CATEGORIES

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.

MEMBER LOGIN

RANDOM QUOTES

  • 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...."
  • Until a man duplicates a blade of grass
    by Earth Day, Thomas Alva Edison Inventor

    "...Until a man duplicates a blade of grass, Nature can laugh at his so-called scientific knowledge. Remedies from chemicals will never stand in favorable comparison with the products of Nature, the living cell of a plant, the final result of the rays of the sun, the mother of all life...."

RANDOM FACTS

  • Salary
    about Steve Jobs

    Steve Jobs' annual salary was $1, just enough to keep company health benefits. 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.

Teens - Young Adult :

Choose Your Color :

Category Information : Teens - Young Adult

This is our Teens - Young Adult category. If you are interested in Teens - Young Adult, feel free to browse these listings. If you have a site that fits within this category, Submit it for inclusion.
Sort by :RANKHITSTITLE

LINK LISTINGS :

Website preview thumbnail for : Start Youth
Start Youth is a content based site that combines social with your everyday life. We want to be the place where you can read up on the latest news and gossip, watch your favorite viral videos, all ...
http://startyouth.com
Website preview thumbnail for : Mobilize
Mobilize believes that in order to create long-term, sustainable and community based solutions to the challenges facing our generation, Millennials (young adults born between the years 1976 and 199...
http://mobilize.org
Website preview thumbnail for : pacer teens against bullying
Founded in 2006, PACER’s National Bullying Prevention Center unites, engages and educates communities nationwide to address bullying through creative, relevant and interactive resources. PAC...
http://www.pacerteensagainstbullying.org/#/home
Website preview thumbnail for : Forever Young Adult
Created in 2009, Forever Young Adult is a community for YA fans who are a little less "Y" and a bit more "A." As the girlie counterpart to Badass Digest, FYA is a place where you can let your inner...
http://foreveryoungadult.com

There is no news in this category!

ARTICLE LISTINGS :

Apart from the very few, many children hate that time of the year when they have to put on costumes, memorize a few lines, go on stage and act out a character.

Featured Link Listings (random) :

A random section of our Featured link listings :
Website preview thumbnail for : K9 Leather
Hand Made Leather Dog Harnesses, Leather Dog Collars and Leather Dog Leads, our products are made from the finest bridal leather, all dog collars, dog leads and dog harnesses that we stock are made...
http://www.k9leather.co.uk
Website preview thumbnail for : Branded Basics
A leader of Urban Connection provide Mens Tall Tees Shirts, Tall T-Shirts, Hip Hop Tshirts, Urban Tees, Tall Tshirts, Long T-Shirts, Long tees, Polo Shirt in USA from Brandedbasics.
http://www.brandedbasics.com
Website preview thumbnail for : Great Carvers
Carvers for Conservation was started to introduce the people conserving the habitat of migratory birds to the premier bird sculptors in the world. My intention was to be mutually beneficial to the ...
http://www.greatcarvers.com
Website preview thumbnail for : Associated Transformers
Associated transformers is a leading Transformer Manufacturing Company in Tamilnadu, India. Lead the industry in manufacturing of various types of transformers like Distribution, Furnace/ Rectifier...
http://www.associatedtransformers.com

Video Listings :

A selction of listings chosen randomly that contain embedded videos.

Featured Article Listings (random) :

A random section of our Featured Article listings :
Just a line to say I'm living, That I'm not among the dead Though I'm getting more forgetful And more mixed up in the head.
A whipsaw is a representation of profit-taking going on in the market.
The course of the River Thames as we know it today was created about 10,000 years ago, by melt water from the ice-sheets that covered much of the United Kingdom during the last ice-age...
Friendship poems happen to be just the best medium of expressing eternal friendship to that special friend. You can let all the love and affection you possess flow out, right onto the paper lying in front of you, through a sweet little friendship.

Title for tab4 content :

What to you want here?