DNA STRUCTURE DISCOVERED
February 28, 1953 - Cambridge, MA, U.S.A.
James Watson, from early on this Saturday, spent his time at the Cavendish Laboratory in Cambridge, shuffling cardboard cutout models of the molecules of the DNA bases: adenine (A), guanine (G), cytosine (C) and thymine(T). After a while, in a spark of ingenuity, he discovered their complementary pairing. He realized that A joined with T had a close resemblance to C joined with G, and that each pair could hold together with hydrogen bonds. Such pairs could also neatly fit like rungs meeting at right-angles between two anti-parallel helical sugar-phosphate backbones of DNA wound around a common axis. Such structure was consistent with the known X-ray diffraction pattern evidence. Each separated helix with its half of the pairs could form a template for reproducing the molecule. The secret of life!
BALTIMORE & OHIO RAILROAD
February 28, 1827 - Baltimore & Ohio USA
The Baltimore & Ohio Railroad became the first U.S. railway chartered for the commercial transportation of freight and passengers. Investors hoped that a railroad would allow Baltimore, the second largest U.S. city at that time, to successfully compete with New York for western trade. New Yorkers were profiting from easy access to the Midwest via the Erie Canal.
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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...."
Rules for Happiness
by Immanuel Kant
"...Rules for Happiness: Something to do, Someone to love, Something to hope for...."
RANDOM FACTS
Cancer Facts & Figures
about Besides Lung Cancer
Besides lung cancer, tobacco use also increases the risk for cancers of the mouth, lips, nasal cavity (nose) and sinuses, larynx (voice box), pharynx (throat), esophagus (swallowing tube), stomach, pancreas, kidney, bladder, uterus, cervix, colon/rectum, ovary (mucinous), and acute myeloid leukemia.
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.
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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.
As recruitment specialists, Bis Henderson work with businesses to successfully hire supply chain, logistics and procurement professionals on a permanent and interim basis across professional, manag...
Has grown into the largest supplier of live entertainment for weddings, corporate events and private parties in the UK. With over 90,000 previous customers and an artist roster of over 1750 bands, ...
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...
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
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.