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TODAY IN HISTORY
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.
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.
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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 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
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Salary
about Steve Jobs
Steve Jobs' annual salary was $1, just enough to keep company health benefits.
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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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 ...
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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...
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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.
In this highly competitive market, people are looking out for effective ways to improve their businesses.
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