitrogen, sulfur, phosphorus, and other elements, and the sum of carbon, hydrogen, and oxygen accounts for more than 95% of its organic matter. It is a very important energy source as well as an essential raw material for metallurgy and chemical industry. It can be classified into lignite, bituminous coal, anthracite, and semi-anthracite. The remains of ancient plants, buried under strata, change under pressure and temperature as the crust isolates air and turns into carbonized fossil minerals that is called coal. Coal is usually mined and used as fuel.

A Gift from the Ancients: Petroleum

It takes at least two million years for petroleum to be created. The oldest reservoir discovered today is as old as 500 million years. During the long history of the Earth’s evolution, there were some special periods (e.g., the Paleozoic and Mesozoic Eras) when, after the deaths of many plants and animals, the organic matters that make up their bodies continued to decompose, mixing with sediment or carbonate sediments and other substances to form sedimentary layers. As the sediments accumulate and thicken, the temperature and pressure rise, and the sedimentary layers become sedimentary rocks and later sedimentary basins, which provide the basic geological environment for the creation of petroleum.

A Gift from the Ancients: Natural Gas

Broadly speaking, natural gas refers to all gases in nature, including gases naturally formed in the atmosphere, hydrosphere, biosphere, and lithosphere. Narrowly speaking, from the perspective of energy, natural gas refers to a mixture of hydrocarbon and non-hydrocarbon gases naturally existing in strata. Usually, when we talk about natural gas, we refer to the latter.

The Most Important Chemical Reaction

Photosynthesis is the process by which green plants (including algae) absorb light energy, synthesize CO2 and water into organic matter, and meanwhile release oxygen. Photosynthesis and biodegradation are essential carbon cycle processes in nature.

Low Carbon City Hall

It shows low-carbonn products that are closely related to people’s lives. Interactive exhibits, such as the measurement of carbon emissions from various vehicles and the current status of energy utilization in China, convince visitors to adopt a low-carbon lifestyle.

Urban Energy Planner

New energy, also known as unconventional energy, refers to energy sources that have just begun to be developed, utilized, studied, or promoted, such as solar, geothermal, wind, ocean, biomass, and nuclear fusion. You can play multimedia games to plan a new-energy city and learn about the importance of sustainability.

Urban Forest and Wetland Carbon Sink

A forest carbon sink occurs when plants absorb CO2 and fix it in vegetation or soil, thereby reducing the CO2 concentration in the atmosphere. Wetland is known as “the Earth'’ kidney” and is effective in carbon sinking. The gallery allows you to watch simulated scenes and play with the installations to learn about the role of forests and wetlands in carbon sinks.

Urban Complex

The urban complex basically has all the functions of a modern city, so it is also called a “city within a city.” It has at least three urban functions (e.g., shopping, office, residence, hotel, exhibition, catering, conference, entertainment, and transportation) and establishes an interdependent and mutually beneficial relationship between each function. It is multi-functional and efficient.

Building or Power Station

This low-carbon building model has photovoltaic panels on top, which convert sunlight into electricity to provide an uninterruptible power supply to the building. You will learn about the working principles of solar power and the importance of renewable energy.

Low-Carbon Hangzhou

This is an open-scene theater. On the right side, a huge bamboo forest picture and 10 embedded landscape boxes show you the low-carbon products with Hangzhou characteristics. On the left side, a screen with a scattered perspective effect is used to play animations about Hangzhou, supported by thoughtfully designed lighting, realistic objects, and elegant music. You will find yourself in a scene typical of the wonderful landscapes in the south of the Yangtze River and appreciate the efforts made to build a low-carbon, livable city.

Low-Carbon Building Design

To create low-carbon buildings, people try to use fewer fossil fuels, improve energy efficiency, and cut CO2 emissions throughout the lifecycle of building materials and equipment manufacturing, construction, and operation. Choose new technologies and materials from the touch screen to design a low-carbon building, and you’ll get informed if the building is energy-efficient.

Geothermal City

The huge thermal energy inside the Earth is the main source of energy for volcanoes, hot springs, earthquakes, and crustal movements. It’s also a clean and promising energy for mankind. The main use of geothermal energy is the extraction of hot water. Models and videos are used to show you how geothermal energy is used in the city.

