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TODAY IN HISTORY

    THE FIRST IRON LUNG
    July 29, 1927 - United States

    (Electric Respirator) was installed at Bellevue hospital in New York for the post war polio epidemic. The first iron lung was developed at Harvard University by Phillip Drinker and Louis Agassiz Shaw built with two vacuum cleaners. The iron lung is a negative pressure machine which surrounds the patient's body except for the head, and alternates a negative atmospheric pressure with the ambient one, resulting in rhythmic expansion of the chest cage (and thus inhalation) in response to the negative extra thoracic pressure. During periods of ambient extrathoracic pressure, the lungs deflate. This type of machine is rarely used today.

    AMERICA'S FIRST ASPHALT PAVEMENT
    July 29, 1870

    Was laid in Newark, N.J. Previously, coal tar was used for many pavements laid in the 1860s. The first recorded asphalt pavement in the U.S. was a sand mix placed in front of the City Hall in Newark, N.J., in 1870. Edmund J. DeSmedt, a Belgian chemist (who became the inspector of asphalt and cements for the District of Columbia) held a U.S. patent for this asphalt paving method, granted on 31 May 1867. In that century most roads, even in cities, were wide dirt pathways, severely affected by weather. Smooth surfaced asphalt roads originally were for the benefit of bicyclists. By 1904, only 141 miles were surfaced, but commonplace by 1916. Natural asphalt deposits were originally used, but almost all of the asphalt used commercially is now made from petroleum.

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    by Theodore Roosevelt

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  • The Revolution
    by John Adams

    "...The Revolution was effected before the War commenced. The Revolution was in the minds and hearts of the people; a change in their religious sentiments of their duties and obligations. This radical change in the principles, opinions, sentiments, and affections of the people, was the real American Revolution...."

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  • Harvard Medical School
    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.

Extended Wear Contacts :

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ARTICLE INFORMATION :

Over the last several years, there have been many improvements in contact lenses. As a whole, contacts are the best alternative to wearing glasses. They are comfortable, don't hang off your face, and above all, they are affordable.

ARTICLE CONTENT :

Over the last several years, there have been many improvements in contact lenses. As a whole, contacts are the best alternative to wearing glasses. They are comfortable, don't hang off your face, and above all, they are affordable. Among the many types of contact lenses available on the market, are the extended wear contacts. There are many benefits to these contact lenses, which we will go over.

Extended wear contact lenses are convenient, possibly even more so than the other types of contacts. With most types of extended wear lenses, all you have to do is keep them clean, put them in, then go about your normal day. You don't need to clean them near as often as other types of soft contact lenses. Once you clean them they should last you for a long time before they need to be cleaned again.

One of the best attributes to extended wear contact lenses is the fact that they are very comfortable. They are easy to put in your eyes, and most people dont even notice that they are wearing any contact lenses at all. Even though some people may experience discomfort with them, the majority of those who wear them find them to be very comfortable.

When compared to other types of contact lenses, extended wear lenses are very safe. If you take the necessary time to take care of them as you should, they won't harm your eyes in any way. If you use them correctly, they will serve you just fine. Keep in mind, you also need to visit your eye doctor on your regular appointments, as your eye examinations are still very important “ even though your contact lenses may not affect you or bother you at all.

Even though most extended wear contact lenses aren't high in price, you should still look for the best deals. There are several manufacturers out there who offer these types of contact lenses, some offering better deals than others. On the Internet you can find a lot of deals from many different manufacturers, many of which won't set you back a lot in terms of money. You can also find extended wear contact lenses locally, although the Internet is the best way to save money.

Before you decide to buy a pair of extended wear contact lenses, you should make sure that they are right for you. When you get fitted for your contacts by your eye doctor, be sure to ask him about these types of contacts and whether or not they are best for you. If you take the time to research what is best for you and look into your options “ you'll find that extended wear contact lenses may indeed be the best contacts for your money – and your health.



Source : PLR

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