Hot Other Devices How-Tos

How To: Build a small DIY hydrogen fuel cell science experiment

The hydrogen fuel cell has great potential to replace carbon-based fuels in our vehicle fleets and stave off global warming. It's a difficult concept intellectually, so why not make this fun little science experiment to try it out for yourself? Yes, by following these simple instructions you can make a small hydrogen fuel cell at home that will even power some devices!

How To: Remove a stuck cartridge on a Kodak G610 Printer Dock

This interactive Kodak printer tutorial takes you through every step necessary to fully remove a stuck cartridge on a Kodak EasyShare G610 Printer Dock. If you have a Kodak EasyShare digital camera, you probably have one of these G610 printers, and you've probably had a problem with it, like a stuck printer cartridge, so fix it yourself, let Kodak teach you how. Remove a stuck cartridge on a Kodak G610 Printer Dock.

How To: Use the Pinnacle Video Transfer device

In this video, the author explains how you can use software called "Pinnacle Video Transfer" to convert your audio and video files to other audio, and video forms. This is so that you can carry them on whatever devices you want, and play them whenever you want. This video takes you through all those steps to convert your favorite audio and video files to different file formats. You would get a clear idea as to how you can easily capture videos by watching this great tutorial.

How To: Calculate compound interest using a TI-84 and solver

This is a video tutorial in the Electronics category where you are going to learn how to calculate compound interest using a TI-84 and solver. Press the apps button on the calculator and press enter to load the TVM Solver which is the 1st choice. Here the meaning of various notations are N is time, I% is the percentage, PV is present value, PMT is payment, FV is future value and C/Y is compounding period. The problem is find the compound amount and the interest earned on $12,903.45 compounded...

How To: Make a simple toy motor

It’s just a few steps to make a toy motor. Take a battery of any brand, then take two safety pins. Attach them to both the sides of battery as they act as positive and negative. Then take a magnet, keep it on the battery. Now take a strip, which is rolled into a circle, and take two leading wires from it. Then keep this strip in between the safety pins and just start it up by rotating to one side. Then leave it aside, it rotates continuously.

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: 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: Make a burning laser pointer that produces heat

In this video tutorial, viewers learn how to make a burning laser pointer. Users will just need a regular 5Mw green laser pointer. Begin by unscrewing the top of the laser pointer and take out the batteries. Carefully with a pair of pliers, break the glue seal and remove the laser. Using a micro screwdriver, make sure that the screw on the laser is tight. Now using a soldering iron heat the 03 component shown in the video for a few seconds. Then assemble the laser back together. This video wi...

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: 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: Print 2-sided (duplex) w/ an Epson all-in-one printer

The Epson video describes how to print two-sided on one piece of paper. When document is ready, go to "File" and then "Print". Click the "Properties" button and select Page Layout tab and turn on the two-sided printing option. Click "OK" in print window. Wait for Epson printer to complete the first page. Take paper, flip over and put it back upside down in the paper feeder. There are instructions that will pop out on screen for this. Click resume and the second page will be printed on the bac...

How To: Set up an X10 spy camera

The spy camera shown in this how-to video has a 60 foot cable, and is full color and has audio. This spy cam can be used as a security device, or to feed paranoid delusions or stalking urges. Watch this video tutorial and learn how to set up an X10 spy camera.

How To: Skip commercials with your Comcast DVR remote control

In this tutorial, we learn how to skip commercials with your Comcast DVR remote control. First, press the cable button, then press and hold the set up button until the cable button blinks twice. Now, enter in "994" on your remote. After this, the cable button will blink twice again. Now, press the setup button again and type in "00173", then press a button you don't use a lot. Now, the cable button will blink again. Now, turn on a show you have recorded and it will just through the commercial...

How To: Make a night vision device

Ever wish you could see in the dark? Well, you can't but this how-to will show you a way to build a device to help you out. You will need light polarizors, a flashlight, and a digital camera. Make an infrared night vision device, just follow along with the steps in this video tutorial. Now you can see at night!

How To: Use a Scosche flipSYNC key fob USB cable

Need some help figuring out how to use a Schosche flipSYNC key fob USB cable? This brief video tutorial from the folks at Butterscotch will teach you everything you need to know. For more information, including detailed, step-by-step instructions, and to get started using your own flipSYNC, take a look.

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: Build a universal motion alarm to protect your home

This video shows us the method to make a universal motion alarm to protect your home. You will need a reed switch with an alternating contact, a 9V battery with a battery clip, a switch, a buzzer, a small plastic box and a magnet. When a magnet is brought near the reed switch, it switches to the other contact and the switch is open. If the magnet is removed, the switch is closed and the buzzer starts ringing. Make the circuit with correct polarity for battery and the buzzer. Make a hole in th...

How To: Make a laser out of a lighter

Kipkay has a new cool project for you. In this video, you'll learn how to make a laser out of a lighter. All you need to do is a cheap butane lighter. Any one will do, including one bought from a convenience store. Just watch this how-to video, and you'll be playing with your laser pointer in no time at all!

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: Build an electric motor

Want to make a simple electric motor at home? Andy and Mike show you how in just a few easy steps, using a block of wood, two paperclips, a AA battery, some insulated copper wire, and a magnet. This is a fun and simple science experiment that anyone can do at home. Wrap the wire seven times into a circular coil, with the enamel stripped off at both ends. Place the battery between the two paperclips, which serve as conductors and also hold the coil in place. Place the magnet below and between ...

How To: Make a homopolar motor

This video shows you how to make a homopolar motor. First of all things you need to make motor are AA battery, couple of magnets and copper wire. Now take magnet and attach it to the negative end of battery, now take a copper wire and bend it to the shape shown in the video and place it over the positive end of the battery, now you will see that wire starts rotating. Now to make a stand take a small plastic lid and two pieces of rubber magnet then place magnets to both the sides of the lid an...

How To: Make your laser pointer run on AAA batteries

This video shows us the method to make your laser pointer work with AAA batteries. Take a metal casing made of metal. In the video, we take a Duracell mini flashlight and remove the front and back part. Unscrew the top and back of the laser pointer and remove the batteries. Roll some aluminium foil and put it in the metal casing. Put the AAA batteries in the casing with positive side inside. Put the casing and the laser pointer together and the laser works. Bind the two together by two rubber...

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