Receive news by e-mail

#
 

Enter your e-mail in the field below to receive directly the news that appears on this page.

 

topics : related - all Explore

Shopping

Top Product

Electro-Dynamics; the Direct-Current Motor

Compare prices

  1. 2. Direct-Current Machine Design: Being Instructions for the Design of Motors and Generators
  2. 3. A Manual of Simple Engineering Mathematics, Covering the Whole Field of Direct Current Calculations,
  3. 4. Direct Current Fundamentals
  4. 5. High Voltage Direct Current Transmission (I E E Power Engineering Series)

Shopping Categories

  1. 1. Cell Phones
  2. 2. Smartphones
  3. 3. Digital Cameras
  4. 4. Laptop Computers
  5. 5. Processors
  6. 6. Motherboards
  7. 7. LCD Monitors
  8. 8. Graphics Cards
  9. 9. GPS
  10. 10. Digital Camcorders
  11. 11. Printers
  12. 12. Desktop Computers
  13. 13. Sedans
  14. 14. Coupes & Convertibles
  15. 15. 4x4

Wikio Shopping

  1. 1. Automotive
  2. 2. Beauty & Fragrances
  3. 3. Books
  4. 4. Car/Motorbike
  5. 5. CD
  6. 6. Clothing, Accessories & Shoes
  7. 7. Communication
  8. 8. Computers
  9. 9. DVD
  10. 10. Electronics
  11. 11. Flowers & Gifts
  12. 12. Gourmet & Foods
  13. 13. Health & Personal Care
  14. 14. Home & Garden
  15. 15. Hotels
  16. 16. Household Appliances
  17. 17. Jewelry & Watches
  18. 18. Musical Instruments
  19. 19. Sports & Outdoors
  20. 20. Toys & Baby
  21. 21. Video Games

Participate



Direct Current



Sort by : relevance - date - popularity
3Vote!

How About A Quickie?

It's been a while since I've built an audio kit (other than replacing the output transformer on and generally neatening up the wiring of my Assemblage ST-40 ), primarily because I've got more amps and preamps than you can shake a stick at. But I ran across one the other week I just couldn't resist: a battery-powered preamp. I've long wanted to try battery power. Although most of you are probably shaking...

7Vote!

Storing Energy Bleg

Robert Waldmann I am eager to learn from this blog again. A problem with solar and wind generation of electricity is the sun isn't always shining and the wind isn't always blowing and it is costly to store energy. I don't see why energy can't be stored using hydroelectric dams. They store huge amounts of energy in lakes. So what's the problem. More thoughts after the jump. OK problem number one is...

3Vote!

An iPod for each pupil at Essa Academy will help school to stay in touch

A pioneering school is staking a claim to make its pupils among the most technologically advanced in Britain.

3Vote!

The Best Locations For Wind Turbines

Wind turbines are used for several reasons but the main reason is to generate energy from the wind This may sound difficult but it is possible

7Vote!

Building speakers with aluminum wires and temperature variations

Scientists from the VTT Technical Research Center of Finland and the Helsinki University of Technology have developed a loudspeaker system, which unlike ever before, uses tiny aluminum wires suspended like a bridge between two supports to create a wide.

6Vote!

Desertec Is Taking Shape With 12 Companies Joining Consortium

A $400 billon (£240 billion) plan to provide Europe with solar power from the Sahara desert moved a step closer to reality with the formation of a consortium of 12 companies to carry out the work. Known as the Desertec Industrial Initiative (DDI), the German-led consortium consists of some of country’s biggest engineering and power companies, [...] Rating: 4.0/ 5 (1 vote cast)

7Vote!

Carbon Zero Road Block System

Want to have a method that your car can generate power as it drives along the road? Well, check out the Carbon Zero road block system. This concept uses blocks on the road, and as you drive over these blocks, the pressure from your car pushes the blocks down, creating kinetic energy. N-type silicon and P-type silicone work together like a battery, creating a DC-direct current. This energy is then...

