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    HUMAN GENOME PROJECT
    April 25, 2003 - USA, China, France, Germany, Japan, United Kingdom

    The Human Genome Project to determine the sequence of chemical base pairs which make up DNA of the human genome consisting of 20,000-25,000 genes started in 1990 is published. The project started in the US with James D. Watson who was head of the National Center for Human Genome Research at the National Institutes of Health but over the next 10 years geneticists in China, France, Germany, Japan, and the United Kingdom all worked together on the project helping the project end two years earlier than planned. One of the most important aspects of this research is it available to available to anyone on the Internet and not owned or controlled by any one company or government.

    DNA THE "SECRET OF LIFE"
    April 25, 1953 - England

    Two Cambridge University scientists "James D Watson and Francis Crick" publish an article in Nature Magazine explaining the structure of DNA and that DNA is the material that makes up genes which pass hereditary characteristics in all life from one parent to another. They conclude that it consists of a double helix of two strands coiled around each other and could even be considered the "secret of life".

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    about Eyesight Myth and Fact

    Myth: Staring at a computer screen all day is harmful to the eyes. Fact: Spending the day staring at a screen can tire or strain your eyes, but it will not hurt them. Make sure lighting doesn't create a glare on your screen. When spending long periods at your keyboard, take a break now and then to rest your eyes to reduce fatigue. Also, don't forget to blink. Your eyes need to stay lubricated to feel comfortable. Cancer Facts & Figures
    about Besides Lung Cancer

    Besides lung cancer, tobacco use also increases the risk for cancers of the mouth, lips, nasal cavity (nose) and sinuses, larynx (voice box), pharynx (throat), esophagus (swallowing tube), stomach, pancreas, kidney, bladder, uterus, cervix, colon/rectum, ovary (mucinous), and acute myeloid leukemia.

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Regardless of whether you're a skilled heating technician or perhaps are interested in the Heating and cooling marketplace then this article may be for you.

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Whether you are an experienced heating technician or simply just have an interest in the HVAC sector then this write-up is designed for you. It'll provide you with a backdrop to the HVAC sector to make sure you will be more aware about the areas it encompasses. The first aspect we are going to take a look at is the topic of heating. What exactly do we mean by heating? It does depend upon what you will be heating up. As an example if you are looking to warm up the front room in your home on a cold winters night then you may just need a portable heating device. However if you are looking to heat a larger area you might need to use something else entirely.

Many buildings use a central heating system to supply heat. This approach might use a central heating boiler, heat pump or possibly a furnace. Heat created will then be dispersed using a system of piping or ducts. The dispersal network will be chosen dependant upon the building that is being heated up and the type of central heating unit in use. The second letter in the abbreviation HVAC is V for ventilation. Ventilation comes in various forms but is going to fit in 1 of 2 areas. Either forced (also called mechanical) ventilation or natural. Mechanical ventilation can be achieved through the use of fans to either remove air or to inject fresh air in to a room.

Natural ventilation is much easier to achieve, believe it or not as simple as opening up a window. However typically this will be accomplished by either a vent or even air bricks. One benefit of natural air flow is it can help to eliminate the spread of airborne diseases such as the flu virus. Another good rationale to implement natural ventilation is the fact that it truly is inexpensive plus relatively easy to operate. Ventilation is essential in establishing a heating system. The explanation for this is whenever there is very poor ventilation then there could be a build-up of gases.

This might trigger smaller challenges including ineffectiveness in the heater or larger challenges., for instance a large amount of carbon monoxide might cause poisoning or possibly loss of life. Last of all we come to the air conditioner component of HVAC. Air conditioning may be put in position with fans but a majority of solutions operate in the same basis as the air-con inside your car. This process usually operates by using a special fluid in pipes. As this liquid warms up it'll take in the heat when it turns into a gas. This'll then travel around the system as a gas to become re-condensed, starting the complete process once again.

The fantastic thing about some air conditioning units is this technique can be altered to produce heating instead. Of course this will not work with all air conditioners but it's a feature to be familiar with. So there you have every one of the aspects that comprise HVAC, discussed in a little more detail. However this is merely an outline. Next, to be able to learn even more details regarding

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    A leading European manufacturer of gas-fired radiant heaters and supplier of warm-air systems and air curtains.

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