How To Create A Solar System Science Fair Project
Science fair projects are very helpful to motivate the students towards scientific study. It also provides the possibility of observing the real world and related problems in a closer way. It aims to develop curiosity about science and technology. It brings about improvement in the manipulative skills, knowledge, and self-confidence.
Solar system began forming 10 to 12 billion years ago as a swirling gas and dust formed a dense core. To visualize the Solar system, understand the orbital motion of the planets and to locate the actual position of the planets the solar system science fair projects are helpful.
Some simple solar system science fair projects ideas include answering questions such as:
- Can we collect micrometeorites from the outdoor sources?
- Could the other planets support any life?
- What causes the phases of moon and what affects the phases of moon?
- How terrestrial planets are formed?
- Are there many other solar systems in the universe? Do they support life?
To study about the other galaxies and solar system present in this universe this project will be useful. A comparative study of why life is possible on earth and why not life is possible on other planets can be done in detail. Younger children can also build a model of the solar system and show the relationships between the planets.
Also consider looking at natural forces which occur in the solar system, such as exploring a question like, how are the magnetic fields affected by solar storms? Can we build a homemade magnetometer to measure that? The magnetic fields are affected by solar storms and cause small changes in its direction at the surface, which are called “magnetic storms.” A magnetometer operates like a sensitive compass and senses these slight changes in the magnetic field. A homemade magnetometer can be constructed.
Can we identify black holes? If the answer is yes, how can it be done? By this project, the mysteries and curiosity about the black holes will take a shape and a clear knowledge about black holes can be gained. A thorough understanding of the nature of black holes is neceessary, and a lot of background information will be necessary for such a project.
You can make your own comet to know the details about the comets. A large comet is a spectacular sight and is a star like celestial body, which has a tail and still people have lots of doubts about it. To know better, this project will help out.
How to locate the position of a celestial body by a sidereal pointer? A sidereal pointer is an instrument that helps you to locate each celestial body in the night sky. How to construct a sidereal pointer easily can be discussed in this project in detail.
Solar system science projects are fairly demanding projects that represent a challenge. Each of the projects related with solar system science projects develops cognitive skills and help the students to leap forward.
The Advantages And Disadvantages Of DLP TVs
The technology behind DLP TVs has actually been around for a few yaers now, but only recently has it started to really come into it’s own. DLP stands for Digital Light Processing, and suffice it to say that the way it produces a screen image is a perfect match for the HDTV standard that will soon become the accepted method of television broadcasting.
If you haven’t heard much yet about DLP TVs, you will soon. But here are some of the advantages to their design:
1. They are great in brightly lit rooms. Because they use a reflective technology to produce the screen image, a DLP screen is less affected by ambient light than many other monitors. It can also produce a picture that has more contrast because it can produce deeper blacks than for instance, LCD TVs.
2. DLP TVs boast a very high refresh rate. The refresh rate is how often the screen is redrawn each second. The faster the refresh rate, the easier you eye can put the images displayed into a seamless picture in your mind. What this means for you is that if you like to watch sports or play fast action video games, the screen will appear smoother and more realistic with a DLP TV because of it’s fast refresh rate.
3. DLP monitors are usually compatible with almost any video source that you want to connect them to. They can even be used as a computer monitor too. Just be sure that a DLP monitor has all of the necessary connections present to be mated with the video sources that you intend to use.
There are however a few disadvantages to DLP TVs that you should be aware of too:
1. DLP screens can be viewed from a fairly wide angle from the center of the television with no problem, but they absolutely must be viewed at eye level for the best picture as the brightness of the picture falls off rapidly when viewed either above or below eye level. This can restrict where you place them for best viewing position in your room and should be a point taken into consideration before purchase.
2. Although the DLP monitor itself can last almost forever, the light source that produces the image only has an average lifespan of about 10,000 hours. That is of course, still a lot of TV viewing time, but if you have your TV on for several hours a day be aware that the clock is ticking on the light bulb and when you do replace it, you may be spending over $200 for a replacement.
All in all, DLP monitors represent a great advancement in the field of television viewing though, and the technology is being rapidly accepted and improved on. But as with any TV purchase it is best to actually demo a particular model in person before ordering it online if you choose to do so.
The Best Computer For Graphic Design
Since Desktop Publishing (DTP) came out in the eighties, graphic designers have been utilizing computer technology. This has pushed all graphic designers to become competent with computer hardware at the very least.
What is Desktop Publishing (DTP)? In the 1980s, it was a common term applied to digital publishing systems. These systems were developed to replace large, pre-press, specialist design and compositing systems.
Graphic designers rely heavily on computers whether these are Windows PCs or Apple Macs. Whichever computer a graphic designer chooses to use, he/she will opt for the best computer that he/she can purchase. Graphic designers will rarely choose cheap computer hardware.