3Vote!

Power from Sahara moves step closer

The German-led Desertec initiative believes it can deliver power to Europe as early as 2015 A $400bn (£240bn) plan to provide Europe with solar power from the Sahara moved a step closer to reality today with the formation of a consortium of 12 companies to carry out the work. The Desertec Industrial Initiative (DII) aims to provide 15% of Europe's electricity by 2050 or earlier via power lines...

7Vote!

GE Puts Wind Converter to Work for Solar

As utilities start to build large solar projects and solar power makes up an increasingly larger portion of the electricity mix, integrating this energy into the grid will be a challenge. Solar, like wind, is intermittent — power from the sun fluctuates when clouds pass overhead and wind doesn’t blow consistently. Now General Electric, which [...]

3Vote!

NERC: Wind and weather forecasting, plus transmission

This could make electric markets a whole lot of fun. And what creates volatility, anyway? Some might argue that in part, it results from not understanding, tracking and managing the right variables. You can’t track everything, of course, and the unknown (especially the unknowns of nature) tends to make people edgy and reactive. Bingo, volatility. From [...]

3Vote!

Digital-Multimeter-BEST-890B

Specifications: DC Voltage: 200mV-1000V ±(0.5%+1) AC Voltage: 200mV-750V ±(0.8%+3) Direct Current: 20mA-20A ±(0.8%+1) Alternating Current: 2mA/200mA/20A (±(1%+3)) Resistance: 200/2k/200k/2M/20M (±(0.8 %+1)) 200/2k/20k/2M/20M Capacity: 20nf/2uF/200uF 20nf/200nf/2uF/200uF (±(4 %+3)) Frequency: 2kHz/20kHz Inductance: 2Mh/20Mh/200mH/20H (±(2%+10))...

7Vote!

PHOTOS: What’s Hot At Solar Power International 2009

The good thing about the Solar Power International show is that every year it’s packed with companies showing off the latest solar tech advances, like prototypes of cutting edge thin film material and lightening quick robots that can stack solar panels. That’s also the difficult part: the massive three-room show floor is stuffed wall-to-wall with [...]

5Vote!

German solar company SMA to open plant in Denver

SMA Solar Technology AG, the world's largest maker of solar inverters, said Monday that it will locate its first manufacturing plant outside of Germany in Denver.

5Vote!

Germany-based solar company to open plant in Colo.

DENVER -- A Germany-based solar company plans to open its first North American manufacturing site in Denver.

10Vote!

Colorado Solar Plant To Create 300 Denver Jobs

DENVER — A Germany-based solar company plans to open its first North American manufacturing site in Denver. Gov. Bill Ritter and Denver Mayor John Hickenlooper joined officials from SMA Solar Technology for the announcement Monday. The company plans to start production next year with 300 employees and a capacity to expand the work force to 700. The plant will be in east Denver with access to...

The 3 latest articles published by users on Direct Current :

3Vote!

Solar Car Battery Chargers Can Prolong the Life of Your Cars

Solar Car Battery Chargers Can Prolong the Life of Your Cars As environmental problems generate more and more concern, interest in using electricity and solar energy to power cars grows. In order to understand the solar battery charger , you need to understand how a car battery functions. A car battery stores energy and supplies...

5Vote!

How To Build a Home Wind Turbine

How To Build a Home Wind Turbine - helpliner

A home wind turbine is specially designed to be environmentally friendly and cost saving. With the existence of harmful greenhouse gases in our environment today, it is recommended to have one of these home wind generators to reduce the amount of pollutants being produced into our environment. A home wind turbine generates electrical power by spinning a generator. This generator is attached to the...

3Vote!

Don't Get Passed Up, Research a Home Solar Power System Today

Solar Power System If you are looking for the best use of alternative sources of energy perhaps you should install a home solar power system. Solar power has advantages and they include a clean source of energy; once installed in your home the syste...