Fuel cell

Today, we are facing the environmental crisis of global warming. A major factor that is contributing to this is the use and burning of fossil fuels such as coal, natural gas, and oil. Through the process of coal burning, Carbon Dioxide is formed as a result, which is one of the major causes of the Greenhouse effect. With the Greenhouse effect, the Earth’s average temperature rises, causing ice caps to melt, which is an effect of global warming. To put a stop to this, our population needs to…

and sheets of semiconductors (SEIA). Energy from the sun excites electrons and causes them to “free themselves” and run through a circuit, powering electronic devices along their way (SEIA). Wind energy is generated in a close fashion to how fossil fuel power plants gather their energy. In coal fired plants, large fires cause the expansion of air. This causes a turbine to spin and generate energy. In the unmistakable pinwheel design of a wind turbine, air rushes through the blades of the…

every part of their life. The energy consumption is expected to grow about 60% in the next two decades throughout the world. As a large part of the total energy is provided by fossil fuels, the future of the world economy growth is highly dependent on whether the ever-increasing energy demand can be met. Fossil fuels are not ever lasting and economic crisis may happen if world economy will heavily dependent on them in future. Electrical Power is one of the most critical components of…

The use of renewable energy can lessen the dependency on import of fossil fuel from other countries and stimulate the development of new and most efficient technologies; however, there is some disadvantages in unlimited sources. The installation and maintenance prices are higher than non-renewable. Eolic energy demand a large…

What steps can we take in our lives to reduce Global Warming in the United States? When the average temperature of our planet gradually increases over time we call this global warming. Global warming is affecting the oceans, land and wildlife. The ocean temperature is increasing causing damage to our coral reefs and melting the polar ice caps at a much faster pace than ever recorded before. It may seem like only larger measures enacted by the government can be taken to prevent global warming,…

efficiently change the internal organization of the cell, and capture organelles through the cytosol. Intermediate filaments are made up of the protein keratin. Their primary function is to strengthen the internal structure of a cell. Microfilaments are the smallest among the three cytoskeletal filaments. They consist of protein actin. Microfilaments are dynamic structures that can rapidly disassemble or assemble themselves, and thus microfilaments enable the cell to move efficiently. Cilia and…

In Aristotle’s view, everything in this world can be categorized. Living beings include plants and animal. The plant has nutritive soul and the animal process both nutritive soul and perceptive soul. If we discuss animal further, we can divide animal into rational animal, which is human, and non-rational animal. The essential feature of “being an animal” is perception. From the Aristotle Introductory Reading: “413b2: What makes something an animal is primarily perception.” Perception is…

Genetic Engineering is the modification of an organism 's genetic composition by artificial means, often involving the transfer of specific traits, or genes, from one organism into a plant or animal of an entirely different species. With this new, rapidly growing, technology we are now able to do things that we once thought were impossible. In Ethics and the New Genetics, the Dalai Lama addresses problems that we need to consider as we continue to explore this microscopic world that we have…

within a cell, they can be expressed in response to external stimuli. This external stimuli can be sub lethal heat shock (SLHS) hence the name heat shock proteins (Baneyx, F. 2008), this stimulus causes more of the proteins to be produced (Pugsley, A. 1989). In addition to being expressed due to SLHS they can also be expressed in response to amino acid analogs, heavy metals…

In the case of a missing limb, the scientists would take stem cells from the patient and us it for the base of the new limb. If Humans mastered cloning then they could use that technology and the patient’s stem cells to construct a new arm, leg, ear, or whatever was missing without worrying too much about the patient’s body rejecting the foreign limb. In the case of organs the process would…