Pencil – The Different Types Used In Recent Times

In the recent times, though time is very important, as pens and computers are used throughout the world, pencils are also used in many professions like drawing and preparing drafts. Usually, pencils are used by students to complete school assignments or filling forms and creating sketches etc. Some problems that people face while using pens are the smearing or leakage of ink and while correcting a mistake.

The discovery of graphite in the 15th century marked the beginning of the pencil industry. It was found that graphite could be used to create a mark and it can also be cut into slates. To write, they used to wrap the graphite in sheepskin and then carry on their work so that they do not smear themselves.

Nowadays, the modern pencil can be divided into several types based on the professions:

China Marker: It is also known as wax pencil and is made of colored wax. The importance of this pencil is that it can write on any surface – mainly used for making on hard, shining surfaces such as porcelain, ceramics, and glass etc. It is used by mainly traditional artists.

Carpenter Pencils: They are easily recognized by its rectangular shape and elliptical cross-section. Since their shape stops them from rolling away and because of their hardness, builders use it for marking on hard and rough surfaces such as wood, stone and concrete etc.

Charcoal pencils: It leaves a very dark black mark when written and is used primarily by artists for making sketches.

Water color pencils (Aquarelle): used for giving colors, they are washable and produce an effect identical to water color paints.

Pastel Pencils: They are used mainly for marking on dark papers and their color is usually white resembling chalk.

Colored pencils: They are prepared by mixing graphite and different colors of wax. They can be used for portraying various colors.

Cosmetic pencils: They are mainly used for make-up purposes such as eye or lip-liner.

Indelible pencil: The pencil which leaves a permanent mark and cannot be erased.

Woodless pencil: The graphite is cut into rods and they are enclosed in a plastic casing (medium HB to 9B).

There are two rating systems based on the hardness:

The European system has divided the rating into two parts. If they are soft they are classified with a B, where as if pressure has to be applied to make a line, it is H. 9B is the softest while 9H is the hardest.

The soft pencils are smooth to write with and they make thick black line which can make a blurred mark. They are distinguished by a marking labeled as “B.” These are usually soft and they are used by artists to create drawings and for adding shading to images. “2B” to “4B” is usually used for rubber stamping or stamp carving projects.

Hard pencils (H to 6H) with the letter “H” which means ‘hard’ are used for making fine lines. For making a dark impression or line, pressure is required.

The US system of rating uses numerical pattern for pencils. They rate it as: 1, 2, 2 ½, 3 and 4.

Uses of Pencils in History:

Thomas Alva Edison used to keep a pencil in his pocket and a small notebook to jot down ideas and later correct them.

Leonardo da Vinci, the famous sculptor, artist, philosopher used pencils for making drawings.

The first advertisement for the sale of pencils can be found in the paper “Pennsylvania Gazette” published by Benjamin Franklin in the 17th century.

SathyaNarayana B has done Post Graduation and is interested in writing articles on martial arts, travel, history, pet care, IT related trends, herbal remedies and daily health tips.

 

Choosing The Right Treadmill For Your Home

Would you like to set up a workout station in your home? Well, a treadmill can be among the first machines you must invest in. When your goal is to become trimmer and healthier, walking as well as running are just 2 of the activities that can help you achieve it. Although you can walk and run without using a machine, you must know that investing in a treadmill will allow you to exercise safely and easily as opposed to going out and running at the track or jogging paths. Such health equipment will provide you with a reduced impact as well as safe workout, burning a great amount of calories within just a short period of time.

It is also a wise idea for you to check other exercise machines before making a final decision. Consider reading elliptical machine reviews, checking out exercise bikes for sale, and the like. However, if you choose to walk and run, then consider choosing the right treadmill for you.

Buying Tips

Look into the safety factor as well as performance level of the machine. You must pay attention to cushioning. You must know that this is the shock-absorbent layer below the belt that will efficiently reduce the impact your feet will make on the machine. Be reminded that with inferior cushioning, your running experience will be less comfortable and you might even get injured. It is very important for you to determine if the cushioning system of the treadmill is shock-based, spring-based, or cushion-based. If it is shock-based, you have to check out its adjustability; if spring-based, check out its rebound rate; and if cushion-based, you must not get anything that does not have 8 points.

You must check the motor. You must know that the motor will be rated based on horsepower. However, horsepower rating are oftentimes evaluated by peak performance, continuous duty, and intermediate duty. The most telling rating will involve continuous power since this will refer to the capacity of the motor to run for 24 hours without slowing down. Prior to buying a treadmill, it is good for you to know its peak power. However, if such equipment is for home use, the staying power is more relevant.

