Wednesday, September 23

Science

SummaryScience is a way of knowing about the world. At once a process, a product, and an institution, science enables people to both engage in the construction of new knowledge as well as use information to achieve desired ends. Science Literacy: Concepts, Contexts, and Consequences.

Science is based on research, which is commonly conducted in academic and research institutions as well as in government agencies and companies. The practical impact of scientific research has led to the emergence of science policies that seek to influence the scientific enterprise by prioritizing the development of commercial products, armaments, health care, and environmental protection.

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Advantages and Disadvantages of Hydro Energy
Science

Advantages and Disadvantages of Hydro Energy

Among all the types of renewable energy, hydro energy is one of the most prominent ones. Governments all across the world have set up mechanisms to harness hydro energy. India also has a huge number of dams, nearly 2000 dams across the country. Like all other forms of energy, there are various advantages and disadvantages of hydro energy. WHAT IS HYDRO ENERGY? Hydropower is the energy obtained from water. Running water through turbines convert the kinetic energy of water into mechanical energy. This is done by constructing dams on already existing water bodies. These dams create a reservoir of the water present in the water body. Water falls from a height which creates force to turn the turbines. Furthermore, tidal energy is another form of hydropower. Tidal power is the r...
Advantages and Disadvantages of Coal
Science

Advantages and Disadvantages of Coal

If there is one energy source that has stood the test of time, it is coal. It was used years ago to power engines, and it is used today to create energy to power whatever humankind needs it to power. However, the way that people perceived the advantages and disadvantages of coal led to the evolution of energy sources. WHAT IS COAL? It is a form of combustible sedimentary rock. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. It starts out as peat, which is formed by decaying dead plant matter. Peat turns into coal over millions of years because of the heat and pressure of deep burial. Coal forests are large deposits of this resource. They are said to originate in former wetlands, which were a large majority of Ea...
Advantages and Disadvantages of Natural Gas
Science

Advantages and Disadvantages of Natural Gas

Natural gas is one of the various kinds of fossil fuels that are available for use to humans. It is used for multiple purposes, like heating, cooking, and electricity generation. This resource is also used as a fuel and as a chemical feedstock in the manufacture of plastics. It has various advantages and disadvantages. WHAT IS NATURAL GAS? It is a hydrocarbon gas mixture. Its primary component is methane, but it also includes varying amounts of other higher alkanes. This resource also contains small percentages of carbon dioxide, nitrogen, hydrogen sulphide, or helium. When layers of decomposing plant and animal matter are exposed to intense heat and pressure under the surface of the Earth, natural gas is formed. This process takes millions of years to complete. Since it is...
Advantages and Disadvantages of Fossil Fuels
Science

Advantages and Disadvantages of Fossil Fuels

As the name suggests, fossil fuels are derived from the remains of dead organic matter. This organic matter has decayed over millions and millions over years, underneath the Earth’s crust. Under high heat and pressure over millions of years, it turns into fuel. People all over the world say that its advantages and disadvantages do not exactly match. They are harmful to the environment. WHAT ARE FOSSIL FUELS? They are fuels formed by the anaerobic decomposition of buried dead organisms. These dead remains are a source of power because they contain energy originating in ancient photosynthesis. Therefore, they contain high percentages of carbon, and range from volatile, to liquid, and non-volatile materials. Volatile materials have low carbon to hydrogen ratios; whereas non-vo...
Advantages and Disadvantages of Apple Cider Vinegar
Science

Advantages and Disadvantages of Apple Cider Vinegar

Apple cider vinegar is pretty common thing in households. It is used in soaps, toners, food, shampoos, and whatnot. It one of the most common ingredients for a home remedy, no matter what the remedy is required for. When conversations about the advantages and disadvantages of ACV are started, everyone always seems to list out the pros. Not many people know its cons. WHAT IS APPLE CIDER VINEGAR? ACV is essentially apple juice. The difference between apple juice and ACV is that ACV contains yeast which causes it to ferment. This fermentation is the process of the sugar in the juice converting into alcohol. In a second fermentation step, the alcohol is converted into vinegar by acetic acid-forming bacteria. Cider can be bought at a store and be made at home. There are two acid...
Advantages and Disadvantages of Breastfeeding
Science

Advantages and Disadvantages of Breastfeeding

The advent of technology has paved the way for the invention of a large number of products for newborn kids. These products have also allowed the parents to rest more, something that is desperately needed by new parents. However, one necessity of children that cannot be fulfilled by any machine is the need to be breastfed. Breastfeeding is the act of feeding newborns or young children with milk from the mother’s breast. It has various advantages and disadvantages, both for the mother and the kid. HOW LONG IS BREASTFEEDING NEEDED? Doctors recommend that breastfeeding begin within an hour of the baby’s birth. There is no set upper limit for breastfeeding. The child can be breastfed for as long as required. In the beginning, babies nurse (another name for breastfeeding) roughl...
Advantages and Disadvantages of Wind Energy
Science

Advantages and Disadvantages of Wind Energy

“Desperate times require desperate measures.” This is a quotation that most of the world is familiar with. In the current context, there are various situations all around the world that can be termed as desperate times. However, one problem that poses an equal threat for people all around the world and requires immediate action from a large number of people is climate change. Conventional fuels have been a contributing factor to the current climate crisis. Hence, there is a need to replace them. There are multiple options, like wind energy, solar energy, hydro energy, etc. HOW IS WIND ENERGY GENERATED? Wind power is generated on wind farms. These wind farms make the use of wind turbines that are turned by fast winds. The kinetic energy in the wind is converted into mechanic...
Advantages and Disadvantages of Solar Energy
Science

Advantages and Disadvantages of Solar Energy

Slowly and steadily, technology is providing the world with newer ways to produce energy that don’t contribute to our planet’s (on the current rate, imminent) death. Various alternatives exist for non-renewable sources of energy like fossil fuels, thermal energy, etc. Wind energy, hydro energy, geothermal energy are few of the many, many options that now exist. One of them is solar energy, which has many advantages and disadvantages. WHAT IS SOLAR ENERGY? Solar heaters, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis harnessed the energy of the sun to create electricity. Techniques that help in harnessing this energy are broadly categorized into two parts: active and passive. Active solar techniques such as pho...