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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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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 Theodore Roosevelt
"..."No man is above the law and no man is below it; nor do we ask any man's permission when we require him to obey it. Obedience to the law is demanded as a right; not asked as a favor."..."
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More vehicles
about Stolen On New Year's
More vehicles are stolen on New Year's Day than any other holiday throughout the year. (So does that mean thieves are having their last fling before changing their ways or are they trying for a big score to start the New Year?)
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.
Security :
Category Information : Security
We have spent years looking for the perfect way to make your home and office more secure and comfortable. And with great efforts, 5 product lines with mature technology are unfolding before your ey...
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Offers over 100 Background Checks and Pre-Employment Screening services to businesses ranging from Fortune-500 companies to small businesses.
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This site's objective is to provide a roadmap to help your government agency or corporation navigate the security provider selection process.
http://www.gotridentgroup.com
Affordable and editable information security documentation that provides you with professionally written policies and standards that you can buy online.
http://www.complianceforge.com
Our mission is to provide high quality security services to meet our customers’ needs by being committed to maintaining excellence, respect and integrity in all aspects of our operations. To...
http://www.sig.edu.au
A leading supplier of UK manufactured custom made doors each individually designed for the specific requirements of each and every customer. Typically a burglar will gain access to your building vi...
http://www.securitydoorsdirect.co.uk
Affordable lock smith: Looking for affordable locksmith - Broward & Palm Beach Counties - residential/commercial - 24/7 fast & reliable service. Call Now.
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We can quote for any of your security needs, we are one stop shop for security products, we can also Design Systems just email drawings as we have trained AutoCAD Technicians in our office, we will...
http://www.247security.ie
COP Alarms are an experienced NSI Approved company in installing burglar Alarms and Home Security Systems for Residential and commercial properties within London and home counties. Our Burglar Alar...
http://www.copalarms.co.uk
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Imagine this scenario. You are sitting in your favorite sit-down restaurant, celebrating a birthday, promotion, or a Spelling Bee victory. A few minutes later, a server appears outside the kitchen, and begins walking towards your table.
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Champagne hot air Balloon flights over Berkshire, Hampshire, Hertfordshire, Oxford, Surrey and London. The perfect surprise gift for that special occasion - Birthday Presents, Valentine Surprises, ...
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Animal and Pet related classified ads listing pet and animal related products and information only. Our Classified Ads are indexed by state and city and are searchable by zip code. Search for pet r...
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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
We are a Bury UK based retailer of a wide range of baby and children's products. We specialise in offering prams & pushchairs.
http://www.itsababy.co.uk
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Whether you're an experienced affiliate marketer or a novice simply looking to make some extra cash from your web traffic, The Vapor industry has grown to over 3.5 Billion in revenue in 2015, and continues to grow exponentially annually. It's not a one-time purchase industry, either- customers keep coming back. You don't want to miss out on this opportunity to join the gold rush of our generation. Our program is not only easy and free to join; we will give you $25 to sign up as a bonus.
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.
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.
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What to you want here?