Solar Energy - The Most Important Non-Conventional Energy Source

Sun shines on the same level and intensity on the homes of poor and the rich. It is free of cost and in abundance all over the world, all year around - even during cloudy days, we receive some amount of sun rays. The way coal is used up throughout the world to produce electricity, there would come up a time when it would be a history. So all mankind would have to depend on for other means of electricity is nuclear power and available renewable energy sources such as sun, wind and biomass. The solar radiation that reaches the earth is one of the source of energy available to us and is freely produced. It also happens to be one of the most important non-conventional energy source. Solar energy is termed as one of the important energy source because directly or indirectly it can be converted into various forms of energy such as heat and even electricity. And hence solar energy is one of the most valuable heat source and an electricity source. It is also referred as a renewable energy because being a natural resource, it has the capability of being regenerated over and over again without any chances of being depleted or diminished.

Solar Energy Safe for the Planet Earth

Solar energy or solar power is not harmful for planet earth. First of all, while producing solar energy from the sun, no pollutants are emitted unlike thermal energy.When thermal energy is produced from burning coal or natural gas, pollutants are produced. This is not the case with solar energy and it is a clean energy source. And beside being a free energy source, solar energy also is forever unlike fossil fuels which will get depleted and would exhaust completely in few decades. The use of solar energy could never destroy the environment. The solar radiation which are produced from the sun get absorbed within the earth, sea, oceans and the atmosphere around us. This results in the rise of temperature and heat production. The heat and humidity produced rises to high altitudes where due to the condensation process, clouds get created. These clouds bring us rain and thus, bring water back to earth's surface. As water is important for the life on earth, there does not seem to be any harm from this non-conventional energy source.

Photovoltaic System

Also referred commonly as PV system, Photovoltaic system is a power system which is designed to produce solar power or electricity directly from the sunlight. This system includes various arrangements of components such as solar panels, solar inverter, cabling, mounting and other electrical accessories which help to trap sun rays and convert it into solar power. Photovoltaic originates from the Greek words 'phos' which means light and 'Votaic' named after the Italian physicist - Alessandro Volta. Alessandro Volta, fondly known as Volta was a scholar in the study of electricity. He is credited to be the inventor of electrical battery. Photovoltaic system thus produces clean and reliable electricity without the use of fossil fuels. The electricity produced by using solar power through photovoltaic system can be used in domestic lighting, street lights, village electricity set-up, water pumping, water filtering, water heating, telecommunications, watches, railway, road signals as well as space stations. Since photovoltaic system could be called as a relatively new concept, solar energy is not widely used yet. Also being a complete new technology, the whole process of setting up solar plant is expensive compared to other sources of energy.

Solar Cells

Solar cells also known as solar battery or photovoltaic cells are electrical devices which convert the light energy into electrical energy using the photovoltaic system. The solar cells or solar battery contains semiconductors with silicon alloys. They are also called a PV devices and are used in major proportions to power satellites and solar cars.

Solar Thermal Power Plants

Solar Thermal Power Plants are constructed to produce large amounts of solar energy. This is done by planting huge solar panels which heat up water into creating steam and then the steam is piped into huge turbines to produce electricity. This electricity generated is transmitted over the power lines.

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What is Thallium

Named after the Greek word 'Thallos', Thallium is a soft, grey metal. It is a poor and malleable metal, soft enough to be cut with a knife at room temperature. Thallos means a green twig and thallium was named so for it's green spectral line. Thallium is highly toxic in nature and hence needs to handled with care. Thallium is very shiny though it dulls quickly in presence of oxygen. With the process of oxidation, thallium turns bluish grey and resembles lea. I order to prevent the oxidation of thallium which ends discoloring it, thallium has to be stored in mineral oils. Thallium is a toxic metal and should never come in contact with skin.

Uses of Thallium

Thallium is mainly used in electronic industry. Out of 70% of it's annual global production is used up in electronic industry. Rest of it is used in pharmaceutical industry for the production of nuclear medicine and also by the glass industry. Thallium is also used for the treatment of ringworm and other skin infections despite of it's toxic nature. Thallium sulfate is effectively used as a rodent killer and an ant killer as it is odorless and tasteless. 

Expansion of Idea - We are a Part of Environment, Not Apart from Environment

Whenever there are news about environment degradation, global warming or various pollution problems, we tend to feel sad and then forget about it, as if it is not our problem. We curse others for the problems they create to the environment and try to play safe as if we are not part of it. We leave the solution to the problem on the government and blame it for not doing anything. Thus we fail to realize that it is not just the government who should try to solve the environmental problems, but we too are part of the environment and not apart from it.