Aircrafts’ Carbon Emission

You will act as pilots to fly an aircraft from Hangzhou to Shanghai. A realistic cockpit model, equipped with several LCD displays that show exterior views as well as a pneumatic platform, will provide an immersive feeling.

City of Wind Energy

Play games to see how wind energy is used in the city, and you will get to understand why it is so useful and convenient.

No. 800001 Public Bicycle

Public bicycle service is one of Hangzhou’s eco-transit initiatives that advocate low-carbon mobility. The No. 800001 bicycle is the first one put into use as the program started in 2008. It was donated by the city government.

Trains’ Carbon Emission

You will play as a driver to drive a train from Shanghai to Hangzhou. Its realistic cockpit model, using multimedia displays, shows idyllic views along the tracks and triggers thoughts about a low-carbon lifestyle.

Rapid and Smart Transit

With the advances of technology and the progress of urbanization, transit is now becoming intelligent, rapid, and low-carbon. You will get educated on rapid bus system, rail transit, green wave, airport, integrated transportation hub, bicycle rental, ETC (electronic toll collection), traffic violation surveillance, road energy saving and noise reduction, water source protection, car plate recognition, car charging station, etc.

Boats’ Carbon Emission

The facility allows you to act as a captain to ride a boat on Qiantang River. The projected information on the screen explains why a low-carbon lifestyle is that important and necessary.

Cars’ Carbon Emission

The facility allows you to act as a driver to ride a car in downtown Hangzhou. Realistic views, high-definition audio, and a four-degree-of-freedom platform will help you acquire more low-carbon knowledge and improve the environmental awareness.

City of Solar Energy

Solar roofs, solar water heaters, solar street lights, etc. are common ways to effectively use solar energy in daily life. Play the games to see how solar energy is used in the city, and you will believe that it is so practical and easy-to-use.

West-East Gas Transmission

West-East Gas Transmission is a significant project of our nation to supply the abundant natural gases from the west to the east. It helps adjust China’s energy structure and industrial structure, drives economies in both east and west, improves people’s livelihoods in the Yangtze River Delta and areas along the pipeline, and helps control air pollution.

Bikes’ Carbon Emission

The facility allows you to ride a bike around the West Lake, either going solo or in pairs. The projected information on the screen explains why a low-carbon lifestyle is that important and necessary.

Low Carbon Technology Hall

It explains technologies that support a low-carbon lifestyle, such as basic science, internet of things, smart grid, optical mechatronics, new energy, etc.

Concave Mirror

The image formed by a concave mirror can be an upright, magnified, virtual one or an upside-down, reduced, real one, depending on the relationship between the object distance (the distance between the object and the vertex of the concave mirror) and the focal length. You can play the game to learn more about this phenomenon.

Light Up the Angel Ring

There is a flexible LED light strip (i.e., an angel ring) above the desk. When you place both hands in the hand-shaped metal pads, the LED will be lit up. The purpose of this game is to show that human body is an electrical conductor.

Wind Power

This is a sand table simulating windmills. Playing with the three rows of wind turbine models, you will understand the principles of wind power generation and that the amount of electricity produced is related to the turbine shape, wind scale, wind direction, etc.

Wave Power

Stir the sea water by controlling the handle, you will be driving the wave power generator called “Anaconda.” The LED ring on the desk will light up to indicate that the Anaconda is generating electricity. You can move the handle at different speeds to see how the brightness of the LED changes, since different wave movements lead to different amounts of power generation.

Tidal Power

Tide is a clean source of energy. The world’s largest power generation project to harness tidal power is in Zhoushan, Zhejiang provicne. With a capacity of 3.4 MW, it is connected to the State Grid, and its continuous operation time and amount of power generation are among the top in the world. This exhibit is a model of the project, and the screen above shows the real-time condition in Zhoushan. The gravitational force causes the ebb and flow of the tide, giving it huge kinetic energy. You can see how the tide drives the shaft to generate electricity. When the tide hits, the turbine starts to run and turn the gears, which drives the engine. The electricity caused by the generator is then sent to the shore via cables, where it is fed into the grid and distributed to lots of users. How big is 3.4 MW? Previously, the world’s most advanced and largest tidal energy project was only 1.2 MW. Therefore, the Zhoushan project marks China’s entry into a new era of tidal energy power generation.

