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TODAY IN HISTORY

    DRY-CELL PATENT
    November 15, 1887 - U.S.A.

    German scientist, Dr. Carl Gassner, was issued a U.S. patent (No. 373,064), the first in the U.S. for a "dry" cell. Gassner had already patented his invention in Germany (No. 37,758) on 8 Apr 1886, and also in Austria, Belgium, England, France and Hungary in the same year. The sealed zinc shell which contained all the chemicals was also the negative electrode. Later, he improved the shelf life of the battery by adding zinc chloride to the electrolyte to reduce corrosion of the zinc shell. Gassner's battery was much like the carbon-zinc, general-purpose batteries sold today. By 1896, the National Carbide Company (later Union Carbide and Eveready) produced the first consumer dry cell battery. Two years later, the company made the first D cell.

    ALKALINE DRY-CELL PATENT
    November 15, 1960 - U.S.A.

    A U.S. patent was issued for an alkaline dry-cell to P.A. Marsal, Karl Kordesch and Lewis F. Urry who assigned it to the Union Carbide Corporation, the manufacturer of Eveready batteries (No. 2,960,558). Compared to the existing carbon-zinc dry-cells, it offered an appreciable increase in life-span and efficiency during heavy continuous drains. Its construction used an alkaline electrolyte, manganese dioxide as depolarizer, a zinc powder-gel anode, and certain additives such including mercury and electrolyte-creep inhibitors. The patent gave practical details for commercial production. The patent claimed that whereas four cells in series of the carbon-zinc type gave 4.5 volts to power a 1.25-amp bulb for 45-min to 1-hr, the new alkaline design gave good brilliance after 6 to 7 hours.

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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...."
  • All of us have a God in us
    by Earth Day, Kenya

    "...All of us have a God in us, and that God is the spirit that unites all life, everything that is on this planet. It must be this voice that is telling me to do something, and I am sure it'as the same voice that is speaking to everybody on this planet at least everybody who seems to be concerned about the fate of the world, the fate of this planet. Wangari Maathai-Noble Peace prize winner, Deputy Minister of Environment, founder Green Belt movement in Kenya...."

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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.

Lighting Fixtures :

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Is it time to remodel or buy a new house? Do you need ceiling fixtures for your rooms? Will you need to have different light fixtures for each room? Also decide which of these bulbs best fits your needs.

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When you first buy a house, remodel, or redecorate your house, this will be a good time to change your lighting fixtures. When redoing a room, it may take a few fixtures to bring out the room to the way it should be. Each room has a purpose and your lighting should correspond with that purpose.

You can really bring out a room with a light fixture that is bold and striking. Ceiling fixtures come in all types of designs and can drastically change the feeling of your room. Lamps can be added to add contrast the ceiling lighting. If you do a lot of reading then you will need a high intensity reading lamp.

The best types of reading lamps are those that are full spectrum lamps. These are specialty lamps and produce white light similar to the sun. Unlike regular incandescent bulbs, they create white light by emitting light frequencies like the sun does. This type of white light is good for reading and easy on the eyes.

When looking for a ceiling lamp fixture, look for functionality. If the fixture has too many design features, it can block the light and provide very little general lighting to your room.

If you room is to have computers, then a ceiling lighting fixture with indirect lighting will be best to avoid computer monitor glare. If possible try to avoid using florescent lamps in your living area since they emit light in 60 cycles which fatigue your brain and body.

The ceiling lighting is not only for the kitchen but for the other rooms like the bedroom, stairway, hallways, and recreation room.

The type of bulb you can put into a lighting fixture is only limited to the type of bulbs that are available in the market. Each bulb has a function and a specific frequency and power output in watt. When using a halogen bulb, use a fixture that will enclose this lamp in case it explodes. Full spectrum light bulbs are also available and I favor these because they mimic natural light more than any other type of bulb.

Saving energy light bulbs are nice in concept, but don?t away put out the light intensity that you need in the room. If you have multiple fixtures and you can put these energy saving bulbs. Then again depending on the room's purpose, this will determine the wattage of bulbs you use.

When looking at ceiling fixtures, consider the efficiency of the fixture. Some fixtures are beautiful to look at, but absorb the light that should go to the room. Make sure that the lamp is easy to clean otherwise you will be wishing you had bought another type of lamp. Also look to install a rheostat to control the light. This manual light control will give your bulb long life and you can adjust the intensity of the bulb to give more or less light.

Using these tips will help you setup your lighting fixture so that you don't have to replace it later. Just make sure that you use the fixtures that will complement the purpose of your room.

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  • Affordable Lamps
    Affordable Lamps, has a large display of Contemporary lighting fixtures. You can find lamps for each room with different purposes. You will surely find affordable lighting fixture or chandeliers. We also have outdoor lighting for you outdoor projects. Loo

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  • November 30, 2014Date Added :
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