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TODAY IN HISTORY
VACUUM TUBE
October 20, 1906 - American Institute, U.S.A.
October 20, 1906 - American Institute, U.S.A.
Dr. Lee DeForest (26 Aug 1873 - 30 Jun 1961), one of the “fathers of radio,'' announced his three-element electrical vacuum tube (now known as a triode) to a meeting of the American Institute of Electrical Engineers He had discovered that when a mesh, or grid, of wire was placed between the filament and collector “plate†in a diode tube (first made by J. Ambrose Fleming, 1904), a large voltage-amplifying effect could be produced. DeForest patented this vacuum tube on 15 Jan 1907. The ability of this tube to amplifiy weak signals was an invention as great as radio itself, because it made long-distance communication possible.
DIFFERENTIAL ANALYSER
October 20, 1927 - U.S.A.
October 20, 1927 - U.S.A.
A new electrical machine with a mechanical mind has been perfected at Massachusetts Institute of Technology / MIT by Professor Vannevar Bush which can solve problems to complex for human engineers. The Product a differential analyser allows the mathematician or engineer to feed in the equation and parts of the problem which cannot be solved by formal mathematics. The machine can take from 8 minutes to several hours to provide the answer which man alone can not solve today.
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RANDOM QUOTES
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Happiness
by Thomas Jefferson
"...Our greatest happiness does not depend on the condition of life in which chance has placed us, but is always the result of a good conscience, good health, occupation, and freedom in all just pursuits...."
by Immanuel Kant
"...Rules for Happiness: Something to do, Someone to love, Something to hope for...."
RANDOM FACTS
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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.
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.
Teens - Young Adult :
Category Information : Teens - Young Adult
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
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
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
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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.
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A group of people with the same desire to help rescue and save small breed dogs from high-kill shelters throughout the united states and find them loving forever homes. We are always looking for vo...
http://secondchancechi.org
Search Office Space was founded in 1993 by Richard Smith in order to bring together all elements of the serviced office space market into one convenient single point of contact, with clients having...
http://www.searchofficespace.com
A lots of free online games and other free games are available at kidztar. Therefore it is the best place for your kid's entertainment.
http://www.kidzter.com
Drs. Richards and Miller care for a pediatric dental practice dedicated to providing dental care, education and community service to Lake County and surrounding areas.
http://www.homeofmolar.com
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No matter what else you are doing from cradle days through
to the end, You're writing your Life's secret story, Each night sees another page penned.
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.
Search engine is the term with which we are accustomed with very much. But the web directory is not that same. The web directories are older than search engines according to the time of their invention.
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