ETC (Electronic Toll Collection)

You will get self-immersed in a driving scene, as the car, lanes, and voice prompts are realistic. You will learn how the core technologies of ETC, such as DSRC (dedicated short-range communication), RFID (radio frequency identification), and non-contact sensing, bring great convenience to our lives.

Space Telemetry

You can see how space remote sensing technology is used for observing and predicting crop yields and environmental problems on various continents. A spherical projection makes the experience fun and interactive.

Solar Tower

You can press buttons and see how solar mirrors (heliostats) change angles according to the Sun’s position, concentrate the sunlight reflection on the receiver at the top of the tower (the concentrating rate on the receiver can exceed 1,000 times), convert the solar energy into thermal energy, go through a series of conversion processes, and finally supply electrical energy. This kind of solar power is common in northwestern China.

Disappearing Figures

A semi-reflective & semi-transmissive glass has equal reflectivity and transmissivity to light, so that the reflection image of the object in front of the glass and the projection image of the object behind the glass can both be seen. Clever lighting and more settings will help you understand the optical properties of this special glass.

Virtual Dressing Mirror

You can play the game to experience technologies, such as visual recognition, somatosensory interaction, augmented reality, etc., and see how these technological advances make our lives intelligent and convenient.

Night Illuminated by the Sun

Control the handle to change the position of the Sun, and see how solar power illuminates the roads in the city.

Smart Supermarket

You can experience contactless checkout and other IOT (internet of things) technologies in this supermarket.

Smart Grid

You will learn China’s smart grid technology in this part. In a smart grid (aka “strong smart grid”), an UHV grid is the backbone, and grids at various levels are well coordinated. Supported by the communication information platform, it is automated and interactive, including power generation, transmission, substation, distribution, consumption, and dispatching at all voltage levels. It is a modern grid with highly integrated electricity flow, information flow, and business flow.

Smart Water-Saving Home

Using multiple water-saving technologies, a smart home water circulation system can be established, which reduces a lot of water consumption while ensuring daily use is not compromised.

Low Carbon Life and Low Carbon Future Hall

Low Carbon Life and Low Carbon Future Hall is divided into two parts (i.e., Low Carbon Life, Low Carbon Future). Low Carbon Life presents three sets of relationships: people and low carbon, family and low carbon, and the earth and low carbon. The benefits of low carbon living and the envision of low carbon future are demonstrated through the interactive and fun exhibitions.

Low-Carbon Wedding

It allows you to plan a low-carbon wedding from five perspectives, such as the transportation, costumes, invitation, and banquet.

Low-Carbon Home Design

Eco-friendly materials are increasingly popular in building construction and home design. You can design a home by touching the hand-shaped sensors in each module. The screen will show you how low-carbon the home is.

A Low-Carbon Journey

Low carbon means lower emissions of greenhouse gases, mainly CO2. Advocating a low-carbon lifestyle is essential. The exhibit provides more tips on living a greener life.

Low Carbon and Health

Many people associate low carbon with energy conservation and emission reduction. In fact, a low-carbon life also represents healthier, more natural, safer, and back-to-basics activities between man and nature. You will learn about the relationship between low-carbon and health from aspects of food, sports, etc.

Dream Factory for Sciences

There is a wealth of scientific knowledge related to wetlands, and it can be said that the wetland ecosystem is a “dream factory for sciences.” The awareness of wetland protection will be enhanced by learning about the structure, function, history, and culture of the wetland ecosystem.

