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Consumer Electronics

Ask questions here about the electronics you use every day: from phones and computers to kitchen appliances and radios.

4,952 Questions

How much space will a 30 minute video take up on a iPod touch?

Depends on the video quality. Higher quality videos take up more space than lower quality videos

How do you connect back to World of Warcraft servers after being a part of private servers and if your realmlist file has not been changed I have also re-installed the game. Please Help?

This happened to me to but this may help

move the world of warcraft folder (the whole folder) onto the desktop MOVE NOT COPY

and then change the realmlist. you can keep it on the desktop

NOTE: the wow shortcuts will not work after you move the folder but u can make a new one ;)

In a laptop battery what meens Type D5318 rating and mAh?

D5318 IS THE STYLE OF BATTERY. MAH STANDS FOR MILIE AMP HOURS AND IS THE RESERVE POWER OF THE BATTERY, THE HIGHER THE NUMBER THE LONGER THE BATTERY WILL GENERATE POWER. OF MAIN IMPORTANCE IS THE VOLTAGE IF THE OLD BATTERY IS 11.1 VOLTS, THE NEW MUST BE THE SAME, NOT HIGHER OR LOWER

In terms of molecules moving how a does a thermos bottle keep hot liquids hot and colds liquids cold?

If you look inside of a thermos you will see metal. This absorbs the heat or the cold and keeps it that way for as long as the contents are in the thermos.

Who sells the best prepaid phone cards online?

To find the best phone card retailer online, just search Google or Yahoo for "phone cards" (no quotes). The first page typically contains the better choices. You will see 10 listings, be sure to compare the ones that you feel most comfortable with. I've used a few of the companies listed, but have a preference for Speedypin phone cards because of their guarantee--it makes me feel like they care about me as a customer, which is nice. Hope this helps, and good luck finding a good phone card for your needs.

The metal lead of p type of one pn diode connected to the metal lead of p type of another pn diode makes a npn transistor?

No. You cannot create a transistor by connecting two diodes together. There is an interaction between the junctions of a transistor, said interaction being not possible when two diodes are connected together.

What is a good recorder to record your band with in your basement?

I had a friend that recorded and no recorder is going to work well bouncing off walls in a basement. My friend lined his walls with eggs cartons and got great sound with no bounceback.

What movie making programs are compatible with pivot?

Any of the editors that allow you to dock/undock and stretch screen ... I use Adobe Premiere Pro CS 3 and I imagine it'll work...

How do you program a CodeDodger Wireless Keypad?

CodeDodger® Access Security System is a digital code changing system used by Overhead Door® garage door openers to prevent someone from "grabbing" a radio signal that openers your door. It prevents illegal entry from remote controller access code signal duplication. You can only get the programming instructions from Overhead Door.

On-line instructions are at this web address:

http://www.overheaddoor.com/Overheaddoor.aspx?id=226

Or you can call their customer service department: 800-275-6187.

This is written on the user manual of an electric shaver that it should be charged continuously and when the battery is low. Why is that?

The electric shaver appears to be capapble of operating on both mains electricity and the internal battery.

Mains electricity will keep the battery recharged but if you use the battery to run the shaver then soon or latter the battery will run out of elctricity. Battery Low means No Working Shaver.

How do you measure the power of a microscope?

The eye-piece multiplied by the power of the lens

Eye-piece: 10

lens : 50

500x magnification

Who are some famous scientists who contributed in the field of electricity?

Andre Ampere

Andre Marie Ampere was the first to explain the electro-dynamic theory. A permanent memorial to Ampere is the use of his name for the unit of electric current.

George Ohm

George Simon Ohm published, "The galvanic Circuit Investigated Mathematically". His theories were coldly received by German scientists. His name has been given to the unit of electrical resistance.

James Watt

James Watt invented the steam condensing engine. His improvements to steam engines were patented over a period of 15 years, starting in 1769 and his name was given to the electric unit of power, the Watt.

Thomas Edison

A really practical DC (Direct Current) generator was built by Thomas Edison. Edison's many inventions included the phonograph and an improved printing telegraph.

Joseph Swan

Joseph Swan nvented the incandescent filament lamp and within twelve months.