Back in the eighties, Macs were the only choice for designing and printing. Almost all design layout and graphics software was developed for Macs only or even if the software could be used in Microsoft Windows PC, it was much more reliable on a Mac. Additionally, at that time, Macs were associated with the different technologies used in the prepress and Windows PC was just not a practical choice. Today, modern versions of Mac OS X and Windows allow graphics designers to use design software either in a Mac or PC – they are no longer forced to choose one over the other.
Many graphic designers are not IT experts and making a decision on which computer to buy can be quite daunting. Of course, if money is not a problem, the decision would simply be to buy the most expensive Apple Mac or Windows PC. But most designers cannot afford to do that. In fact, some creative professionals have budgets for second hand equipment only. What really matters to these graphic designers are issues that regular computer users do not even have to think about. These are printer color accuracy, monitor calibration, hard disk speed and external storage devices for gigabytes of data.
Recent studies show that the top 5 computers for graphic design are a mix of Macs and PCs and both laptop and desktop computers fall in this category. But just like any product that a consumer buys, it really is the personal preference of the designer whether he/she will use a desktop computer or a laptop. The important thing is that the user/graphic designer has the appropriate software for the type of computer that he/she wants to purchase.
The Top 5 computers for graphic design are:
Mac Pro Desktop
The Mac line of computers is still widely preferred by most graphic designers. According to Apple, the latest Mac Pro features the all new quad-core Intel Xeon “Nehalen” processor which makes the job of a graphic designer much easier. Apple states further that the new Mac Pro is up to 1.9 times faster than its predecessor. Each processor has an integrated memory controller that allows the processors to have faster access to stored data in the computer’s memory, with memory latency decreased by up to 40 percent. This feature will save a lot of time for designers when they do their work.
MacBook Pro Laptop
The MacBook Pro Laptop comes in 13, 15 and 17 inch sizes. It has high-performance NVDIA graphics and LED backlit display which makes editing graphics easier and clearer. This latest model has battery power that lasts up to 8 hours (on 17-inch version). It is powered by the Intel Core 2 Duo processor.
Dell Studio XPS Desktop
The Dell Studio XPS Desktop features the Intel Core i5 and i7 processors. If you plan on working with intensive video or 3D editing, you can have an upgrade to the 16GB Dual Channel DDR3 SDRAM. But its base 3GB memory will enable you to edit photos, create vector or raster designs with ease. Its high-definition ATI graphics card creates clear, precise and flawless graphics – just what a graphic designer needs.
Toshiba Qosmio Laptop
The Toshiba Qosimo is an affordable solution to your graphic design needs. It is powered by either the Intel Core i7 or i5 processor making it easier to create flawless graphics. It has a high-end NVIDIA GeForce graphics card, which ensures that you can clearly see every pixel and frame that you edit. It has a 6GB DDR3 1066MHz memory and a 1GB GDDR5 discrete graphics memory.
HP Pavilion Elite Desktop
The HP Pavilion Elite Desktop is an affordable computer. It is powered by either an AMD Athlon or an Intel Core processor that ranges from an X4 630 quad-core (Athlon) to an i7-980X six-core Extreme Edition (Intel). All HP Pavilion Elite Desktop computers come with genuine 64-bit Windows 7 for the latest technology. Memory ranges from 4GB up to 9GB which guarantees smooth and effortless run of the high-end graphics that you use.
Music Screensavers
It is important to be careful while choosing a screensaver with music. That’s because the moment the screensaver gets activated, the musical piece accompanying it begins to play. While the same visual images can be escaped by simply looking in another direction, the music surrounds the user no matter where he or she is looking. And, if the computer is placed in a common space, then in addition to the user, people who are around also need to like the music, or at least be able to continue with what they are doing without getting disturbed.
The task of choosing a Music Screensaver can be simplified if the user can identify the effect that it should have. This could be determined based on the kind of work that the computer is used for, and the personal preferences of the user. For instance, if a computer is primarily meant for home use and is located in a private space, the screensaver on it could be accompanied with music that has a well-defined rhythm, which is fast, and lyrics that need to appeal only to the user. However, if a computer is located in a professional space and is used for work, people tend to choose music that has a slow rhythm and does not have lyrics. This prevents people around from getting disturbed as well as getting distracted.
Yet the options available to a user who works in a creative environment, such as an advertising agency or a lifestyle magazine, are very different from those available to a user who works in a customer service environment, such as a legal firm or a bank. In an advertising agency, since the atmosphere is meant to fuel creativity and provide users with ample freedom to express themselves and their ideas, virtually any kind of screensaver with any kind of music is acceptable. However, people who are sensitive to others, and fear annoying them or distracting them, use headphones. When they don’t, people who are getting annoyed or distracted use headphones.
In a bank, where customer interaction is a constant, people tend to use screensavers that don’t have the potential to be intrusive, visually or musically. In fact, most banks and customer-centric companies use the screensaver to display company information with the objective of branding and advertising. The screensaver is the same across workstations, and if it is accompanied by music, the music is gentle and relaxing.
