Wireless Communication

When you speak into a cellphone an analog to digital converter chip converts your voices sound waves into a digital signal. Then a digital signal processor compresses the digital signal. The compressed digital signal is then transmitted as a radio wave through the cellular network. The digital signal processor on the receiving end, decompresses the incoming message, an amplifier boosts the signal to make it loud. Then its passed to the speaker. The end............

DJ

in my opinion 70% harmful..... LOL

they were so big they wouldn't fit in your pocket

It is the memory in side the memory chip

The United Kingdom mobile phone networks that I know of are: * O2 * Orange * T-Mobile * Vodafone * Vigin Mobile * 3 If you know of any more United Kingdom mobile phone networks, please add them to the list above!

Yez sir u sure can all u need to do is flash the phone u wanna use for virgin mobile.

no it should not be allowed in schools

T-Mobile does not offer free text messaging per say. However, unlimited text messaging is included in most of their plans. For example a 1 line unlimited talk and text plan is $59.99 a month right now.

Texting may effect your health in school. In that case it may also effect your eyesight.

To many abbreviations may effect your spelling, your brain, and learning for younger kids especially! If you text to much you don't get enough exercise which causes you to lose your learning disability.

-Mariah Waldrop

Yes through flashing.

89% of drivers use their cell phone while driving

To give lady gaga song ideas.

they have a micro chip and memory card

Yes, as long as your cell phone is programmed as "set automatically" under its settings. If you have it set as 24 hour time (where you manually enter the time), then you will need to change it yourself.

well i think the posive impact is that phones are useful for comunicating and the negetive impact is that they are expensive.

maybe that have the phone call

"~>nAmE<~"

or

"end transmission"

or

"this message will self-destruct"

"im a retart"

"pants explosion!"

"toilet flush"

"Y r u txting me"

if a guy "I'm a fungi"

"....wow....."

"no comment"

"nIce t0pIc =.="

"Month/Date/Year"

~> "333" - Half Evil" <~

my phone holds a lot of characters but.. "CuzPurpleSpidersLiveOnTheMoon" or "CuzBandIsSexy" for ppl in band haha

You will ring the service provider give them your IMIE to block the phone for someone who fidns it and then they cannot sell or use the phone, then buy or tell your insurance(if any) and get a new one.

Standard cell phones do not meet the international safety standards for use in hazardous areas. Intrinsic safety is one of several methods used to ensure worker safety while using electrical appliances and equipment in gaseous hazardous area. For standard everyday use cell phones the added cost of meeting these standards would massively increase the cost of the handsets and, because the standard defines various levels of gas hazard it would be impossible to educate all users as to what is safe and what is not each hazard area.

The hazardous goods industry including all of the major chemical and petrochemical manufacturers and refiners operating in developed countries apply one or more of the various international safety standards. This is either by regulation from worker safety bodies or by the individual company's own OH&S regulations.

International standards for "explosion protection" provide technical standards and methods of testing for all electrical equipment used in hazardous areas where it may, through either design or fault or malfunction cause a spark or "hot spot" which would be capable of igniting the types of gases in the area.

The explosion protections standards used in Europe are from the International Electrotechnical Commission and enforced and regulated through the Government mandated ATEX regulations. The approvals are based on meeting typically either the IEC standards (IECEx) or Cenelec Standards. These standards are also now commonly accepted in the USA where section 500 of the National Electrical Code regulates and defines compliance. Other standards typically accepted in the world are from Underwriter's Laboratories or Factory Mutual (USA) as well as CSA (Canadian Standards).

Intrinsic safety is one of 9 methods of explosion protection. Intrinsic safety infers that the unit is "intrinsically safe", i.e. it cannot cause an unsafe situation due to it design. The design criteria typically demands multiple (sometimes triple, depending on the application) layers of electrical protection (safety barriers) to allow multiple faults to occur in the unit and yet still allow compliance. Other type of protection, often mistakenly called "intrinsic safety" include encapsulation, oil filled and enhanced protection, Ex e.

Very often we hear the myth busters type comments of "we can't make it ignite the gas". These safety standards go one step further than the typical uneducated and/or unscientific approach and take into account faults and fault tolerances, and provide multiple layers of protection against such occurrences.

Major manufacturers of explosion protected equipment are: Cell phones are available from Ex Technology www.dcaexpro.com (Australia) and Ecom Instruments www.ecom-ex.com(Germany). Other intrinsically safe hardware is available from such reputable manufacturers asPepperl & Fuchs www.pepperl-fuchs.com (Germany) Crouse Hinds www.crouse-hinds.com/ (Germany) , MTL Instruments www.mtl-inst.com (UK). There are also a lot of unscrupulous fringe suppliers who infer compliance so be be careful. Buy from the manufacturer to ensure safety. It is easy for unscrupulous suppliers to put some labels on a handset and call it safe.

Connect the positive post to the negative post. You could use a paper-clip, but it might become so hot it might start a fire, catch the battery on fire, and make some explosions. I LIEK EXPLOSHUNS you might say, but they are dangerous. Scary. Bad. Hide.

There are definitely advantages of cell phone cloning. For example, if your phone fell in the toilet and you needed an exact replica to convince your parents of responsibility, it would be the perfect disguise.

yes it is illegal and depends on the kind of person but it is not a formal

He's either doing something that he doesnt want you to know about. i.e. cheating, talking to exgirlfriend, hanging out with that "bad influence" freind you told him was no good; OR he doesn't want you to know his personal life because he doesn't trust you, even if he has nothing to hide. Either way, has time in the bedrooom lost its steam? Try to start there.... he'll forget all about his cellphone.

The second I - Phone that was invented was in 2008. It's the same thing as all the other I - Phones but it has less apps and other stuff. Some don't have a camera etheir. Now they do. So if you have an I - Phone or want an I - Phone I think you should get the newer ones because if your also going to use it for school and playing games then you should get the new ones but by the way if you play games on it then your battery will run out fast. If you get a samsang that is new and touch screen you can get a camera games and music just like the I - Phone but better.

no because the phone can get into water and you might be in a dangerous seriously problem.

so i guess no it is not safe to talk on the phone while taking a bath.

+++

A dangerously seriously problem eh? :-) The battery voltage is too low to hurt you, and anyway flooding the phone will bath-water will simply short everything out internally. An accidental drop into water may not harm the electronics board if the device is opened & rinsed with de-ionised water straight away, with battery out, then allowed to dry thoroughly, but the display may be damaged beyond repair.

The real precaution is to leave the 'phone in another room, switched off (yes, they do have that option!) - and you can relax in your bath knowing no-one will disturb you!