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    WIRELESS TELEPHONE AT WHITE HOUSE
    November 21, 1919 - White House, U.S.A.

    President Wilson used a radio telephone set up on the south portico of the White House to direct the maneuvers of a dozen army airplanes flying over the Potomac river several miles away. His telephoned directions went direct to the flight commander in the air. The instrument was similar to those used by American aviators in France in the latter part of World War I. Col. C. C. Culver actively developed the equipment. He began the project in Aug 1910. No new invention was needed, only adaptation and adjustment of existing techniques. By Aug 1916, he was able to send a radio telegraph signal from a plane. Enlisting expert help from the telephone companies, by Oct 1917, voice messages could be send between a plane and the ground. The system was put into service for military wartime use.

    EDISON'S PHONOGRAPH
    November 21, 1877 - New York City, U.S.A.

    Thomas Edison announced his invention of his "talking machine" - the tin-foil cylinder recorder that preceeded the phonograph. He appears to have envisioned it as a business dictation machine. In Sep 1877, he wrote that its purpose was "to record automatically the speech of a very rapid speaker upon paper; from which he reproduces the same Speech immediately or years afterwards preserving the characteristics of the speakers voice so that persons familiar with it would at once recognize it." The indented tin foil, however, would survive only a few playings. By the first public showing of a phonograph, which took place in New York City in early Feb 1878, its practical applications had not yet been realized.

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How To Get Healthy Teeth :

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Keeping your teeth strong and healthy is really important mainly because it does not only help you chew and speak but it also affect your appearance.

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There are numerous explanations why you have to have healthy and strong teeth. It doesn't matter what your age is, it's something you should bear in mind. Furthermore, ensuring that your teeth is in best shape will protect you from going through dental issues when you get older. To assist you in keeping your pearly whites healthy and strong, below are a few of the most effective guidelines that you can follow.

Brushing your teeth performs a significant role when it comes to making certain that your teeth is constantly in good condition. It is one daily routine that has been taught to you since you were a kid. Apart from having fresh breath and white teeth, brushing your teeth gives other several advantages.

You're going to less likely need to have dental treatments as you grow older if you know how to brush your teeth effectively and routinely. Brushing your teeth consistently helps prevent cavity buildup and it'll also decrease your chances of having gum disorders. Brushing will avoid the buildup of plaque that may bring about periodontal disease later on especially if it is not resolved immediately. It will likewise decrease your risks of developing dental infections.

Flossing is additionally extremely important in regards to keeping your teeth strong and healthy. Even dentists lay emphasis on the need for flossing. But, not everyone follows this recommendation. Just a few people actually floss their teeth on a regular basis. Dental floss is considered to be an interdental cleaner meaning it could clean the tight areas between your teeth and also at the base of your gum line. Flossing can thoroughly clean the areas that brushing cannot reach. The tight gaps between your gums and your teeth is the place where pieces of foods are lodged and flossing can eliminate this and tartar too.

You must also have a balanced diet. The overall health of your teeth is significantly affected by the food and beverages that you eat. Taking in milk, juices that are rich in calcium as well as other dairy foods rich in vitamin D and calcium can help you avoid tooth loss. Cheese is also beneficial to your teeth simply because it fights acid that can induce cavities. Fruits and veggies will not only keep your body healthy and strong but it'll also clear away plaque as well as help you have fresher breath.

Smoking cigarettes is one habit that you should stop if you'd like to have strong teeth. Apart from doing harm to your health, it can also cause irreparable damage to your health. A few of the light outcomes of smoking to your health include possessing a nicotine tarnished teeth and terrible breath. Smoking cigarettes also can irritate your gum tissue that may lead to periodontal disorders. Even individuals who are not smoking cigarettes yet are constantly subjected to second hand smoke are in danger of having smoke related periodontal disease. Plaque buildup, cavities, mouth sores and infections are only a few of the conditions that you'll have when you continue smoking.

The health of your teeth will also be influenced when you drink an excessive amount of liquor. Like smoking, too much drinking will not just affect your teeth but to your overall wellness. Alcohol based drinks are high in sugar content. When you drink too much, the sugars from the alcohol you are drinking creates an environment in your mouth which helps bring about the development of bad bacteria as well as plaque. There's no amount of brushing which could help your teeth if you are drinking alcohol way too much.

Drink modestly and restrict the damage brought on by drinking through brushing and flossing. When you are drinking, you can even swish water around your mouth to encourage a rise in saliva flow. It will help you rinse away the acid and also sugar within your mouth that lead to the spread of bacteria and plaque buildup. Chewing gums which are sugar-free after consuming alcohol could also help in removing dangerous sugars in your mouth. Drinking alcohol modestly, if not totally staying away from drinking, is the best approach to take to keep your teeth healthy and strong.

Going to your dentist regularly is likewise a necessity. It is strongly suggested that you visit your dental professionals at least twice a year or every six months. Your dental professional will see if your teeth have teeth cavities, plaque as well as tartar. They're going to also examine your gum area by using a specific tool that can measure the spaces between your gums and also your teeth. If they see shallow gaps in between your gums and also your teeth, it means that your gums are in good shape; however, much deeper areas suggests that you most likely possess an existing periodontal disease or you may be at risk of having it soon. These specialists will also clean your teeth thoroughly in a way that is matchless to normal flossing and brushing.

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  • March 24, 2016Date Added :
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