Determine the right size. In terms of a home treadmill, size really matters. When it is a personal one, you can get one that is most suitable to your needs. But in case you will be sharing, you have to ensure that the belt is long enough to fit the stride of taller people and the machine has ample room to move.

Why Detoxification Is Important and How It Can Lead to Greater Health

Detoxification may be the key to you feeling better and having greater health. Here is why it’s so important. These days we are exposed to thousands of chemicals in the air and in our food, in our water and in consumer goods. Currently, around 100,000 chemicals are registered for use on the market and 1,000 are being added each year. Basic physiological processes such as digestion and cellular metabolism also produce byproducts that we need to eliminate.

Although our bodies are equipped with natural defences that help us deal with these toxins, the organs and organ systems we rely on to filter and eliminate waste and contaminants, – primarily lungs, liver, colon, kidneys, skin, lymphatic system, and blood – become sluggish under the load of our increasingly toxic world. When our systems get plugged up, the backlog stays in the body, builds up further, and can contribute to short- and long-term health problems. In 2006, Environmental Defence, an environmental watchdog group, provided tests for families with children as young as ten, and found that their bodies contained traces of 46 of the 68 toxins they tested for, including carcinogens, hormone disruptors, respiratory toxins, reproductive developmental toxins and neurotoxins. The results show that our bodies’ natural processes of elimination need assistance.

Some signs of increased body toxicity are constipation or diarrhea, bad breath, frequent headaches, frequent cold and flu, low energy level, skin problems, sensitivities, mood swings, aches and pains, and sleep problems. If you experience these symptoms, it’s time to think about detoxifying your body. For an effective detoxification it is important to reduce the intake of the harmful substances that tax the body and maximize the supply of nutrients required to optimize the body’s detoxification pathways. To support the detoxification process, you need to stop smoking and consuming alcohol, start exercising, eat organic food, eliminate caffeine, drink more water, consume more fruits and vegetables and cut down on sugar and salt. It is also a good idea to reduce the amount of food you eat.

There are some natural remedies which promote detoxification process. For example, milk thistle and dandelion stimulate the liver and improve its function. Probiotics create healthy bowel condition, decreasing toxic load. Zeolites (naturally occurring volcanic minerals) trap toxins in their cage-like structure, reducing the amount of toxins circulating in the body.

Detoxifying will improve your appearance, regulate your sleep patterns, and boost your emotional well-being. It will increase your vitality and your underlying health and may also help you lose weight. Some other benefits of detoxification are improved mood and inner harmony, increased energy level, boosted physical performance and improved libido.

6 Facts About Courses Everyone Thinks Are True

Choosing Which Medical Training College Programs Suit You Better The fast growth of the health care industry is becoming more and more visible as days pass. In fact, a lot of job opportunities are being offered, particularly to trained individuals. These career opportunities are not only for doctors and nurses. There will be jobs for support personnel as well. Medical assistants tend to have a slightly similar function as that of an administrative assistant in most traditional businesses. Some of the tasks that both administrative and medical assistants can do includes management of file and office supplies including communication via phone call and email. In addition, medical assistants should possess necessary knowledge and skills required of them. You cannot expect every aspiring medical assistant to immediately become a professional in the health care field. Normally, you will be required to go through a program where you can learn how to handle patients, process medical insurance claims and collect bills, among other procedures.
Practical and Helpful Tips: Programs
On the road to becoming a medical assistant, you will come across a number of program options. Your one option would be to acquire a certificate by completing necessary training. You can also decide to receive college credits and earn an associate’s degree. If not, you can also look for health care centers that offer on the job training programs.
The Ultimate Guide to Colleges
There are also a number of vocational programs for medical assistants. Compared to other options, this type of program is short-term, lasting to a year or less only. When under the vocational program, you will be going through classroom learning that’s usually followed by laboratory experience. You might want to take advantage of this program option if you prefer low-cost training. In several community colleges, medical assistant programs are being offered as well. This program may last for a year or two, depending on your preference. Through this program, you can be familiar with every detail involved in medical assistance. The associate’s program may also serve as a preparatory course in case you plan on becoming a nurse later on. Along with this program, your college may also have a career center or a number of connections which can help you easily land a job in the future. A career in medical assistance is quite in demand. For this reason, some hospitals and health care centers take in medical assistants even without experience to go through on the job training. Through this option, you can easily get ample direct experience on medical assistance. These are just a few of the many medical training college programs that you may consider. By looking into your needs, your goals and your budget, you can easily compare your options and find out which one suits you better.