How To: Use the Nikon SB-900

Now that you've got your Nikon SB-900 professional-grade speedlight, make sure that you get the most out of it with this free photographer's guide, which will walk you through the flash unit's basic features and functionalities.

How To: Hack someone's web cam or online security camera

This tutorial will let you hack into a wide selection of web cams and online security cameras. The hack is actually quite easy, and is best done with a browser like Mozilla Firefox. Navigate to Google in your browser, and then type in "inurl:viewerframe?mode+refresh". This piece of code will open up a list of active webcams. Then just surf through your choices and watch whatever you want. You can even change the camera angle and zoom in and out of the picture!

How To: Strip your Casio fx-82MS calculator

Take a look at this instructional video and learn how to take apart a Casio fx-82MS calculator. First, you'll need to get a screwdriver the take off the calculator's backplate. Make sure not to misplace those screws afterwards. You should be able to see the motherchip after taking off the plate, this is the next item you'll want to remove. These screws are extremely small so it might be best to use a knife to unscrew them. Lift the motherchip and take out the rubber key pad off. To put it bac...

How To: Get your iPod into disk mode and stay in disk mode

In this video tutorial, viewers learn how to make iPods go in disk mode and to stay in disk mode. This is a new technique on how to get and stay in disk mode so viewers can restore their iPod to factory settings and get it working again. Viewers will need an iPod charger adapter. To go into disk mode, viewers need to hold the center and Menu button the same time. Once the apple icon appears, viewers immediately need to hold the center and play button. This video will benefit those viewers who...

How To: Turn off your iPod Nano or iPod Classic

You can turn off both the iPod Nano and the iPod Classic the same way. To turn it off you have to push a button on the click wheel of the iPod. You will push and hold the play pause button until the iPod goes off. The play pause button is the one that has the two lines and the triangle side by side. Once you have held them down and the iPod has gone off then there is one more thing you need to do. On top of the iPod there is a lock button just move that button to the lock position and you are...

How To: Repair a blown subwoofer

OK, you've done it, you've blasted your DJ set just a little too loud and now your speakers are dust. Well, before you rush out and replace them, why not try repairing them on your own? That's right, with this how to video you can take the necessary steps and breath new life back into that fried speaker. You'll need a soldering iron, the appropriate gauge wire, and some time. This project isn't quick and it's not necessarily easy either, but you'll feel good when you've saved your speakers. B...

How To: Graph Mario on a TI-83 Calculator

When it comes to graphing and comparing functions, the TI-83 graphing calculator is the end-all device for math and science students. But one of the most entertaining aspects of Texas Instruments' powerful algebraic and trigonometric calculator is not the equations themselves, but rather the art that can be "equated" on them—just think of them as the mathematical equivalent of the Etch A Sketch.

How To: Connect a laptop or PC to your TV with an RGB cable

In this Electronics video tutorial you will learn how to connect a laptop or PC to your TV with an RGB cable. Take your RGB cable and plug it in to the back of the TV as shown in the video. You can also do this with the HDMI cable. Now take other end of the RGB cable and plug it in to the laptop or PC. Then you right click on your desktop, go down to graphics options > output to > monitor. Now you have to change the input to your TV. This will depend on the make and model of your TV. Once tha...

How To: Use Quick Connect Wireless with Epson projectors

In this tutorial, we learn how to use Quick Connect Wireless with Epson Projectors. First, make sure you have one cable connected to the projector and one cable connected to the computer with a USB streamline. This makes it much easier and more efficient to plug in your projector. As soon as you plug this in, you will see a message appear on your notebook, then the screen will star to appear on the projector as it does on the notebook. It will take a few seconds, depending on the monitor and ...

How To: Use a multimeter to test common household appliances

If you're doing any sort of electrical work at home, a multimeter is an invaluable tool to have. But as invaluable as it is to have a volt/ohm meter, it is obviously even more invaluable still to know how to use one. And, with this electrician's how-to, you'll learn how to do just that. For more information, and to get started using and reading multimeters yourself, watch this free video guide.

How To: Set up the D80 pop-up flash as commander for Nikon CLS

These are the steps required to set your D80's pop-up flash. First, go to the "Custom Shooting Menu." Then you choose #22 on the screen: "Built in Flash." Choose the "Commander Mode" option. The modes that are available for the pop-up flash include TTL, AA (Auto Aperture) M (Manual) and Off (no flash). If you are using an external flash unit, you use either group A or B. The light frequencies and proper settings are related to how much light compensation is needed. +3. 0 is high power, 1. 1 i...

How To: Connect your personal computer to your digital TV

Have you ever wanted to watch content from your PC on your digital TV? This step-by-step guide makes it simple to understand and do. The video tells you exactly what you need in order to make this happen. You will need either a VGA connector cable or an HDMI cable, (if your PC supports it) or possibly a MINI to RCA audio cable. The video shows you the rest of the way and how to configure your TV and PC.

