carbon atoms form tightly bonded carbon crystals that are aligned more or less parallel to the long axis of the fiber. In some processes, two furnaces operating at two different temperatures are used to control the rate of de-heating during the carbonization phase. After the carbonizing comes t...
When the container is opened, the carbon dioxide expands to form a gas in the atmosphere. Carbon dioxide gas is heavier than oxygen, so it displaces the oxygen surrounding the burning fuel. This sort of fire extinguisher is common in restaurants because it won't contaminate the cooking ...
The brakes of a car remove this energy and dissipate it in the form of heat. A hybrid car can capture some of this energy and store it in the battery to use later. It does this by using a "regenerative braking" system. That is, instead of just using the brakes to stop the car, ...
How does carbon dioxide enter a plant?Photosynthesis:Photosynthesis is the process by which a photosynthetic cell (e.g. in a plant) takes in water and carbon dioxide and yields glucose sugar and molecular oxygen. Respiration, in humans for instance, conversely yields carbon dioxide and water (...
Plants convert carbon dioxide and water into sugar. 植物呼吸二氧化碳就像我们呼吸氧气一样。 当植物吸入二氧化碳时,它们会呼出氧气。 植物是地球上氧气的主要来源, 为人类提供足够的氧气。 一棵成熟的树可以为好几个人生产足够的氧气。 One mature tree can produce ...
In fact, the culprit that led to these disasters is our humanity. According to the study, we use electrical appliances or other things every day will emit large amounts of carbon dioxide, and carbon dioxide is a major factor in the temperature rise. If you reduce the use of electrical app...
Also, microgravity does some interesting things to fire. When you strike a match here on Earth, gravity pulls cool, dense air downwards as hot gasses rise up — resulting in a teardrop-shaped flame. But on the ISS, flames take the form of tiny bluish spheres. These have already revolution...
How many covalent bonds does carbon form in alkanes? How many covalent bonds are there in one molecule of carbon dioxide, CO_2? How many electrons are involved in a single covalent bond? How many electrons are shared in a double covalent bond? How many covalent bonds does oxygen form if ...
windmills, and hydroelectric energy. By opting for renewable energy sources, you can accomplish three goals. You can reduce your carbon emissions completely, and by extension, your carbon footprint. Furthermore, renewable energy sources lead to tremendous savings in the form of lower energy bills....
5. How does group intelligence emerge? 群体智能是如何出现的? 6. Can robots or AIs have human creativity? 机器人或 AI 可以具有人类创造力吗? 7. Can quantum artificial intelligence imitate the human brain? 量子人工智能可以模仿人脑吗? 8. Could we integrate with computers to form a human-machine...