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TODAY IN HISTORY
ALKALINE DRY-CELL PATENT
November 15, 1960 - U.S.A.
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.
DRY-CELL PATENT
November 15, 1887 - U.S.A.
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.
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RANDOM QUOTES
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The wealth of the nation
by Earth Day, Gaylord Nelson
"...The wealth of the nation is its air, water, soil, forests, minerals, rivers, lakes, oceans, scenic beauty, wildlife habitats and biodiversity that'as all there is. That'as the whole economy. That'as where all the economic activity and jobs come from. These biological systems are the sustaining wealth of the world...."
by Meredith Grey
"...Change; we don't like it, we fear it, but we can't stop it from coming. We either adapt to change, or we get left behind. It hurts to grow, anybody who tells you it doesn't is lying. But here's the truth: Sometimes the more things change, the more they stay the same. And sometimes, oh, sometimes change is good. Sometimes change is everything...."
RANDOM FACTS
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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.
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.
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Article Content :Our life at present is quickly developing. Apart from regular everyday troubles we cannot get rid of stress that has a destructive impact on our health and mood. Stress is mostly connected with rapid speed of life. People are usually in a rush and they do not have time to relax. That is why having a hobby is so significant in order to stay in good state of mind. Sportive activity and cultural development hold the leading positions amongst the best ways of spending spare time. Music, books, theatre, cinema have become an integral part of a person's life as they help to develop intellectually.
Cinema takes a special position amidst other arts because it's a combination of music and artistic play, script creation and film production. Film is a piece of another reality. When you watch film you feel deep emotional connection with principal characters. You have an opportunity to distract from your own problems or thoughts and become totally absorbed in what you see on the screen. It helps you to keep your mind active and sympathizing.
Technological advance has gone far and has changed our life to an unbelievable extent. The creation of the World Wide Web has connected the planet into one single unit. We not only know what is going on in distant countries practically at once, but we have a chance to communicate with people, listen to music and view video films online, as well as download them. All you need is only a PC and an access to the Internet. The newest films and the old ones are at your disposal. Downloading films has a lot of advantages.
Amidst the most essential of them is saving your money and time on the search of the necessary DVD in the nearest movie stores. Moreover, downloading videos from the World Wide Web brings a lot of comfort. It's actually a home cinema with your own schedule. It is you who choose what video and when to watch. If you take a decision to download this or that film from the Internet you will easily find a number of websites providing their services. Take some time to choose the most appropriate one and enjoy viewing your favorite movies.
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