When there are no limitations, screensavers can be accompanied with any kind of music whether it’s rock, pop, jazz, hip-hop, blues, lounge, trance or any other music that appeals to the user. It could even be the sound of flowing water, gunshots, animals, and rustling leaves.
How to Fix Macromedia Projector Has Stopped Working
Macromedia projector is a stand-alone player for flash files and this error occurs frequently when you are trying to play a flash game. You can fix the error by following the instructions below.
First thing to do is to verify if the application you are trying to run is from a trusted source. If you have downloaded it or installed it from somewhere, make sure it is a trusted source. Click on “Start” and then on “computer” to select the “properties”. From “properties”, select “system protection”, and then click on the “advanced” tab. There is a performance section in there and click on the settings button in the performance section. After this, click the Data Execution Prevention tab.
There will be two selections in there and you have to select “Turn on DEP for all programs and services except those I select”. Click the Add button and then explore and navigate to the folder that your game or application is installed in. This will usually be in the program files folder. Now select the .exe file in the folder and click on it to launch the application. The error should be resolved by now. You can run your application now without any problems.
Another possible solution for those using Windows Vista operating system is to run the application which is causing the error in Windows XP compatibility mode. You can do this by clicking start, then right click on computer to select properties and choose “Windows XP compatibility mode’. This should solve the problem.
This error can also be corrected by uninstalling the software and rebooting your computer in “clean mode”. This means that all the start-up programs other than Microsoft programs will be in shut off mode. After this, reinstall the program to its default folder and it should just work fine.
Hook Up A Receiver For Your Home Theater
What is a Receiver?
A receiver is that big, heavy thing that you plug your speakers and other components into (like a DVD player, TV, CD player, Xbox, PlayStation, iPod, and etc.). Its the “brain” of the show, really. The idea of connecting all your components to a receiver is the concept of audio/video switching, allowing you to switch to different video sources (like TV, DVD, camcorder) on your TV
and thus changing the audio source accordingly – all without touching anything but the receiver.
Of course, the main purpose behind audio/video switching with a receiver is to drive audio to external speakers, like surround sound or stereo speakers.
Most receivers have a plethora of inputs; up to 8 speakers and a subwoofer (more commonly, 5.1, or five speakers and a subwoofer), several video inputs, and even HDMI inputs. You could plug your Xbox, Plasma, and DVD player into the receiver and use one remote to switch between all the different video sources (games, TV, DVD video) and have your speakers pump out surround-sound. Let’s start with inputs and outputs. If you don’t understand something, read through the entire How-To as most of it will be explained in detail.
Keep in mind that a receiver is the hub of your entire home theatre, so this How-To will actually guide you through the basics of connecting your complete home theater.
So what the heck is all this ‘stuff’ on the back of your receiver?
I’m going to go over just about anything that you would find on the back of your receiver. The one I’m basing this guide off of is a Harman Kardon AVR-247 I’m going to start from the top left of the unit and work my way to the right, then I’ll start at the left of the next row and so on.
The first three inputs are for antennas. An FM antenna cable would slide on to the first jack while two speaker wires would plug into the remaining slots for AM. Of course, you don’t have to plug your antennas in, but if you’d like AM/FM reception through your speakers, you’ll want to go ahead and do that. These are standard connections, so if you lose one of your antennas, just go buy another for a few bucks.
You’ve probably heard of composite video. Its a very basic video connection used by most any component (TV, DVD, VCR especially). Its common and its cheap. As such, its very low quality.
Composite uses an RCA cable for video (yellow) and two more RCA cables for audio (red and white, stereo). The problem is that a composite video cable combines luminance and chrominance in the same cable, reducing the quality of the picture. You lose a lot of sharpness, and the color begins to degrade from the original source. Its useful when you need the extra input or the device you’re connecting only has composite video. Otherwise, use something else, like component video. Sounds similar; very different.
S-Video is next in line after composite. It uses a different type of connector (five pins in a circle) and gives you marginally better video quality. It is also a video-only cable, so you’ll need to plug in audio separately. In this case, you’ll probably use a pair of red and white RCA cables for your audio inputs.
Next up: a ton of composite audio inputs. These inputs use left channel and right channel RCA cables, typically red and white. They look just like the yellow composite video cable, and you could even use them for video and the yellow for audio, but let’s keep the color scheme how it is 
Composite audio is the bottom-of-the-barrel in audio. Its perfectly fine for most use, but if you’re looking for high quality surround sound, you don’t want composite. Game systems, like the Wii or Xbox, and very basic DVD players are a perfect match for composite audio.
The same goes to VCRs, CD players, and anything that only has a composite audio output. Plus, if you don’t have surround sound, or your receiver is only two channels (2.1, stereo sound), you won’t be able to use anything but composite audio. Note that there is a composite audio input under each composite video input so that it is easy to match them up. Plug them in the wrong inputs and you won’t get sound when you’re on that particular video input.