Carbon Footprint of Cattle and Sheep

The carbon footprint of cattle and sheep refers to the greenhouse gas emissions caused by raising cattle and sheep. It’s not just human activities that emit CO2 and create a carbon footprint. In fact, methane, which is produced by cattle and sheep around the world, is also an important source of greenhouse gases. When you touch the mouths of the cattle and sheep, you will hear the sound, which is a simulation of the CO2 emissions when animals breathe. A 4-meter-tall cow model shows you the whole digesting process, from eating grass to releasing methane. Ruminants, such as cattle and sheep, produce methane because the lignin in the forage cells can only be digested with the help of bacteria in the stomach, and unfortunately, the by-product of this process is methane. Methane can exist in the atmosphere for 9 to 15 years, which is 21 times the greenhouse effect of the same amount of CO2. In recent years, the excessive demand for meat has led to a surge in the quantity of cattle and sheep, which has posed a great threat to the global environment. We need to reduce methane emissions through scientific farming, and we must save food and reduce food waste.

The Great Era of Carbon Trading

Excessive emissions of greenhouse gases have attracted the attention of mankind, and people are seeking solutions. You can learn about the influential climate change conferences in recent years and some of the agreements they have made. It helps enhance people’s awareness of climate change.

Garbage Sorting

There are four trash cans on the desk, each with a metal button. You will see different garbage on the screen and press the buttons on the right trash cans. A score will be given at the end of the game.

My Carbon Footprint

A carbon footprint is a measure of the amount of CO2 emissions directly or indirectly caused by an individual, organization, product, or country over a certain period of time. Whether you are eating, working, or sleeping, you are generating carbon emissions and a carbon footprint. You can answer questions on the screen by stepping on a dance mat to learn about their carbon consumption.

Tree Planting

Trees are our friends, as they absorb CO? from the air. You can stand in front of the screen, read information about behaviors and amounts of carbon emissions, choose the size of the tree (big or small) and the quantity of the tree (how many big or small trees to be planted), and step on the floor stickers (big or small trees) to “offset” CO?.

Low-Carbon Wisdom in Ancient China——Karez

Karez was called the “well channel” in ancient times. It is an irrigation system formed by a clever combination of vertical wells and horizontal channels. It is mostly found in Turpan and Hami, Xinjiang province. Such an underground structure not only prevents wind and sand intrusion but also reduces evaporation losses.

Low-Carbon Wisdom in Ancient China——Salt Making

During the Qingli and Huangyou Periods of the Northern Song Dynasty in the 11th century, small-diameter deep wells (aka “Zhuotong Wells”) appeared in the salt-making area in present-day Wutongqiao and Zigong, Sichuan province. This technology is a living fossil of salt-making, hailed as the fifth great invention of ancient China. The tall structure is typical low-carbon equipment, as it uses wind and sunlight to evaporate the water in the brine to concentrate the brine, save fuel, and improve the salt quality.

Low-Carbon Wisdom in Ancient China——Mulberry-Fish Pond

Mulberry-fish pond is a traditional Chinese farming method that combines mulberry planting, sericulture, and fish farming. It is a remarkable example of utilizing resources in the ecosystem: mulberry uses solar energy and synthesizes carbohydrates; mulberry leaves can be used to feed silkworms; silkworm manure can be used to feed fish; and pond mud can be a fertilizer for mulberry. Thus, mulberry, silkworm, fish, and mud become a virtuous cycle that is mutually enhancing. In this ecological cycle, there is almost no pollution.

Low-Carbon Wisdom in Ancient China——Watermill

A watermill was a widely used grain-grinding tool before the electric grain grinder was invented. Comprising a penstock, impeller, grinding shaft, grinding disc, grinding tool, and other parts, it grinds flour in a stone mill on the impeller, which is driven by water. The invention of the watermill greatly improved the efficiency of agricultural production in old times. This invention can still be found in many places. It is a testimony to ancient Chinese technological prowess.

Blessing the Earth

The Earth is the cradle of life and our home. Our survival depends on the environment. Nowadays, people’s environmental awareness is increasing. You can touch the flower or place texts or pictures on the touch screen to express your blessings to the Earth, advocating that everyone has a responsibility to protect the environment.

Standard Coal That Turns the Earth Around

Due to the varying calorific values of different energy types, the physical measurement units used are also diverse. To simplify calculation and comparison, these units are converted into a standard unit. You can learn more about the correlation between calorific value and standard coal.

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