COMPLEX NUMBER CALCULATOR OPERATIONAL
January 8, 1940 - Bell Laboratories, U.S.A.
George Stibitz's Complex Number Calculator was functional. He was a research mathematician at Bell Laboratories, who worked on its construction from Apr 1939, assisted by Samuel Williams. Later known as Bell Labs Model I Relay Computer, it used telephone relays and coded decimal numbers as groups of four binary digits (bits) each. It has been called the first electromechanical computer for routine use. A demonstration of its ability in remote computing was given on 11 Sep 1940, when messages were exchanged by phone lines between teletypewriter operators. Calculations suggested by attendees of the American Mathematical Society's meeting at Dartmouth College, Hanover, New Hampshire were communicated to an attendant at the keyboard of Stibitz's calculator in New York.
BLACK AMERICAN INVENTION
January 8, 1872 - U.S.A.
A second U.S. patent was issued to Black American inventor Thomas Elkins for a new article of chamber furniture which he designated a "Chamber Commode" (No. 122,518). It provides a combination of "a bureau, mirror, book-rack, washstand, table, easy-chair, and earth-closet or chamber-stool," which might otherwise be constructed as several separate articles. Previously, a patent had been issued to Elkins on 22 Feb 1870 for a "Dining, Ironing Table and Quilting Frame Combined" (No. 100,020). Another patent was subsequently issued on 11 Apr 1879 for a "Refrigerating Apparatus" for "food or corpses," which provides a convenient container and method of chilling using the evaporation of water. (No. 221,222).
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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...."
All of us have a God in us
by Earth Day, Kenya
"...All of us have a God in us, and that God is the spirit that unites all life, everything that is on this planet. It must be this voice that is telling me to do something, and I am sure it'as the same voice that is speaking to everybody on this planet at least everybody who seems to be concerned about the fate of the world, the fate of this planet. Wangari Maathai-Noble Peace prize winner, Deputy Minister of Environment, founder Green Belt movement in Kenya...."
RANDOM FACTS
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.
Salary
about Steve Jobs
Steve Jobs' annual salary was $1, just enough to keep company health benefits.
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Category Information : Christianity
This is our Christianity category. If you are interested in Christianity, feel free to browse these listings. If you have a site that fits within this category, Submit it for inclusion.
A global ministry committed to preparing the nations of the world for the coming of Jesus Christ through mass media. Using television and the Internet, CBN is proclaiming the Good News in 147 count...
In September 1967 our family decided to open a small gift shop in downtown Wheaton, IL. The first name for our store was Wheaton Card & Gift. It was a modest store of about 1200 square feet, 60% of...
Potter's House: Thanks for dropping in to our web site. Our aim here is to give you an overview of who we are, what we believe, and our vision for this great nation of Australia and the world beyon...
Weapons of War Ministries International headed by Prophetess Rosie Reckley is one of the most Unique Prophetic Ministries that exists today. This ministry is like that of the Great Generals of our ...
The UPCI is a Bible-based church. We're Bible-based in that we seek to base all of our beliefs and our lifestyle on explicit passages of the Bible or on biblical principles. Based on Scripture, we ...
The Shepherd's Chapel is a Christian church and broadcast facility based in Gravette, Arkansas. The church's founder and senior pastor is Arnold Murray. And our unique verse by verse, chapter by ch...
Grace & Peace is a group of individuals who gather weekly to have their lives restored by the gospel. We are knit together by a message tailor-made for broken people. people who find it easier to p...
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 ...
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.