Here we have one of the least-used features of a modern receiver: 6 (or 
channel direct input. This is only used for two purposes: SACD or DVD Audio. SACD is an acronym for Super Audio CD. It is a proprietary audio format developed by Sony for special CDs that are recorded in 5.1 surround sound. That means you need a CD or DVD/CD player that supports SACDs, a receiver with SACD support (as in the picture), and of course Super Audio CD’s. DVD Audio is the same idea, different brand, different media (its a DVD, not a CD!).
DVD Audio discs are special DVDs that are recorded in 5.1 surround sound and can only be played by devices with support for them. These CDs go all the way up to 7.1 surround sound, meaning you would need to have two front, two rear, two side speakers and a subwoofer to enjoy full 7.1 surround sound. Most receivers support up to 7.1 now but you won’t find DVDs with that kind of capability for movies. 5.1 surround is still the defacto standard, so don’t run out and buy more speakers any time soon.
You could skip this next little item because it is unique to this brand of receiver (Harman Kardon). The Bridge” is a proprietary connection they developed for you to connect
an iPod. You need to buy a separate component that includes a docking station and special cables to connect the iPod. It fully integrates with the receiver, displaying
menus and songs on the front LCD screen of the receiver. This allows you to easily pump your tunes through your speakers, whether it be stereo sound or full surround sound.
Of course, the music on your iPod is stereo sound, so the best you can get is simulated surround sound or stereo surround; the same music playing in the front two channels
is put through the rear and center channels. Some receivers do this more intelligently than others, but more on that later.
Here we have our high-end sound inputs/outputs. Basically the same performance wise, you have fiber optic connections (with the square shape) and digital coaxial (just like an RCA cable).
Both of these are 100% digital, whereas composite is analog. The only way you can get true surround sound from any source is by using one of these connections (or the SACD/DVD Audio option)
Almost all DVD players these days have either optical or digital coaxial outputs (sometimes, both). Many high definition cable and satellite boxes also come with these
connections so you can enjoy 5.1 surround sound on high definition channels. Choosing between the two, there’s really no different in audio quality, so feel free to use
what you’d like (or what you’re forced to).
I don’t think I need an image for the next plug. Its a pair of power inputs. One is for powering the receiver, the other for whatever you’d like. This way, when you turn
on the receiver, you give power to the other device (be it a DVD player, CD player, cable box, whatever). I don’t necessarily recommend this unless it specifically suits
your needs. It is useful if you’re running low on outlets, of course.
Something else you’ll never use: D-bus RC-5 input/output. This is used for infrared remote controls to take over your home theater system. Honestly, its not something any of us will ever use. Some of the real high-end junkies might be using something for it, but I’ve never even come across a device that uses this technology. Stick to the remote that came with your unit, or buy a quality universal remote control. There’s no need for this option. An alternate use for this may be a bit more common: if your receiver’s front panel is blocked (like inside a cabinet), you could get an infrared transmitter to latch on to the front of it. This transmitter would hook up to another device somewhere in your room that will accept signals from your remote control. The receiving device then transmits the remote’s commands to your receiver (via the transmitter you’ve attached to the front over the regular infrared transmitter).
Pre-outs , located right under the Remote in/out. Pre-outs are used when you’d like to add an amplifier to your system to boost the power (and hence volume/audio quality). Average
users will not use this for anything but the subwoofer preout. You’ll want to run a subwoofer cable from your subwoofer to the subwoofer pre-out to provide it with
the right frequencies. This is the proper way to connect your subwoofer to your surround sound system. The other inputs won’t be used unless you plan on adding
an amplifier. This is highly unnecessary for home use. You might add an amp if you’re trying to fill a room the size of a small house with enough sound, but you’re not, right?
Here we finally get to the meat of the system: the speaker inputs! Harman Kardon receivers use bind posts for connecting speakers, as seen in the picture. They
work by being loosened up as your turn them counter-clockwise, then you sneak the speaker wire in underneath the caps and tighten them back up by turning clockwise. This’ll
give your speaker wire a nice tug fit that probably won’t loosen up on itself over time. Other brands may use other types of connectors, but bind posts are very common.
You might have been able to tell this is a 7.1 channel receiver because of the speaker inputs.
You’ve got room for 2 front left and right speakers, 2 rear left and right speakers,
a center channel, and two left and right “surround” channels which are placed somewhere in between your front and rear speakers (“side surround”, or 7.1). If you have enough
speakers, you can go ahead and plug in those extra 2 side ones, but they won’t play any sound at all on a 5.1 DVD. You would need a DVD that supports 7.1
surround sound, and at this time, there just isn’t a market for it. CDs will gladly blast stereo surround through all 7 speakers, though, so for some larger rooms, that’s an
advantage.
