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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

Why do many laser pointers produce a red light?

Because the red ruby laser is the cheapest. Green lasers are usually more expensive. And the blue lasers found in blu-ray players are even more expensive.

What is the most powerful laser colors?

The CO2 laser is used for cutting steel as a routine industrial process, and with an excellent surface finish. These operate in the infra-red at about 10 micron wavelength.

However, insofar as the colour itself is concerned, the higher frequencies (blue and violet) contain higher energies.

What happens to 12 volt battery with 6 volt charge?

The battery will attempt to charge the charger since the battery is at a higher voltage than the charger. Thus, the battery will simply discharge and generate heat. If you leave it plugged in long enough, eventually the battery will discharge to a point where it can maintain only 6V, where it will stay until you actually charge the battery.

What website do you go to play pimp my ride virtual?

vmtv.com is the website to play virtual laguna beach with the segment of Virtual Pimp My Ride, this answer is provided to you by STEVENMEDLEY.COM

How do you accept friend requests on xbox 360?

click the middle button that will get the dashboard then go to friends find there name click on it and it should say accept Or shmoxrsy,utc,i

Advantage and disadvantage of emi?

emi in electronics is electro-magnetic interference. I do not know of any advantage as it always interferes. A high db reading of emi shielding is good. Electro-magnetic waves are present everywhere and the problem is keeping them out of our electronics as best as we can. An additional problem is that all electronics produce electro-magnetic fields.

Can cr2032 lithium button cell be recharged?

Recharging lithium CRxxxx batteries is not generally possible due to the chemistry and components used in these button batteries. In fact, recharging them can cause them to leak, become very hot, burst, or cause a fire.

There are similar sized Lithium Ion and Lithium Polymer batteries that can be recharged, though they are rare.

What is the life of a solar battery?

A batteries life span is a direct result of how it is treated. Batteries are like electronics, if you want them to last, take care of them, protect them, keep them fully charged, and keep them at ambient temperatures.

WHY?
A battery is a chemical reaction in flux.
When not fully charged, it decomposes.
A cold battery works harder to provide power (cold retards the chemical reaction).
A hot battery works harder to charge (heat retards the chemical recharging).
Fully discharging your battery reducing the number of cycles you should expect by a factor of 2-4x (Keeping the chemical reaction in the middle is easiest on the system).

Now remember, each manufacturer has different specs. I have seen published specifications on batteries as low as 300 cycles at 50% DOD. However, for premium batteries, like the Sun Xtender AGM solar batteries, you should see 1000 cycles at 50% DOD and nearly 1500 cycles at 40% DOD.
www.sunxtender.com/manual.
If you cycle your system once daily, to 40% on average, you should get at least 3-5 years of service from the system. If your batteries are inside and you cycle to 40% on average, expect to see 4-8 years of service.

If you drain them all the way down, they can die in 6 months.
For more information look at these links.
http://www.bdbatteries.com/sunxtendertest.php
http://www.sunxtender.com/pdfs/Sun_Xtender_Battery_Technical_Manual.pdf

Viscosity of petroleum?

viscosity is the fluid resistance against flow
oil viscosity units is centipoise or centistoke (cp)

What is a PID number?

In reference to Linux, PID is Process Identification Number.
3 digit number on the back of credit cards.

In unix systems, a PID is a process ID. It is generally a 15 bit number, and it identifies a process or a thread.

What is the most powerful business 2-way radio you can get that doesn't require a license and where can you get it?

Look for MURS, (Multiple User Radio System) radios. They can be found in a lot of tool and contractor supply catalogues and on the internet. They are 5 watt, (I think) radios and do not require a license for handheld operation. Anything that has a higher power such as GMRS or other business-type FM radios does require an FCC License. Unlicensed operation of one of these radios can be very expensive if you get caught. Hope this helps.

What is better xbox 360 or PS3?

I think ps3 is so much better than xbox 360 cuz u dont get a bad 4g harddrive instead u get a 160g harddive. I suggest that if u like to play online and u want a good online service xbox would be the one. But the good online is the only reason people get xbox. If u dont want to pay for online then u should get ps3. Its online is ok, but its not as good as xbox. Also ps3 is better cuz the controller isnt so big like the xbox controller. Xbox controllers are really big and if your looking for something to be able to grip and hold in your hands while u play a game ps3 has the controller for that.
If i didnt convince u enough to get ps3 i will give u one more reason. Ps3 has better exclusive games such as, uncharted 3,littlebigplanet 2,mlb the show, resistance and more. I hope u get a ps3 its the console for u

PS3 also has portables like the PSP and PS Vita that work with the PS3 and can store stuff on the PS3 harddrive. Xbox does not have a portable system and there online does not have all the new state of the art servers Playstation just purchase last summer. So how can it be that much better online and must be more of the old news like lower priced and more games. Playstation Plus gives you free games and downloads and costs the same as Xbox live. Does Xbox live give free games or discounts. PS3 also has Playstation Home and both systems were designed to be online and you lose by not having an internet connection.

How do you add music playlists to PlayStation Vita through itunes I'm using the 1.8 firmware?

The easy way is to just set the music folder of the content manager assistant on your PC/Mac to the itunes folder. After you connect the Vita and go into playlist it should find everything.

Why do car radios get better reception than home stereos?

That's generally because the `front end' of the receiver is designed to be more sensitive than home receivers. This is mainly because the unit is almost always under varying conditions and with a higher sensitivity, it's able to provide a cleaner, more solid reception. This is partly due to the short length of the antenna that cars have and also because designers have responded to customer's complaints over the years that the car radios weren't able to pick up a station without fading out under bridges and when surrounded by large buildings.

Where do you look to see how old your tamagotchi is?

on the versions 1-v4.5 go to the first icon( the icon where you see if your tamagotchi is hungry or not or press the far left button once) and continue to press it to see how old your tama is!!!!!! dont press too fast!

Can you use Duracell rechargeable batteries in an Energizer recharger all NIMH?

Provided the batteries are the correct voltage (You shouldn't have to worry about this, as an odd size battery won't fit, though it is worth mentioning) and chemistry it should be OK. A NiMH charger should be OK on all NiMH batteries, but not for Li-Ion or other types.

How do you use a trainer toolkit for ds?

For more information I would HIGHLY encourage anyone to download the Datel Trainer Toolkit Manual at: http://us.codejunkies.com/support/article.aspx?article_id=388

How many kwh are used per day by an average person?

Somewhere near 30 KWH

Are you kidding? I'm looking at my current bill and I'm sitting at 5.93 kWh/day.

...I think the question needs to be clarrified. The first answer includes usage OUTSIDE OF A HOME, keeping in mind that you don't see the electric bill for your office, and the second is an average HOUSEHOLD CONSUMPTION ONLY.

How do you load pictures on to a PSP?

Plug it into computer, Open my computer find icon removable disk or the icon that wasn't there before you plugged in your psp. Double click on the storage device Icon and in there one of the folders is where you put your pictures. After you drag and drop the pictures they should be veiwable on your psp under pictures after you unplug it from your computer. Remember never plug a powered up device into a computer that is already on. Make sure to rename the pictures with DSC00..... so on the image name starting should be like this.(bindukiran)

When was soldering invented?

About the same time as its original constituent metals - Lead (Pb in Chemistry) and Tin (Sn in Chemistry) - were discovered several thousand years ago.