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).
MEMBER LOGIN
RANDOM QUOTES
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...."
No Man is Above the Law
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."..."
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.
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?)
Legal :
Choose Your Color :
Category Information : Legal
This is our Legal category. If you are interested in Legal, feel free to browse these listings. If you have a site that fits within this category, Submit it for inclusion.
Outsource a law writer from our U.S. based legal team with decades of Federal Court experience, thousands of Articles, Judicial Opinions, Appellate Briefs, and Motions, and consultative fluency in ...
Attorneys statewide in florida. helpings callers since 1996=specializing in DUI DEFENSE auto accidents with injuries, foreclosure defense, job site injury's, truckers, personal injury and wrongfull...
The focus of AML-Assassin.com is on providing quality Anti-Money Laundering (and Fraud) educational information for the front line Investigators, as well as others in the profession worldwide.
The California bankruptcy attorneys at Borowitz, Lozano & Clark know what they are doing because bankruptcy is all they do and have a proven track record in succeeding.
Tova Intellectual Property, one of the leading Israel intellectual property consultants, is offering intellectual property protection services to its clients.
Johnson Injury Law is serving the community with the best in personal injury and medical malpractice law. Whether you or a family member has been injured in a car accident.
To get in touch with a North Carolina bankruptcy attorney who will take your case from start to finish, contact the attorneys at The Law Offices of John T Orcutt.
Lincoln Law, one of the nation's leading bankruptcy law firms, has been focused on providing clients with instant bankruptcy relief in Northern California. Call toll-free for a free consultation.
The NYC law firm of Paul Ajlouny & Associates is here to help. Call us day or night for a free case evaluation if you were seriously injured in a car accident. Let us take care of Your legal co...
A predominantly commercial law firm based in Guildford Surrey offering a wide range of services to business groups such as care homes, dental, medical, horticultural trade and veterinary law.
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.
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...
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...
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.
Unfortunately just like humans our pets will age too. With the aging process comes health problems and with health problems comes very expensive vet bills. Research you dog
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...