Our final set of connectors for this receiver: component video . The best video you can get next to composite or s-video. You’ll notice its a set of three cables (all for video),
usually Red, Green and Blue. Don’t think that’s what the cable does, though – it separates the video signal by luminance and two separate color channels. In the past, component
did it in fact represent R, G, B (splitting the primary colors in transmit and recombining them at the destination device), but that is not used in current component video
connections. Component video can carry high definition signals, all the way up to 1080p, so it is the most cost effective and readily available high definition input.
Not seen on this receiver are DVI and HDMI, the two all-digital video connections.
HDMI is the newest, fastest, sharpest video and audio connection available today. Its the only cable that can carry audio and video in one – not to mention, in high definition.
HDMI must be supported by the source and the display you’re connecting it to to use all of its features. Not all DVD players, cable boxes, or receivers support both
audio and video in HDMI. Its becoming more and more of a standard now to support both. The advantage is clear: less cable clutter, higher quality audio and video. You can get up
to 1080p high definition video and 7.1 surround sound through an HDMI cable. Newer cable and satellite boxes, DVD players, high definition DVD players, and more expensive receivers
support the full capability of HDMI. Its the best you can get as all-digital goes.
The last connection for this article is DVI. DVI is also all digital like HDMI, but it cannot process audio signals. HDMI may provide a technically superior image,
but I don’t think anyone could tell the difference. DVI supports high definition video all the way up to 1080p, just like HDMI. Its being used less frequently now,
but if you’ve bought a new computer or video card for your PC recently, it probably has a DVI (or two) port on it. Most computer monitors use DVI now and video cards
have followed suit. HDMI is edging its way into the PC market, but its dominance is seen in the home theater arena.
Now that you’ve familiarized yourself with common connections, let’s plug it all together.
This part of the receiver How-To is going to guide you through hooking a 5.1 surround sound system(5 speakers and a subwoofer) with a high-definition TV, a high-definition cable or satellite box, a DVD player, and a 5.1 receiver.
Your TV & Components
Where you put your TV is dependent on how large it is, how large your room is, and where you will be sitting. If its 50 inches, don’t sit more than 10-15 feet away; but no less, either.
A 60″ set is perfect for 12-20 feet. If you have a 32 inch set, try to sit no farther than 8-12 feet away. Your receiver, DVD player, cable box, and other components should obviously be close together, but don’t place them physically on top of each other. They all get hot, especially your receiver. If you have no other choice, slide a thin piece of plywood between the components to help dispense the heat.
Lay Out of Speakers
The first step is to lay out your setup. Different rooms call for different locations for your speakers and subwoofer. If your room is a typical rectangle, go ahead and place your two front left and right speakers somewhere flush with the television on that side of the room. Your left speaker goes toward the left corner, right speaker toward the right corner. Don’t bother with speaker wire yet (unless your speakers come with speaker wire attached already; in that case, just let them dangle for now). Note that which speaker is left or right is solely dependent on how you connect them to your receiver. Your speakers aren’t actually designated “left” or “right”.
Depending on how you acquired your speakers, your front speakers could be larger than your rear speakers. That’s how you know they’re for the front. Otherwise, all your speakers are the same shape and size, and you can use each for any purpose.
One exception: the center channel. Usually, a center channel is much shorter and wider than your other speakers. It should only be used for the center channel. Sometimes, all 5 of your speakers could be the same, usually on a very inexpensive setup. You can use any of these speakers for any purpose.
Your center channel should always go either directly on top or under your television set. However you have to do this, get it done! It’s not called the center channel for nothing, you know. Any movie will pump out almost 90% of the voices you hear and a majority of the rest of the sounds through the center channel. It is a vitally important component to your surround sound setup.
Your subwoofer should always be on the floor. If it is impossible to place it on the floor, get it as close to the floor as possible. Placing it behind objections or in closets will diminish its effects. In a perfect setup, the subwoofer would be on the floor close to the TV (perhaps off to the left or right) in your line of sight. Nothing should block the side of the subwoofer that air will come out of (usually covered by a grill protecting the subwoofer speaker itself).
When it comes to finding a good spot for your speakers, you might want to mount them. You can usually buy compatible speaker mounts online or in stores. You can also
use existing shelving, buy some shelving, or place them on tables or other objects. No matter how you do it, try to keep the speakers as close to ear level as possible. A speaker mounted at the ceiling of your room isn’t going to give you the optimal aural experience.
The last thing to keep in mind about layout is speaker wire. You’ll probably need at least 100ft of speaker wire, but you’ll often find yourself using much more if you
try running wire through your ceiling, under carpeting, up through the basement, or around objects to conceal it. Take measurements and buy at least 10% more wire than
you think you need. You’ll probably use it!
Cabling
You need to know the different kind of speaker wire available to you before setting up your home theatre. If you bought an HTIB (home theater in a box), it probably came with 100ft of horribly cheap speaker wire. You don’t want that! Do yourself a favor: buy some high-quality, 14-guage speaker wire. Anything higher than 14-guage is just to thin and will be susceptible to interence, quality loss, and poor quality over longer distances. Fourteen guage is a good thickness and suitable for most home theatres. Make sure its also not too thick – some speaker wire simply will not fit in to the speaker wire jacks on some receivers.