How To: Begin circuit bending

Looking to get into the weird world of circuit bending? In this four part video tutorial geared towards beginners, learn in thirty minutes how to circuit bend. Tools you will need include a soddering iron with innerchangeable tips (thin pencil preferred), thin sodder, hook-up wire, a wire cutter, a wire stripper, a drill with drill bits, plyers (needle nose included), and screw drivers of various small sizes. Other useful tools include cresent wrenches for toggle switches, jewelers files, & a...

How To: Transform Multiple Screens into One Big Virtual Display

The Junkyard Jumbotron is an amazing project that allows a collection of random web browser enabled displays—laptops, smartphones or tablets—to share a single image split across the group, creating one large virtual display. Created by Rick Borovoy at MIT's Center for Future Civic Media, the app is completely free and open, meaning you can do it yourself in a matter of minutes. It works like this:

How To: Build a cardboard subwoofer for your stereo

In this tutorial, we learn how to build a subwoofer out of cardboard. You will need to buy SonoTube, which is giant cardboard tubing. It comes in a variety of different sizes, so you can find one that will be around the same size as your subwoofer. To make the casing, you will need to use a saw to cut the tube to the size you need. Make it a snug size, but make sure it's not too small or you will have to start all over again. Use caulk and glue to stop any leaking air from getting out of your...

How To: Clean the rear LCD on a DSLR

In this video tutorial, viewers learn how to clean the rear LCD on a camera. Begin by dry cleaning using Giottos Rocket Blower and nylon fine brush. Users will also need a isopropyl rubbing alcohol and microfiber cloth. Users may also need gloves to protect their hands from the alcohol. Begin by blowing off any dust and brush it with the brush. Now users will be wet cleaning using the isopropyl alcohol and microfiber cloth. Users are advised to clean weekly. This video will benefit those view...

How To: Connect the Xbox 360 to the iPod

This is an interesting video where the presenter demonstrates how to actually play your iPod on your television by utilizing connectivity with XBox360. The great thing about this video is you actually see how the cables connect between the devices. Once connected, a brief tutorial of how to configure the dashboard follows. It's amazing how, with the right cables, one can quickly have use of their iPod on the television. The video itself is less than 90 seconds long, so you get a great tip for...

News: Revolutionary "Light Field Camera" Lets You Focus After the Picture Is Taken

Focusing has always been a problem with photographers, and even with today's digital cameras it's not easy. The most obvious problem is trying to accurately focus on the subject before exposure. Next, you have to choose the correct aperture size in relation to the depth of field, and make sure you're using the correct exposure. Then there's lens aberrations, where a certain ray of light does not converge to a single focal point in the desired image, resulting in some light leaking away from t...

How To: Turn a used TV into an oscilloscope

Leeann of Hierchiss explains how to turn a TV into an oscilloscope. Turn the TV on and make sure it works. First, unplug the power. Take the back off the television. Cut the four picture wires that attach to the circuit board. Strip the ends of the wires. Tape the remaining wires off to prevent short circuiting. Clamp the red and yellow wires and attach to a 1/4 inch jack which feeds into a tape player. Repeat the same process for the green and blue wires. Plug in the TV to make sure the conn...

How To: Set up a mini hidden camera easily

This video shows you how to set up and hide mini wireless spy camera. Where you put it is up to you. Who you spy on is up to you. If you're wanting to keep an extra set of eyes on someone, watch and learn. Whether it's your bathroom or kitchen, put your eyes on the prize.

How To: Clean the camera contacts on a DSLR

When the camera has trouble auto focusing the first step to take is to clean the contacts on the lens. If it continues then the contacts on the camera may need cleaning. When you clean the contacts in the camera you have to be extremely careful because they are inside the shutter chamber and there are a lot of small parts that can be easily broken in there. Face the camera down at all times during the cleaning procedure. Take the battery out of the camera and remove the lens. Put the rear cap...

How To: Hack an LCD screen & overhead into a digital projector

Digital projectors can be prohibitively expensive, particularly for those who stand to benefit the most from their use—that is, young people who prefer watch television and movies on their home computers. No longer. This hacker's how-to demonstrates how to make a simple digital video projector out of an old LCD flatscreen monitor and a slide, or overhead, projector. For detailed, step-by-step instructions on fabricating your own LCD/overhead digital projector on the cheap, take a look!

How To: Transmit files wirelessly on the Canon EOS 7D

You can easily share and transport your photo and videos on the Canon EOS 7D by using the wireless file transmission option. See exactly how sharing and downloading your files to computers and other devices works in this video. When the digital SLR camera is combined with the WFT-E5A Wireless File Transmitter, transmitting is easy.

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