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!

    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.



  • 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...."
  • A Change is Gonna Come
    by Meredith Grey

    "...Change; we don't like it, we fear it, but we can't stop it from coming. We either adapt to change, or we get left behind. It hurts to grow, anybody who tells you it doesn't is lying. But here's the truth: Sometimes the more things change, the more they stay the same. And sometimes, oh, sometimes change is good. Sometimes change is everything...."


  • Salary
    about Steve Jobs

    Steve Jobs' annual salary was $1, just enough to keep company health benefits. Drug Abuse
    about Facts about Drugs

    Facts about drugs can protect against drug abuse. Legal drugs, such as alcohol and tobacco, kill more people than illegal drugs. Tobacco (smoking cigarettes) kills more people than any other drug. Illegal drugs including heroin, cannabis, ecstasy and amphetamines can have unknown or dangerous ingredients. Mixing drugs, especially with alcohol, can be fatal.

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Website preview thumbnail for : Do You Want To Do Your Own Home Lighting
Many people use lighting designers to create atmosphere in each of their rooms.Now you can create this mood yourself. There are so many different and unique lamps to buy for your home.
Article Content :There are many ways to add beauty to your house and at the same time give it the lighting that it needs. In recent years, glass art lighting has given people the flexibility to create artist lighting pieces that are unconventional and that still acts a scones or pendant lighting. These special scones and pendant lighting fixtures are designed and created to match the surround décor. The result is that they blending into their surrounds naturally. This is the way you should pick your off the shelf lighting fixtures. By shopping carefully and as long as you need, you can find the lighting that looks like it was created by an artist to blend into your furniture. Glass art lighting can be created by blown glass, cast glass, slumped glass, or etched glass. Stained glass has also been popular over the years because of the rainbow of colors that make it up. If you contract art lighting, make sure wiring conforms to UL electrical standard to avoid an electrical mishaps. No matter what lighting you decide on, you will find that when chosen right, it will advance the beauty and functionality of any room. Lighting always sets the mood for your room. So your job as a light fixture amateur is to decide what each room in the house will be used for and what lighting is best to enhance it function. When choosing lighting you need to decide if light will serve as decorative, background, or work area. Decorative lighting serves to highlight a certain area or object. But background light can join with other lighting to create a natural look and feel. Whereas, your work area lighting is used where you work, and it should be intense and natural like full spectrum lighting. This type of light is strong but does not stress your eyes like filament or florescent light. Pendant lighting is frequently used in kitchens. This type of lighting gives you the flexibility to arrange them in unique ways and its placement is only limited by your own imagination. Pendant lights can also be hung in different location throughout your house. You can always create moods with lights by using standard table or floor lamps throughout the house. Accent lighting can give a particular feeling that no other type of light can give. With so many new materials both expensive and inexpensive, chandeliers and fan lights can be created or purchased to stirrup the appearance of an entertainment room. To find that perfect lighting fixture that you want, scan and surf the many website lighting stores that wait for you. There are so many different types of lighting, so when you are ready to buy just examine the various types and visualize these lamps at various spots in your house. If you are at a physical store ask if you can test the lamp in your house. If you are shopping online, just make sure you know exactly that type of lighting fixture you want and the lighting it will give. Are you looking for new ways to bring more light in your home? Now you access to new material and designs in lighting fixtures. You can now buy them on the internet and get them shipped directly. No longer do you have to hire designers to gain access to these fixtures. Do you have an artistic eye to do lighting and lamp placement? Visit are site at, outdoor lighting, to see if you can imagine how to use these designer fixtures.


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