Some receivers use proprietary speaker inputs. Sony is one example. Many Sony receivers have special connectors for speaker wire and will not accept a standard speaker wire. You’ll need to use either the Sony-provided speaker wire, take the ends off of Sony speaker wire and put it on your own, or buy some of these special connectors from Sony directly to place on your speaker wire. My recommendation? Avoid any receivers with non-standard speaker wire posts/jacks/connectors. Look for bind posts or other jacks that allow you to slide in and clamp down on a typical speaker wire.
Once you’ve got your speaker wire sorted out, you’ll have to do some cutting and stripping if you opted to purchase your own. This is way easier than it sounds, so don’t worry!
Measure out each length one at a time, cutting the speaker wire with either really great scissors or a sharp blade. Now you need to strip the ends of the wire. Use either a stripping tool or plain old scissors. You can place the scissors on the cable and gently apply some pressure as you twist the scissors around the cable, carefully slicing into the plastic coating. Eventually, it’ll get weak enough that you can just slide it off by tugging on it with your fingers. You need at least 1/4″ of exposed wire.
Now you can connect your speakers. Note on your speaker wire the difference between the two ends. You’ll need to use one as your positive and one as your negative. Sometimes the coating is a different color between the two or there is text on one and not on the other. Keep track of this – whichever side you use for positive on your speaker, use it for positive on your receiver. Crossing the two can cause damage, either immediately or sometime in the future. It might work this way but you don’t want it to!
Connecting the speakers is easy enough. Front left to front left on your receiver, center speaker to center on your receiver, etc… Your rear speakers may be referred to as “Surround” or “Rear Surround” instead of just “Rear”, but keep in mind, if you have a 7.1 or 8.1 channel receiver, “Surround” may indicate side surround speakers, not rear speakers.
Subwoofers
Your subwoofer is going to be a little more complicated. There are a few different ways to do it and many variations of inputs/ouputs on the back side of subwoofers. I’m going to go with the most standard and efficient method first.
You will need a subwoofer cable for connecting your sub. If you don’t have one or don’t want to buy one, you can substitute it for a standard red or white RCA cable (or a pair, since they are usually connected; just let the other cable dangle). It will work, but its really not the best way to do it. You’ll also need whats called a Y adapter. On the back of your sub, there should be a left/right input (red and white). You plug the Y adapter in to these connections and then your subwoofer cable (or RCA cable) in the other end of the Y (note: if you don’t have a Y adapter, just choose the left or right input to plug into).
Now, take the other end of your cable and plug it into your receiver’s
subwoofer preout. Hopefully you have a powered sub, meaning it gets plugged into an AC power outlet. All you need to do now is plug that in and your subwoofer is good to.
If you don’t have RCA jacks on your subwoofer, or it only has speaker wire jacks (and its most likely not powered), you’ll need to connect it the old fashioned way. Your front left and right speakers will plug into your subwoofer’s ouput jacks instead of your receiver. You’ll then run speaker wire from the left and right inputs on the subwoofer to your left and right speaker outputs on your receiver. This way, the subwoofer is powered by the receiver and will not work as well as a powered sub. You also take some power away from your front speakers with this method. A good idea is to buy a new, powered subwoofer with line in RCA jacks.
Connecting the Dots
You’ve got the hard stuff out of the way. Now finish it up by connecting your TV, DVD, and cable/satellite box. Always try using the best options first. If your DVD
has HDMI and so does your receiver, use it. If your DVD only has composite, s-video, and component, use component video cable. When it comes to audio, you absolutely need
to use digital coaxial (jacks are usually orange) or fiber optic (usually the jack is recessed into the unit and has a door on it; when the door is open, a red light is visible). If you do not use either of these two, you won’t get true surround sound! When all else fails, resort to composite (red and white) audio connectors.
Note: Look closely at the connections on your receiver. Everything is labeled, like the first set of red, green, and blue component video inputs might be labeled “Comp 1″. If you’re using composite audio cablesfor your sound, you’ll need to plug them into the jacks that coordinate with “Comp 1″. This might not be clear by looking at the receiver, so refer to your receiver’s manual to figure out which video inputs use which audio inputs. Most often, you’ll be able to configure them from the receiver’s internal menu using the remote control.
On some receivers, all the component video inputs, for example, are linked to a single composite audio input (usually “DVD”), so if you connect more than one of the component inputs, you will be competing for sound when more than one device is active. This is why you’d want to configure the component inputs to use different audio inputs.
Your manual is the only way to figure out how to go about it. Composite video will usually match up to composite audio inputs with naming conventions like Video 1 -> Video 1, Video 2 -> Video 2, etc., but cables like component and DVI may not. You should also configure digital audio inputs to match up with the video inputs you’re planning on using. For example, if you’re using a digital coaxial input (possibly “Digital 1″), and you use component video, you’ll want to match “Digital 1″ with “Comp 1″. Again, refer to your users manual for how to do this.
