Hot Other Devices Posts

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...

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: 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: Wire a radar detector directly into your dashboard

Radar Roy demonstrates in this video tutorial how to hard wire a dash-mounted radar detector. The advantage of direct wiring your radar detector is getting rid of that wire mess going to your cigarette lighter. So, if you don't want another speeding ticket again, install your radar detector the right way, the direct way! All it takes is a little electrical know-how, and maybe a little automobile know-how.

How To: Build a MAME bar-top arcade cabinet for under $100

Part of the process is to create plans to follow when making the cabinet for the arcade game. when cutting the wood you need to allow for the 1/8th of an inch that the band saw will be cutting. You will also need a piece of plexi glass to give the game an authentic feel, spray paint the piece of plexi. You will also need joysticks and buttons, which you can get at happcontrol.com. You need to cut a square hole in the plexi so that the buttons can be mounted in it. To integrate the buttons you...

How To: Build a 3D scanner from a $25 laser level

Systm is the Do It Yourself show designed for the common geek who wants to quickly and easily learn how to dive into the latest and hottest tech projects. We will help you avoid pitfalls and get your project up and running fast. Search Systm on WonderHowTo for more DIY episodes from this Revision3 show.

How To: UsUSB Plug 'n Play Instant Setup with Epson projectors

Epson printer setup is easy, let’s start by connecting the standard USB cable into the USB port in the back of your computer, the other end of the USB cable will go into the USB slot in the back of the projector. Simple as that your slides will start immediately! With the Epson plug n play projector you can use the page up page down keys in order to manage your slides which you cannot do with those other out dated connections.

How To: Use a CRT oscilloscope

Wondering how to use an old-timey oscilloscope? Learn how with this video tutorial, which offers step-by-step instructions on setting up and adjusting an old cathode ray tube oscilloscope for the measurment of signals. For more information, or to get started using your own oscilloscope, take a look.

How To: Make a musical electric toothbrush

This tutorial video will show you how to modify an electric toothbrush so that it will play the radio through your skull while you brush your teeth. This handy device is similar to the store bought models but you could hook it up to any audio source (For example: ipod, mp3 player, radio).

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: Set up your AppleTV with a standard definition TV

You don't need a high definition television to take advantage of AppleTV! This tutorial shows you how to set up your Apple TV to function with a standard definition television set. You'll need an HDMI to DVI cable anda VGA to DVI adapter, and use the yellow composite video cords. Then adjust your settings, and you're ready to start watching your new Apple TV!

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 an electromagnet with household items

Playing with magnets can be fun for people of all ages. Making your own magnets can also be a great way to keep yourself and young ones entertained as well. This tutorial will take you through the motion of making an electromagnet using items that are regaularly found within your home. Enjoy!

How To: Easily make an electromagnet

Ready to play scientist? This video will show you how to make a cool electro magnet out of a 9 V battery, a 9 V battery connector and parts from a Nokia phone charger. Use a fully charged battery for stronger magnet. Then solder the two parts together and plug in your battery. And just like that you’ve created a powerful yet simple magnet. Try picking up different things and use different batteries to test the difference in strengths . See science can be a whole lot of fun. Put on some funky ...

How To: Build a sumo robot

Systm is the Do It Yourself show designed for the common geek who wants to quickly and easily learn how to dive into the latest and hottest tech projects. We will help you avoid pitfalls and get your project up and running fast. Search Systm on WonderHowTo for more DIY episodes from this Revision3 show.

How To: Clear a paper jam on a Kodak G600 Printer Dock

This interactive Kodak printer tutorial takes you through every step necessary to fully clear a paper jam on a Kodak EasyShare G600 Printer Dock. If you have a Kodak EasyShare digital camera, you probably have one of these G600 printers, and you've probably had a problem with it, like a stuck printer cartridge, or a paper jam, so fix it yourself, let Kodak teach you how. Clear a paper jam on a Kodak G600 Printer Dock.

How To: Read a binary clock with the BCD format

Check out how to read a binary clock in this how to video. You'll see how to read the BCD (binary-coded decimal) format like so many can't. Just watch this if you have trouble determining the hours, minutes, or seconds on your binary clock. You can read it in standard or military time if you'd like.

News: New Biometric Device Steals Fingerprints from 6 Feet Away

Dactyloscopy isn’t going anywhere. Forensic science has much relied on fingerprinting as a means of identification, largely because of the massive amount of fingerprints stored in the FBI’s biometric database (IAFIS), which houses over 150,000 million prints. And thanks to the departure of messy ink-stained fingertips, biometric analysis isn’t just for solving crimes anymore.

News: Print Yourself in 3D

Since the early genesis of the brilliant Microsoft Kinect hack, inventive applications have been popping up nonstop. One of the most fascinating projects to surface recently falls within the realm of 3D printing. "Fabricate Yourself"—a hack presented at the Tangible, Embedded and Embodied Interaction Conference in January—allows users to pose in front of an Xbox Kinect, which then converts a captured image into a 3D printable file. What does this mean exactly? Think Han Solo trapped in carbon...

Size Matters: World's Largest Touchscreen Hacked Together with Ordinary Hardware

It's gigantic! It can handle over 100 simultaneous touch points! It has a curvature of 135 degrees! And best of all, it is not the newest, insanely expensive gadget to hit the market. Instead, this touchscreen was hacked together with a bunch of PCs, video cameras, projectors and cheap infrared illuminators at the University of Groningen, in the Netherlands. It works like this: "The cameras, illuminators and projectors are all placed behind a large, cylindrical screen (formally used as a 3D t...