The practical application of knowledge, especially in a particular area, is called technology. Advances in technology affect every area of our lives. This category is for questions about technology and includes everything from how to remove a scratch from a CD to applications of electronics to what polyester is made from and more.

106,605 Questions
Computer Hardware
Home Electricity

How do you rate a surge protector?

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The Difference Between

Can you undo a delete on foxtel planner?


Gran Turismo

What are the negative effects of modern technology on human life?

one bad effect of technology on life is that with more technology placing barriers between people, face to face meetings happen less.

This small, simple change leads to a whole host of very serious problems with society in general. People are becoming more lazy; choosing to stay at home and play video games than go to a basketball game or get together with friends.

On top of that, the new barriers that are made because of technology gives those who are most effected by them a decaying sense of pride in their country. In fact, it is this lack of pride that has spurred many of the anti-American feelings that are felt and publicized by people of this very country.

Not all technology is bad or evil, but we do need to be careful that we don't become slaves (meaning obsessed with, not actual slaves) to our own creations. newspapers and local agencies and music stores have been forced to shut down since items are available online.

Also, the more technology that we create the more technology that we dispose of. This problem is exponentially growing. Practically everyone has a cellphone which has a life span of about 3 or 4 years, when we replace them they are usually thrown into a big pile and left to leach harmful agents into the environment.


Why is there gold in circuit boards?

firstly, Only on Certain circuit boards. secondly, gold is a malleable, non-corroding/rusting conductive metal. gold has the lowest resistance to the flow of electricity through it; this side of a superconductor.


Which system does not get its cooling effect by turning a substance into a vapor?

There are a few techniques to cool something with out turning it into a vaporization.

The Peltier effect causes heat to migrate from one side of a junction between two metals to the other if a current is applied. Practically this cause one side to get hot and the other becomes cold.

cooling by conduction is another was to cool something. By circulating a cool liquid through a heat exchanger you can cool another stream that come in contact with the heat exchanger.

The last method that I can think of is a when stream of compresses gas is blown through an orifice and is subjected to a rapid pressure drop. This is how heat pumps and refrigeration cool their refrigerant but the gas does not have to vaporize for there to be a temperature drop. and prop in pressure in a stream of something will produce a corresponding drop in temperature.

Heating Ventilating and Air Conditioning
Home Electricity

Is a gas electric generator cheaper than public utilities?

Typical pricing of public utility will be always less than gas generator.

Computer Hardware

What are the types of Optical Mark Reader?

OMR or optical mark reader integrates optical technology and electronics to do data inputs hundred times faster than manual entry methods and is extensively used in multiple choice examinations ,statistics,data input etc

The OMR types depends on

1.The accuracy needed

eg;In case of a question with four options out of which one is to be made black using pencil, if an option is more than 75% blackened ,modern OMRs will read it while first generation OMRs wont.

2.The cost

3.The security and anti tampering of data

The main parts include an OMR scanner and an OMR sheet printer and a data entry and transfer software.

There are mainly 3 types of OMRs.




Different compnaies like NANHAO,DEVOSOFT,AXIOME produce different versions of the above said version which cna range to upto 40 types of Optical Mark Readers

The difference among the three types lies in

1.The nature and dimensions of paper used for entry n scanning

2.The number of photoelectric sensors used and its efficiency (2,4)

3.The number of reading done for a single sheet for added accuracy( twice,thrice)

4.The size of the machine and software used.(windows based,linux based)

5.The barcode used(128,39,25)

6.Operating temperature and other parameters

Image and Graphic Editing
File Formats

What are the major cellphone image formats?

The .jpg or .jpeg file extensions are the most commonly found on a mobile/cellphone. Sometimes you may come across larger images with a .png extension, these images have better quality and support transparency.

Car Stereos and Speakers
United Kingdom

What is the PIN for talktool bt2800?


Math History

What is the 8x8 rule of slides?

The following is an example of 8x8

the rule is to have

no more than eight lines of text per slide

and no more than eight words per line.

8 x 8 rule is to help us to

not overwhelm our audience

ensure that they can read the text.

works if you use only key words / phrases.

or in paragraph format.

the 8 x 8 rule of slides is to help us not to overwhelm our audience with too much information and it should ensure that all the members of your audience can view and read the text. the rule is to have no more than eight lines of text per slide and no more than eight words per line. You should be able to stick to this simple rule if you use only key words or phrases.

what is easier to read and get the main point quickly


How can technology hinder us?

There are no negative things about technology, just negative people and negative use of technology. However, sometimes it gets us in trouble. All technology is good when properly used in the best interest of all life.

