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    HAND-HELD CALCULATOR
    February 1, 1972 - United States

    The first scientific hand-held calculator was introduced for $395 by Hewlett- Packard, named the HP-35 for having 35 keys. It was the first hand-held calculator able to perform logarithmic and trigonometric functions with one keystroke. The red LED display could give scientific notation up to 10 digits mantissa and 2 digits exponent. The price was reduced several times, eventually to $195. By Feb 1975 (when production of the model was discontinued), 300,000 had been sold. The numbers and functions for calculations were entered in “Reverse Polish Notation”(RPN), which used an “ENTER” key but needed no parentheses or “=” key. It ran on rechargeable batteries and had electronics with several integrated circuits in a 79 ×147×34 mm (3.1" x 5.8" x 1.4") case.

    OBAMA SHUTS DOWN THE MOON PROJECT
    February 1, 2010 - United States

    Barack Obama has canceled NASA's plans for taking men to the Moon. The Constellation program had been looking at new rockets and a crewship to put astronauts on the lunar surface by 2020. In the 2011 budget request that was issued on Monday, February 1st, Obama has said that the project is too costly, 'behind schedule, and lacking in innovation.'

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  • Rules for Happiness
    by Immanuel Kant

    "...Rules for Happiness: Something to do, Someone to love, Something to hope for...."
  • Happiness
    by Thomas Jefferson

    "...Our greatest happiness does not depend on the condition of life in which chance has placed us, but is always the result of a good conscience, good health, occupation, and freedom in all just pursuits...."

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  • 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. 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.

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Category Information : Electrical Devices

This is our Electrical Devices category. If you are interested in Electrical Devices, feel free to browse these listings. If you have a site that fits within this category, Submit it for inclusion.
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Website preview thumbnail for : Tracking2u gps tracking system
We provide GPS location tracking services which enable businesses to track & manage their resources in real-time. We help you to track details and updates about your fleet management by delivering ...
http://www.tracking2u.com
Website preview thumbnail for : MetAir portable power systems
Reliable Backup Power When and Where You Need it Most. Keep Your Emergency Communications and Portable Electronic Devices Charged for Days, So You Can Stay Connected and Informed When Power Lines A...
http://metairpower.com
Website preview thumbnail for : HarborPowerHouse Home Generators
Is an authorized Honda and Polaris dealership located near the beautiful shores of Lake Michigan in Benton Harbor, Michigan. We provide award winning service, product support and FREE SHIPPING on a...
http://www.harborpowerhouse.com
Website preview thumbnail for : Urja Techniques (India)
A prominent electric power transformers manufacturer based in Maharashtra, the Electric Power Transformers offered by us are highly efficient and fabricated from quality material and available at t...
http://www.urjatransformers.co.in
Website preview thumbnail for : Global Supply Store
offers deals on waterproof fogproof binoculars, GPS Navigation Systems, TFT LCD Screens, thermal imaging camera and satellite phones. Our knowledgeable staff will help you find the exact marine boa...
http://www.globalsupplystore.com
Website preview thumbnail for : ThinkGeek
ThinkGeek has the best geeky electronics, from retro gaming systems to audio equipment to specialized remotes. Did we mention we're a one-stop shop for iPhone accessories and weird musical instrume...
http://www.thinkgeek.com/electronics
Website preview thumbnail for : Grace Gensets
dg set supplier, grace gen sets has been engaged into Diesel Generator Supplier, Diesel Generator Set Manufacturers and DG Set Supplier that are known for their unhindered performance and consisten...
http://www.gracegensets.com

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ARTICLE LISTINGS :

Most non-electricians know little about circuit breakers. Are you planning to redo the wiring in your home? Using the wrong breaker can cause you a lot of power failures. Quiz your electrician to know more about breakers.
Bring to an end your electric power problems. Use an automatic transfer switch to prevent power surges and blackouts. Your home appliances will be safe with this switch. It safely transfers electric power to the back up unit.

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Website preview thumbnail for : Adventure Balloons
Champagne hot air Balloon flights over Berkshire, Hampshire, Hertfordshire, Oxford, Surrey and London. The perfect surprise gift for that special occasion - Birthday Presents, Valentine Surprises, ...
http://www.adventureballoons.co.uk
Website preview thumbnail for : Search Office Space
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...
http://www.searchofficespace.com
Website preview thumbnail for : Ferienwohnung Kluntjes Greetsiel
Komfortable Nichtraucher Ferienwohnung im Herzen vom schoenen Fischerdorf Greetsiel.
http://www.greetsiel-feriendomizil.de
Website preview thumbnail for : Associated Transformers
Associated transformers is a leading Transformer Manufacturing Company in Tamilnadu, India. Lead the industry in manufacturing of various types of transformers like Distribution, Furnace/ Rectifier...
http://www.associatedtransformers.com

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No matter what else you are doing from cradle days through to the end, You're writing your Life's secret story, Each night sees another page penned.
In this highly competitive market, people are looking out for effective ways to improve their businesses.
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.
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.

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