720p Vs 1080i HDTV
Is 720p vs 1080i worth being concerned about? Yes and no. If you’re a consumer looking for a new TV, you can happily ignore the 720p vs 1080i debate because every TV which is described as HDTV or HDTV Ready is required to support both formats.
NOTE: You should be aware though that lots of TVs which support 1080i have fewer than 1080 lines and so scale the 1080 signal down. That’s not a huge issue as even scaled down 1080i is far ahead of a regular NTSC signal. It is worth bearing in mind that more expensive HDTVs tend to have better scalers than cheaper ones, and this may be an issue.
However, for broadcasters it’s a live issue. Should they broadcast 1080 lines of interlaced video or 720 lines of progressive scan? They could just broadcast two signals, one in each format, but that would use up a huge chunk of bandwidth and be hugely expensive for very little gain.
To answer the question, it’s important to understand the difference between 720p vs 1080i. A 720p signal is made up of 720 horizontal lines. Each frame is displayed in its entirety on-screen for 1/30th of a second. This is know as progressive scan (hence the ‘p’)The quality is like watching 30 photographic images a second on TV. A 1080i signal comprises 1080 horizontal lines but all the lines are not displayed on-screen simultaneously. Instead, they are interlaced (hence the ‘i’), ie every other lines is displayed for 1/60th of a second and then the alternate lines are displayed for 1/60th of a second. So, the frame rate is still 30 frames per second, but each frame is split into two fields, which your brain then puts together subconsciously.
Most of the time interlacing works fine, but for fast moving images, such as sports like baseball and hockey it can cause problems which manifest themselves as a ‘stepping’ effect on-screen. Progressive scan signals don’t have this problem and so are better suited to sports.
ESPN puts it like this: ‘Progressive scan technology produces better images for the fast moving orientation of sports television. Simply put, with 104 mph fastballs in baseball and 120 mph shots on goal in hockey, the line-by-line basis of progressive scan technology better captures the inherent fast action of sports. For ESPN, progressive scan technology makes perfect sense.’
Bottom line? For us, as consumers 720p vs 1080i is not a debate worth worrying about, so you can relax and focus on all the other criteria on your list when you buy your next HDTV.
The History of 3D Technology
3D technology can be traced all the way back to the beginning of photography. In 1844 David Brewster invented the Stereoscope. It was a new invention that could take photographic images in 3D. Later, Louis Jules Duboscq took that invention and improved on it. Louis took a picture of Queen Victoria using the improved technology and displayed it at the Great Exhibition in 1851. This picture became very well known throughout the world. Steroscopic cameras started to catch on and became fairly common for personal use by World War II.
In 1855 the Kinematascope, a stereo animation camera, was invented. It was able to create 3d motion pictures. In 1915 the first anaglyph movie was produced. Anaglyph technology used 3d glasses with 2 different color lenses that would direct an image to each eye. In 1890 William Friese-Greene, a British film pioneer, filed a patent for the 3D movie process. In 1922 the first public 3D movie, “The Power of Love”, was displayed. In 1935 the first 3D Color movie was produced. The use of the technology would remain dormant for over a decade.
In the 1950s, 3D technology made a come back. During this era, TVs had become extremely popular and had started appearing in many households. In the 50s a number of 3D movies were being produced. In 1952 “Bwana Devil” by United Artists was shown across the United States. This was the first 3D movie of the 50s. The film was shot using a process called Natural Vision. This process was pitched to Hollywood studios but they all passed. A year later, in 1953, “House of Wax” was released in 3D. “Dial M for Murder” was originally planned to be released in 3D, but Alfred Hitchcock decided to release the movie in 2D to maximize profits. Not all movie theaters were equipped with the 3D technology. 3D films were also being developed outside of the United States. In 1947 The Soviet Union released their first full length 3D movie, “Robinson Crusoe”.
In the 1960s a new technology called Space-Vision 3D was released. This technology took two images and printed them over each other on a single strip. Unlike previous 3D technologies, it required a single projector with a special lens. This new technology removed the need to use two cameras to display 3D movies. Two camera systems were difficult to use, because it required that the two cameras were perfectly synced. The first movie to use this technology was “The Bubble”. The movie was panned by critics, but the 3D experience still brought huge audiences. It became a profitable movie, making the new technology ready for promotion to other studios.
In 1970, Allan Silliphant and Chris Condon developed Stereovision. This was a new 3D technology that put two images squeezed together side by side on a single strip of 35 mm film. This technology used a special anamorphic lens that would widen the picture using a series of polaroid filters. The first movie to be released in Stereovision was a softcore sex comedy called “The Stewardesses”. The movie cost only $100,000 USD to make and it earned an amazing $27 million in North America.