We, as living beings maintain a symbiotic relationship with the environment. Our actions affect the environment and which in turn affects us back. Whether we would exist or not is totally upon the different aspects of the environment. And hence we play an important part in keeping our environment balance. If environment loses its balance, we are badly affected, our existence is badly affected and hence we should actively participate in playing our part in safekeeping our Mother Nature. It is time that we realize our existence totally depends on the environment and by assuming that we are apart from it, we are actually threatening our own existence. 

How do Eyes Get Their Colour

No two people in the world have the exact same eye colour. Eye get its colour from the melanin pigment which is present in the iris. Usually when a baby is born, there is an absence of melanin and hence the baby has a blue coloured eye. The melanin is produced by the melanocyte stroma only within 6 to 36 months after birth of a child, and thus the child get its permanent eye colour then.

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Very little or complete absence of melanin gives an eye it's blue colour. Adding more melanin than regular makes an eye green. Little more melanin and the eye appears in different shades of brown or hazel. The exact amount of melanin present within your iris is determined by once genetic factor.

Since melanin is not repeatedly produced by one's eye, our eyes may get little lighter or darker as time goes by. Eye colour also changes with factors like stress, medication, health problems and sickness. As we start aging the eyes increase melanin production which also can cause change in the eye colour. 

Career As A Nurse

If the term 'compassionate' defines you and you have the willingness to serve the ill, then nursing is just the profession for you. A career in nursing is always in demand. given the rise to innumerable health care establishments, institution, orphanage and old age homes. Even the tremendous growth of private practitioners and small nursing homes boosts for the demand of trained nurses. Nurses in a wide array, shoulder a big responsibility and play a significant role in healthcare profession. The responsibilities of a nurse is more than any other career or profession could demand. And hence only those who have immense will power, dedication and spirit to serve as well as those who are ready to work for long hours in severe stressful conditions should opt for this career.

Responsibility of a Nurse

A nurse tends to shoulder a great responsibility as he or she play a significant role in healthcare profession. Few of these responsibility includes:

- Taking bedside care and nursing patients by administering medicines and prescribed treatments.

- To maintain day to day records of each patients.

- To carry various duties to be performed by the nurse.

- To supervise the arrangement of the medical equipment and to monitor the performance of each of these equipment.

- In specialty hospitals, nurses need to acquire complete knowledge and experience of particular specialty they are working for such as cardiac care, pediatric care, orthopedic care and so on.

- A nurse should be competent and aware of the latest technological development and advancements in the medicine fields.

Aptitude for Being a Nurse

The career as a nurse is adept for those who can call themselves patient, responsible and dedicated. Since the profession of nursing calls for loads of hard work, pressure and stressful conditions; being physically fit is a must. Being watchful, alert, compassionate and tactful are few of the qualities the nursing profession demands for. A nurse needs to master the efficiency on how he or she an handle a patient and yet be professional. When coming to care for patients, a nurse should still be able to identify the thin line between the instinct to serve without getting emotionally attached. Being pleasant in all situations is an important criteria of being a nurse.

Eligibility for Being a Nurse

After completing 10 + 2 in Science field, a person can apply for Bachelor in Nursing. Though many opt for Diploma in Nursing, which is of a duration of one year to 18 months, yet a Bachelor's Degree is a must for those who wish to pursue a Ph.D in Nursing. A Ph.D in Nursing can be pursued only after the successful completion of Post Graduation in Nursing. Certain specializations can also be opted for, if you have some specialties particularly in mind. For example a student can opt for a specialization in Neonatal Nursing, Public Health Nursing or even in Psychiatric Nursing as part of their Ph.D program. One more specialization a person can opt for is the Industrial Nursing, wherein a student learns more about nursing and being in assistance of the industrial physicians. What an Industrial nurse learns is more about the knowledge of Preventive measures and first aid that could be provided to people who have met untoward mishaps or accidents happening within the industrial premises.

Scope for a Nurse

After successful completion of their nursing course, a person can seek employment with the nurse career choices as a Nurse Practitioner, registered nurse or a nursing assistant in many government as well as private healthcare centers, nursing homes, orphanages, schools, sanatoriums, old age homes, industries as well as armed forces. A nurse can also seek employment with organizations such as Red Cross Society or NGOs depending upon what direction her heart is set out and also how she wishes to contribute to the society. The profession of nursing has no expiration date, as health and medical advancements would always hold the topmost priority for the mankind. 

How do Fruits and Vegetables Get Their Colour

Don't we always wonder how carrots could be red or orange, eggplant are purple and grapes or lush green! Let us understand how fruits and vegetables get their rich colours. The colour of the fruits and vegetables are caused due to the pigment which are found in them. Most of these pigments are mostly chlorophyll which gives the green colour, carotenoids which give the yellow, orange and red colour and anthocyamins which give the fruits and vegetable various colours such as blues, purple and reds.

