CATEGORIES

TODAY IN HISTORY

    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.

    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.

MEMBER LOGIN

RANDOM QUOTES

  • 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...."
  • 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...."

RANDOM FACTS

  • Drug Abuse
    about Facts about Drugs

    Facts about drugs can protect against drug abuse. Legal drugs, such as alcohol and tobacco, kill more people than illegal drugs. Tobacco (smoking cigarettes) kills more people than any other drug. Illegal drugs including heroin, cannabis, ecstasy and amphetamines can have unknown or dangerous ingredients. Mixing drugs, especially with alcohol, can be fatal. 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.

Choose Your Color :

LISTING INFORMATION :

Website preview thumbnail for : The Interior Design Of A House Matters
The article is devoted to space arrangement in a house based on the personal and psychological approaches which feature comfort and harmony of the interior.
Article Content :It has been proven that the interior of the place we live in impacts upon our inner state and mood. Luckily, the time when the home interior was grounded on practicability and utility is a thing of the past, and here come a personal and a psychological approaches to the forefront. An apartment or a private house is gradually turning from the space we reside in into the place that reflects our inner world. The style is based on the two key factors - comfort and harmony. The psychological approach to the home interior includes two major functions. The most widespread and common is a harmonizing function when the decor of a room or the whole house reflects its owner's temperament, his perception of the outside world. The function of such a decor is to create the atmosphere of harmony and calm. Nontrivial solutions can hardly be appropriate. Such an approach actually assumes interior inactivity towards its owner. Because of optimal mixture of shades and structures of decoration materials, the interior is adapted to an owner and reflects his inner ego. The other function can be called stimulating. Such an approach presupposes a certain connection between the design and a human mind. Nowadays design plays an active part: it either favorably stresses owner's certain traits of character and temperament or it evens out unfavorable qualities. For example, such an interior can balance an impulsive choleric or encourage a melancholic who is inclined to depression. It is obvious that the popularity of feng-shui now is mostly determined by the variety of techniques available for organizing stimulating space. But feng-shui adherers state that favorable arrangement of space can magically impact not only on the minds of people who live in this space, but also the events in their lives, success in private and social life. It goes without saying that an ideal design should combine the two functions. But not every person can get a professional consultancy in the interior psychology or space planning from a master of feng-shui. Yet, one can learn and use the major aspects of personal approach to space arrangement on their own. The interior design starts with house planning, creating a certain inner space structure. As psychologists put it, such structuring is of paramount importance. It sets the rhythm of life in a house and often determines particular types of relationships that exist between house dwellers and between house dwellers and their guests. Though there are a lot of forms of house planning, there should be emphasized two major types: close and open interior.
Author Title :Согласование перепланировки

LISTING STATISTICS :

  • 3517Listing ID :
  • insfo63Owner :
  • Free Articles / LifetimeType :
  • April 27, 2010Date Added :
  • NeverExpires :
  • 0Traffic Out :
  • 0Average User Rating :
  • 0Total User Votes :
  • 0Reviews :

RATE LISTING :

Please rate this link listing.
You must be logged in to be able to rate a listing.

USER COMMENTS :

No user reviews have yet been made or approved for this listing.

You must be logged in to be able to leave a comment.