In the early 1980s many movies were released in 3D using the same process as Space Vision. Some of the movies that were released were Amityville 3-D, Friday the 13th Part III, and Jaws 3-D. In the mid 1980s, IMAX began producing documentary films in 3D. IMAx’s 3D technology emphasized mathmatical correctness and this eliminated the eye fatigue that was seen in previous 3D technologies. In 1986, Canada had developed the first 3D movie that used polarized glasses. It was called “Echos of the Sun” and was created for Expo 86.
During the 1990s, many films were released in IMAX 3D. The most succesful IMAX 3D film released during this time was “Into the Deep”. The first IMAX 3D fiction film, “Wings of Courage” was released in 1996.
During the 2000s, many big studio movies were released in 3D. In 2003, James Cameron released Ghosts of the Abyss. This was the first full length 3D IMAX feature film. This movie used the latest IMAX 3D technology called Reality Camera System. The technology used the latest HD video cameras and was developed by Vince Pace. This same technology was used in “Spy Kids 3D: Game over”, “Aliens of the Deep”, and “The Adventures of Sharkboy and Lavagirl in 3-D”. In 2004 the first full length animated 3D movie was released. It was called “The Polar Express”. This movie was so succesful in 3D that it prompted a great interest in 3D animated films. The 3D version of the film earned 14x as much per screen as the 2D version. In 2005, The Mann’s Chinese 6 theater in Hollywood became the first commercial movie theater to have the Digital 3D technology. In 2007 Scar 3D was released internationally and it was the first film to be filmed using a completely digital workflow.
In 2010 Sky UK made a big push towards 3D television. On January 1st, the first 3D channel began broadcasting in South Korea. The channel displays educational shows, animated shows, sporting events, documentaries and musical performances all in 3D, 24 hours a day, 7 days a week.
We should expect that the use of 3D technology will continue and expand in to the normal household. Most major electronics manufacturers are planning the release of their 3D television lines. As the technology ages, expect prices to go lower and lower, and as they prices drop, more and more people will purchase 3D television sets.
Non Health Benefits of Watching Movies
You can enjoy benefits of watching movies, if you appreciate movies and in the present time watching movies certainly has become very much convenient for anyone. You can watch them in cinema halls, televisions or even internet, from the convenience of your home. In most cases you just don’t have to spend a dime to watch your favorite movies online as thousands of websites offer you with streaming movie facilities where you never need to rent them in order to watch them. You can always watch your favorite movies a few days after it has been released for public viewing. With the advent on internet, you certainly can watch movies of any genre and category.
There are a number of non-health benefits if you want to watch these movies online. One of the main benefits is that online it is possible to locate any movie that is yours favorite. There are a number of websites that allows you to perform your search on the basis of categories. You can try searching for movies on the basis of language, countries or even category. You can also try and perform your search on the basis of titles of the movies or even name of the actors. There are also a number of television stations that offer you with foreign language movies and these websites also offer you with links to your favorite movies for free. You always have the convenience of watching movies in the stream pattern without any interruption.
You certainly can enjoy better picture quality when watching these movies on your projector television or HD television. There are a number of people who like watching classic movies and this is one of the best ways to watch them at their own convenience. Most people prefer watching movies on platforms where they can get 24×7 access to their favorite moves and internet certainly is one such platform. You can enjoy watching movies from different categories like action, romance, comedy or even thriller.
How Do I Connect Multiple Monitors to My Laptop?
The option to connect the multiple monitors to the laptop is quite popular and interesting feature that is found in many laptops these days. Many systems and operating systems like Macintosh, Linux as well as windows support this feature. It is quite easy to connect the multiple monitors to your laptop and mainly this can be done in a two ways. Mirror mode and Multi Monitor mode.
In the mirror mode you laptop screen will be replicated as such on another monitor. This feature is exactly very useful for the projectors. Almost all of the laptops have a monitor port through which you can plug in another monitor or the projector and this will help in transmitting the image to the projector screen for the larger audience. Along with the screen image the movements of mouse will also be transmitted. Most of the video cards have this facility of monitor port and can be connected to the projector. But there is a catch here: the image of the screen that will be transmitted to the projector is altogether dependent on the quality of the projector screen. If your laptop has got superior qualities like resolution, refresh rate or color depth then the quality of the image that will be shown on the projector screen will be inferior and in accordance with the projector quality.
In other method of Multi Monitor mode you can connect more than one monitors and get one big monitor screen. If you are using four monitors then in this mode they will be joined in such a way that each screen will show 1/4th of the original screen. This helps when you are to play video games or to simulate large enough real time working models. In most of the systems default setting is mirroring mode and not the multi mode. For connecting this you can make use of the secondary monitor VGA output available in your monitor. Also nowadays monitors come that can be connected through the USB ports. For utilizing this option check for the availability of multi mode option in your video card. Other methods include the addition of PCMCIA video card that can be inserted easily in to the PCMCIA slot of the laptop and the usage of a Docking Station with a Video card having multi mode facility.