In this article, I'll show you how to make a simple touch-triggered switch. This is very useful for various electronic projects, from a simple bedside light to a flat panel touch keyboard. The circuit can vary in switching power depending on the transistors you use. For example, if you're looking into creating a 120V light that turns on when touched, you'd need two powerful transistors and an isolation relay. However, a simple flashlight that turns on when touched would only take a couple of ...
In this article, I'll show you how to create a simple yet accurate demonstration of the "rising ionized gas" principle. In other words, a transformer, two metal prongs and lots of evil laughter. Remember those large "towers" in the background of Frankenstein movies with a "lightning bolt" rising upwards every few seconds? That's called a Jacob's Ladder; one of the coolest awe-inspiring demonstrations of high voltage. Here's a video of the final product: Materials and Tools
Giveaway Tuesdays has officially ended! But don't sweat it, WonderHowTo has another World that's taken its place. Every Tuesday, Phone Snap! invites you to show off your cell phone photography skills.
From Lifehacker's Tips Box, four short-cuts to life's small problems, urawaza-style: No Iron?
Say hello to "Meet Eater," the world's most social garden. Seriously — say hello! Its life may depend on it:
This prank will involve as many people as you can fit into one car, and you will need to have the majority of your buddies dressed in military outfits. The one exception is that you will need to have one person dress up as the military sergeant, which will be leading most of the prank. You need to rig the car that you are using to smart smoking from the hood, or if you want to make it more realistic you could actually have the wheels fall completely off the vehicle itself once it has entered ...
When bams parents are out get a crew to go in the house and rig it all up all over the house to make it seem like its haunted. later when bams parents get back, they get back to everyone pretending to do the ouiji board or something and get april to get all worked up about spirits and everthing. then when they go to bed after everone else leaves slowly activate one at a time the hauntings, like the door opening then voices or the tv turning on to the white static and have wee-man in some kind...
Watch as world freediving champion Guillaume Nery takes an incredible dive into Dean's Blue Hole in the Bahamas (on ONE SINGLE BREATH!)
Apparently the Canon 7D can (with a little help from GigaPan, of course). Via WonderHowTo World, Canon EOS 7D:
A British prisoner was recently caught with a tattoo gun rigged from a Sony Playstation. The crafty D.I.Y.er broke down the Playstation and attached the console motor to a finely sharpened ballpoint pen.
Iowa firefighter Pete Lilja has modded the software of a Canon powershot to record images of Earth, from as high as 85,000 feet!
Be honest about your pet's ability to travel. If your pet is very young or old, or is ill, pregnant, or recovering from surgery, it may be better for all concerned to look into a pet sitter or kennel rather than take a chance on injuring your pet by taking it with you. If you are in doubt, ask your veterinarian. If your pet has not traveled before, try a short overnight or weekend trip first.
William F. White International Inc. is more than just a place that rents out lights and cranes and generators and dollies and green screens and camera cars. They've also got heaps of training and certification programs that can help you become a more knowledgeable set denizen. And every fall they throw their doors open to young filmmakers and students so they can get their hands on some pro-level gear and talk to some experts with field experience, and maybe win a rental voucher. Gear Guide w...
If you're a frequenter of Null Byte, I bet you have at least some interest in information security. Furthermore, you have a hobby that if applied in certain ways, will get you arrested. I've received quite a few messages from the community here about federal cybercrime law and how it applies to them, so I decided to get together with my lawyer to come up with some answers.
Have you ever browsed the web, watched a video, then wanted to download it? Well, there's a fabulous program that does just that, simply and easily. It's called VideoCacheView by NirSoft. The program basically extracts the FLV video directly from your browser's temporary folders. It's very user-friendly, and great for downloading virtually any online video.
Before you start snapping away and submitting your photos, please take some time to read the official rules below!
Sometimes mining and crafting gets boring. The thrill of hunting mobs, exploring strongholds, or the Nether is often much more satisfying and appeals to the RPG nerd in all of us. Well, Mojang took the hint and as part of the 1.9 release, there will be potions, more mobs, other worlds, and enchantments added to the game. To preview this release, read my tutorial on how to download and install 1.9.3.
Giveaway Tuesdays has officially ended! But don't sweat it, WonderHowTo has another World that's taken its place. Every Tuesday, Phone Snap! invites you to show off your cell phone photography skills.