The carrot gets it's orange colour due to the presence of carotenoid pigment, carotene. Carotenoid present in the tomato namely lycopene gives the fruit it's red colour. The red berries get the red colour due to the pigment anthocymins. The red beet get it's red colour from the pigment betaleins. And the green leafy vegetables get the colour due to the pigment, chlorophyll.

These pigments present in the fruits and vegetables contain nutrients. These nutrients are beneficial for us and hence eating a particularly coloured fruit and vegetable does benefit us some way or the other. When we consume red coloured fruits, they protect our cardio-vascular system. The benefit of eating orange and yellow fruits and vegetables is it's contribution to the overall well-being of our eyes. The green vegetables work as a natural detox and the purple fruit and vegetables work as a reinforcer of an immune system. 

Importance of Ethics for Kids

Apart from good education and knowledge, ethics helps us to make choices that shape out our beliefs and allows us to supervise the decisions that we take throughout our life. Importance of ethics in life of kids need to be understood well. Ethics help us to have conscience and shouts us the reality loud and clear that we are mere human with heart and soul. Ethics similar to that of education, never leave us. It helps to govern us in every sphere of our life. Ethics also help us to create a ray of hope when depression or disillusionment tries to seep in. Ethics help us to rise above all odds even in the realm of hopelessness. Your behavior and personality is demonstrated by the way you perceive ethics.

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We usually try to differentiate ethics from moral and value; wondering what is different about them. Values are the standard rules that we set to make for our decisions. It help us to understand what is right and what is wrong. Values help us to decide what is more valuable for us and what is not. This helps us indirectly to make the right choices. Morals help us to judge a person or his character. On a broad spectrum, moral has wide influence on us than values. Ethics on the other hand is a combination of both moral and values which helps us to make set of rules, embraced by group of people. A person with lack of ethics or moral values could classify him as a living being without heart and soul.

Our thought process usually is defined by it's ability to make certain decisions based on the questionnaire which include -

- How not to be prejudiced against people.

- To have a sportsman spirit.

- To be truthful.

- To have compassion not just for humans but every living being around us.

- To avoid bad language.

Our ability to answer these questions helps shaping our thought process and make us who we are. So does the lessons of the value education which we learn in classrooms. Overall these things help us to sculpt our own identity.

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Ethics and Value Education

Children often skip their value education classes or substitute them with other pursuits such as hobby classes or sports practice or even prefer spending time learning academics. But what they tend to forget by doing so is how they are actually missing on the most important lessons of life, which could help them carve their own self. The importance of values education needs to be understood by children as well as their parents. Value education helps a child to construct a solid base of ethics which can provide him an insight of being right about his decisions. Value education helps a child to judge rationally in every stage of life including even smaller decisions of right or wrong such as -

- Whether it is right to bully someone?

- Whether it is right to cheat in exams?

- Whether it is right to lie to parents and teachers?

 Whether it is okay to gain success by unfair practices?

When a child is about to answer all these questions fairly, then the lessons of value education has reaped it's benefits.

Ethics and Moral Values

A child is a good child when he is capable to illustrate all the moral values inculcated in him. These moral values could include values of -

- Respect

- Responsibility

- Integrity

- Compassion

- Determination

All these above mentioned values help a child to make ethical and righteous decisions in life. Thus moral values play an important role imbibing ethics in a child's life. Whenever a child is in a position of making a decision, how big or small, he would ask himself first - 'Is this the right thing to do?' When a child makes decisions based on this simple question, always remember that not one person will have the power to influence him. The decision of this child would be completely based on his moral conscience.

Lack of Ethics

Thus we understand that ethics help to carve a child's identity and allows to shape his own beliefs. But wonder what happens with lack of ethics in kids! Lack of ethics happen when value education and moral values are neglected. Thus lack of ethics may inculcate negative impact on a child's conscience. The capability of making right decisions is completely depleted, which further influences the criminal tendencies. Thus lack of ethics in kids could result in major unrest and downfall of the society.

Ethics - Role of Parents and Teachers

And hence to get things right, it is imperative to introduce moral values and value education in a child's life, right from the beginning. It is important to teach ethics in primary school by introducing value education and moral values. And introducing them as part of the current education system is not enough; but parents too can play an important role in inculcating ethics in children. A parent too can start early helping a child understand the importance of ethics and moral values. An authoritative figure such as a father, mother or teacher are been looked upon as role models by the kids. And hence their perception of right or wrong can heavily measure upon a child. Thus unknowingly actions and decisions of parents could leave a remarkable impression on a pre-conventional level in a child's life. If you as a parent show compassion toward animals, a child learns it too. If you respect others, a child grasps that value too. If you spread love, a child is bound to do the same.