Swan and Edison later set up a joint company to produce the first practical filament lamp. Prior to this, electric lighting had been my crude arc lamps.

William Thomson (Lord Kelvin)

He made important contributions to many areas of Physics including electricity, magnetism and thermodynamics. He was created Lord Kelvin for his work on the first transatlantic cable.

Is electronic equipment a nonrenewable resource?

Electronic equipment is made of many substances, including rubber, metals, glass and plastics. Metals in general are non-renewable. In general, plastics are non-renewable as they are derived from oil. Glass is renewable resource, but we are consuming fossil fuels to transform silicon particles (sand) into glass. For this reason, glass should be recycled.

More importantly, there has been a huge turnover of electronic equipment, creating hazardous conditions when disposed in incinerators or landfills. The disassembly of electronic equipment and re-use is a growing and important industry.

There is a worldwide effort to recycle or carefully dispose of the plastics used in all electronic equipment (from telephones, televisions, cameras, computers, fax machines, ipods, and many others) as there are chemical hazards (heavy metals in particular) to the environment when large quantities enter landfills.

You can find out if there are special measures being taken in your community for recycling computer equipment. All the major manufacturers of PC's are aware of "e-waste."

I've included some links.

Why was solar panels invented?

Solar panels were invented to be used as a diverse method to bring renewable electricity to the world and to decrease the amount of pollution caused by other methods.

How do you obtain an ATEX certificate?

An ATEX certificate is needed to demonstrate that an equipment can be safely operated in a potentially explosive athmosphere created by the presence of flammable gas, vapour, mist or clouds of combustibe dust. ATEX certificates are issued only by European Notified Certification Bodies, such as PTB or DEKRA EXAM in Germany, CESI or IMQ in Italy, BASEEFA in UK and many others. The ATEX Certificate, officially known as "EC Type Examination Certificate", is issued following the examination of the equipment Technical File and testing, according to the relevant standards that are applicable for each specific type of explosion protection applied to the equipment, such as flameproof or dust proof containers, intrinsically safe electrical devices, etc. Once the ATEX certificate is obtained the manufacturer must also get form a Notified Body a certification of the production: it is a control of the manufacturing activities based on ISO 9001 and focused on the ATEX requirements of the product. The basis of ATEX certification is the European Directive 94/9/EC, you can find almost all official information here: http://ec.europa.eu/enterprise/atex/indexinfor.htm.

Uses of Electrical joints and splices?

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Is there really a need for more advanced technologies?

Technologies are what humans use to survive. Better technologies usually offer better means of survival and/or greater comfort in our daily lives.

There are always cost/benefit issues with the introduction of any new technology, but need or not humans will always pursue the creation of new and "better" technologies: we create technologies and our technologies create us anew.

How much is a HAM radio worth?

Amateur Radio (ham) sets are of varying quality and design. Some are quite simple and others are very elaborate, each doing basically the same thing which is transmitting a radio signal over the airwaves for non-commercial use. Ham radio operators require licensing by the FCC in the United States.

How do I change the battery in a arnette watch?

My jeweler took my Arnette digital world time watch apart and said the battery could not be replaced...it was a "permanent" battery. Huh?

Find another "jeweler". Yours probably broke something or is an idiot. Just do this:

Take the band off by inserting a thin awl or other slim pointed object in the small openings on the underside of the watchband where the band attaches to the square face. Catch the lip of the pin that holds the band to the face and gently push it sideways. This will compress it and the band should pop off. Repeat for the opposite side and remove the band completely. With the watch-face, face down, notice a small dimple on the top center lip. Using the awl again of a small jewelers screw driver, wedge it in that dimple and pop the back off gently. The battery is now exposed. Gently pry off the metal band holding the battery in place and pop off one side. Do not try to unscrew the tiny screw on one end of that battery secure band. Remove the battery and insert a new Lithium AR 2030 battery ($2.79 for a five pack on Amazon with free shipping or any Walgreens or similar store). Snap the thin strip back over the battery to secure it. Replace the back cover and carefully snap it back on. Be careful the threadlike seal is not sticking out but is in place before snapping the back on. Reattach the band in reverse of how it was removed. You're good to go. Just be careful and gentle.