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TODAY IN HISTORY

    DIFFERENTIAL ANALYSER
    October 20, 1927 - U.S.A.

    A new electrical machine with a mechanical mind has been perfected at Massachusetts Institute of Technology / MIT by Professor Vannevar Bush which can solve problems to complex for human engineers. The Product a differential analyser allows the mathematician or engineer to feed in the equation and parts of the problem which cannot be solved by formal mathematics. The machine can take from 8 minutes to several hours to provide the answer which man alone can not solve today.

    VACUUM TUBE
    October 20, 1906 - American Institute, U.S.A.

    Dr. Lee DeForest (26 Aug 1873 - 30 Jun 1961), one of the “fathers of radio,'' announced his three-element electrical vacuum tube (now known as a triode) to a meeting of the American Institute of Electrical Engineers He had discovered that when a mesh, or grid, of wire was placed between the filament and collector “plate” in a diode tube (first made by J. Ambrose Fleming, 1904), a large voltage-amplifying effect could be produced. DeForest patented this vacuum tube on 15 Jan 1907. The ability of this tube to amplifiy weak signals was an invention as great as radio itself, because it made long-distance communication possible.

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Category Information : Home Services

This is our Home Services category. If you are interested in Home Services, 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 : Donmar Heating & Cooling
We believe in clean, comfortable air is a right, not a privilege, and we work tirelessly to help our friends and neighbors in the Fairfax area breathe easily. We have the heating and cooling system...
http://www.donmarcompany.com
Website preview thumbnail for : AA Best Choice LLC
The best heating, air conditioning, and refrigeration service contractor in the Waukesha area. We are a professional company which is known for their reliable and reasonable work. We have over 25 y...
http://aabestchoice.com
Website preview thumbnail for : Aaron Plumbing Heating & Contracting
Since 1977, we have been the plumbing, heating and remodeling contractor of choice for lots of homeowners north of Boston. We have built a very successful business for over 30 years by placing our ...
http://www.aaronplumbing.com
Website preview thumbnail for : Advanced Home Energy
What does specializing in home energy efficiency mean? In short, we do anything and everything that lowers your utility bills. We view your house as a system of interdependent parts, each one affec...
http://advancedhomeenergy.com
Website preview thumbnail for : Hire Contractors Online
Is born out of a vision to provide an online portal to connect contractors and buyers (home owners or commercial property owners) with each other. Our goal is to bring people in need of constructio...
http://www.hirecontractor.com
Website preview thumbnail for : Affordable Handyman Services
In Atlanta, specializes in small to medium-sized residential home repair projects.. All of our craftsman have been pre-screened and are insured and have a minimum of 15 years of quality experience ...
http://www.affordablehandyman.net
Website preview thumbnail for : Topbest Pest Services, Inc
Is committed to providing the best continuing pest control solutions to both residential and commercial establishments through state-of-the-art technology that is non-toxic, environmentally-sound, ...
http://www.topbest.com.ph
Website preview thumbnail for : Los Angeles Rug Cleaning
We are passionate and particular about our Persian rug cleaning process and Oriental rug washing. Persian rugs are known worldwide for their artistry and beauty. Many argue that Persian weaving has...
http://www.losangelesrugcleaning.com
Website preview thumbnail for : Showers n Baths
Welcome to Showers n Baths: Offers a wide range of leading steam showers and whirlpool baths amongst fixtures and fittings for the bathroom. Since 1990 over the many years of trading we have becom...
http://www.showersnbaths.co.uk
Website preview thumbnail for : Shower Cubicle
Providing a superior selection of steam showers, steam shower baths and hydro massage showering systems. Each unit comes with a vast array of technical features including television, radio, telepho...
http://www.shower-cubicle.co.uk
Website preview thumbnail for : Pinnacle Home Products
Hi! Welcome to Cabinet Giant, the best place on the entire planet to buy kitchen cabinets for your home. What makes us the best choice? We're glad you asked! We Have The Best Prices: We work night ...
http://www.pinnaclehomeproducts.com
Website preview thumbnail for : Custom Closets
Welcome to California Closets Connecticut: Custom storage is so much more than just a practical solution in your home. It adds a true feeling of elegance to any space. It fits perfectly into your ...
http://www.californiaclosetsct.com
Website preview thumbnail for : Abbey Home Elevator
As California and Arizona's premier provider of home elevators, dumbwaiters, stair lifts, wheelchair elevator, house elevator and access lifts. Abbey Home Elevator aims to fulfill the needs and exp...
http://www.abbeyaccess.com
Website preview thumbnail for : United Air Temp Heating & AC
We now have tens of thousands of systems under contract. More than 80 percent of our residential contract customers renew every year. Each year thousands of new customers looking for the best servi...
http://www.unitedairtemp.com/smaryland.html
Website preview thumbnail for : Fashion Window Treatments
Is your online one-stop place to shop for semi-custom and custom window treatments, bedding, decorative pillows and home decor accessories. We have a wide selection of transitional and traditional ...
http://www.fashionwindowtreatments.com
Website preview thumbnail for : Ace Plumbing & Rooter
In San Francisco is the premier plumbing contractor performing 24 hour residential and commercial emergency plumbing services throughout the Bay Area. For plumbing, water heater installation or sew...
http://www.aceplumbingandrooter.com
Website preview thumbnail for : Plaza's Over Head Doors Co.
Is your one stop shop garage door service Company in SoCal. area. Looking for installing a New Garage Door or need an emergency garage door service or general garage door repairs, come to Our Plaza...
http://www.plazasohdoors.com
Website preview thumbnail for : Aarco Bath Systems
Aarco Bath Systems is a family owned and operated business servicing the greater Illinois / Chicago land area for 48 years. We have Re-glazed over 100,000 Bathtubs.
http://aarcobaths.com
Website preview thumbnail for : Air Advice Heating Cooling
Air Advice Heating & Cooling, LLC, has many years of experience operating, installing, and repairing all makes and models of air conditioning units. We are committed to offering quality AC repair i...
http://airconditioningorangepark.net
Website preview thumbnail for : Jack Frost Heating & Air
If you’re looking for high quality and personal service, you’v come to the right place. At Jack Frost Heating & Air conditioning Inc. we’ll give you the attention and personal ...
http://www.jackfrostheatingandair.com
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Regardless of whether you're a skilled heating technician or perhaps are interested in the Heating and cooling marketplace then this article may be for you.

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Website preview thumbnail for : K9 Leather
Hand Made Leather Dog Harnesses, Leather Dog Collars and Leather Dog Leads, our products are made from the finest bridal leather, all dog collars, dog leads and dog harnesses that we stock are made...
http://www.k9leather.co.uk
Website preview thumbnail for : Bsue Boutiques
Offers vintage look chains, clasps and earring findings, jewelry stampings, tools and glue.
http://www.bsueboutiques.com
Website preview thumbnail for : Branded Basics
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.
http://www.brandedbasics.com
Website preview thumbnail for : Citizens Bank
Open a Citizens Bank account and discover convenient online banking features and the personal finance options that you deserve. Choose a checking account or high interest savings account that fits ...
http://www.citizensbank.com

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