Well, I should write some comment which might oppose some of our friend's contribution earlier on.

Technology nowadays restrict us from two things: one is social life and another one is creativity. WHy I say these?

Well, if you jump into the internet very well known as Google, you could find designs for many things which might be your homework or any office work, which might make you lazy sometimes to copy-and-paste that idea into your work and not forgetting how Facebook is impacting someone's social life of interaction.

This is what I think.


What's the formula for circumference of a circle?

C =2×PI×r ,,, PI=3.14

r= the circle radius


What is a platen in Plastic manufacturing?

The platen is the part of a machine that one half of a mold attaches to. The mold is normally created in two halves.

In plastic manufacturing injection molding, each mold half is bolted, clamped, attached to one platen. One platen is normally a fixed or non movable and the movable one slides on Tie Bars that go through the four corners of the platen.

Waste and Recycling
Elements and Compounds

What are advantage of metal for furniture?

There number of reasons, for example, durable, flame-retardant, and it's very hard to wear out.

It definitely makes it more stable and gives a support to last it longer. I've always been pro wood furniture, until I talked to one of the girls on dream marriage who told me that her metal frame lasts since her childhood.


Who are the characters in federigo's falcon?

Federigo di messer filoppo alberighi

monna giovanna

monna giovanna's son


What are the consequences of running a hot server room and why?

Hot server rooms will cause the premature failure of hardware components such as hard drives and CPUs. A hot room will make it more difficult for servers' cooling systems (usually fans) to keep components from thermal expansion, which begins to cause errors and crashes.


What changes do you foresee in the next five years?

Consumers, and businesses, will become much more mobile, and the line between people and technology will become blurred as no-touch interfaces are perfected. The majority of people in developed, and rapidly developing countries will be connected 24/7 as just about everything we interact with becomes a computer. All our computers in our homes, our cars, on our person, and even objects on the street will interact with our smartphones and with each other, seamlessly.

On the horizon:

  • Nanotechnology will become better and cheaper to produce.
  • Bionics will be vastly improved, making life better for people with disabilities by replacing lost and damaged body parts and allowing them fuller, more "normal" lives.
  • We will start powering our mobile devices with both solar and kinetic energy, using the natural motion of our bodies.
  • Passwords replaced by retinal scans and voice print or finger print recognition.
  • 3D printers will get better, cheaper, and faster, creating a booming business in downloadable patterns.

This is all based on technologies we know. There will be new technologies, and new advances we haven't even imagined yet.


What is a primary partition and an extended partition?

In the days of MS-DOS, Microsoft deemed that no single hard drive would ever need more than four file systems at once. So in order to make things simple, Microsoft only gave hard drives the capability to hold 4 partitions (at this time they were simply called 'partitions', instead of their modern term 'primary partitions')

However, there came a need for drives with more than four partitions. What Microsoft did is they added the ability to add a second partition table. In order for MS-DOS to remain backwards compatible, they placed this second partition table in a place pointed to by the the fourth partition of the original table. This new 'extra partition table' is called an Extended partition, and it acts like a container for additional partitions which can fit inside of it (called Logical partitions)

In this way it's possible to have more than 4 partitions by having 3 primary parititions as well as an extended partition which can contain several logical partitions which will also show up as drives on your computer.

The Difference Between

How can you define energetic?


I would define that in technical terms as "powerful in action".

Business Etiquette

Types of feasibility tests in system analysis?

I actually don’t have any clue because you guys should know


What are four manual jobs?

These jobs like, Painting, cooking, sweeping and cleaning


Will VHS tapes still play after change to digital TV?

Yes. You just need a VCR plugged into your TV. Having a digital converter box going to your TV has nothing to do with being able to use a VCR or DVD player.

Interior Design

Is chrome stronger than brass?

Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. Brass is a sof metal, known for its low melting point and high malleability

Chromium is a chemical element which has the symbol Cr and atomic number 24, first element in Group 6. It is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odorless, tasteless, and malleable.

The relative high hardness and corrosion resistance of unalloyed chromium makes it a good surface coating, being still the most "popular" metal coating with unbeatable combined durability. A thin layer of chromium is deposited on pretreated metallic surfaces by electroplating techniques

Chromium when coated over a metal also known as chrome, is stronger than brass, for it has a higher melting point and higher hardness, but it's malleability is lower compared to brass.


How do you wire 3 speakers?

????? if more than one speaker is connected to a sound channel, the speakers should Not be connected in series. there may be a resultant impedance mismatch (with the amplifier/receiver) when this is done.


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