If you're a musician in need of some lessons, there's no better way to learn than with Music Radar's so-called "Tuition" instructions. Although the title tuition is misleading, this video class is anything but costly, because it's free, right here. Whether you're looking for help with your voice, bass, electric guitar, drums, guitar effects, piano, Logic Pro or production techniques, Music Radar is here to show you the way.
If you're a musician in need of some lessons, there's no better way to learn than with Music Radar's so-called "Tuition" instructions. Although the title tuition is misleading, this video class is anything but costly, because it's free, right here. Whether you're looking for help with your voice, bass, electric guitar, drums, guitar effects, piano, Logic Pro or production techniques, Music Radar is here to show you the way.
The Interactive Lab Primer (ILP) has been developed as part of the Royal Society of Chemistry Teacher Fellowship Scheme, one of the themes of the Chemistry for Our Future program, and initiative which aims to secure a strong and sustainable future for the chemical sciences in higher education. The aim of the ILP is to address the diverse range of experience and skills students bring with them to a university by offering a resource to support their transition from school to the university chem...
What's a jig worm? Well, it's exactly what the name implies: a jig rigged with a trailing plastic worm. If you're not a seasoned fisherman, the answer might not have been so obvious, but that doesn't matter when you find out how important this jig worm is. Wade Bourne of MyOutdoorTV shows you how to fish a jig worm.
Papaya trees are very vulnerable to transplantation shock. Seedlings tend to recover slowly and poorly after replanting in a new location under a sunny sky. Many internet articles advise that papaya trees should be transplanted without injury to their root systems. Keeping the root systems intact is next to impossible if the papaya seedlings are too close to each other. However, you would be surprised to learn how a papaya tree with serverely broken root systems can survive a transplantation ...
In each day of our life, we see inflammation. We see it during sore throats and abscess formations in our bodies, and even slight tooth pain is a form of inflammation. Sometimes it's good when it fights to protect us from invading organisms, but sometimes it becomes bad when it occurs in inappropriate ways, like acne.
Do not ever laugh or shrug off what medical bottles or boxes give you as side effects or warnings. All of the side effects and warnings are put on the medication for a purpose. Priapism is a topic we all laugh or giggle about but it is a very serious emergency problem.
By trial and error, I have found a good way to remove the door panel from a 2002 Ford Explorer (and other similar years).
This Butterfly knot will accommodate a load in any direction, and is used mostly in outdoor and boating situations, but also could be used as a paddling knot. It's used for securing a loop or many loops in the middle of a rope. Great for mountain climbing and canoeing.
What is a burn? It's a form of injury to body tissues which is caused by heat, corrosive substances or friction. There is another form of burn, which is known as scald; it results from exposure to hot water or steam.
This is the third part of my electromagnetic pulse series (see Part One and Part Two). By now, I've covered the hardware and general concept of electromagnetic pulse generators, but how exactly do they disable electronics? How can an invisible field of energy have such a catastrophic effect on computers, cell phones, and most any other electronics? I'll be answering all these questions in part three of Making Electromagnetic Weapons.
No time for elaborate practical jokes this April Fool's? Not a problem, it's 2011—meaning, apps can do just about anything these days. Measure beauty, check for STDs, even fix late night drunken social media stupidity. So why not pranks? Below, 10 digital solutions for your April Fool's Day wickedness.
Installing a chandelier can bring a whole new style to your home’s design. Even though it might seem like a job only a professional can do, it really is quite simple. This DIY video illustrates just how easy it can be to install the chandelier yourself.
How to Hold Forceps This video shows the basic skill of holding forceps or any scissor-like instrument. The most important things to notice here are:
In order to propagate plants from cuttings, you will need the following: plants that can grow from clippings, a container, potting soil, water, and a rooting hormone.
If you live in a colder climate, your water pipes may be susceptible to freezing. For the most part, your plumbing is safely inside the heated living space of your house. However, a sillcock (spigot) on the outside wall of your house is exposed to the elements and can freeze during the colder winter months. Since water expands as it freezes, this situation can burst your pipes causing water damage to your house.
How do I dub from my VCR to the recorder? Check out this video tutorial on how to dub from a VCR to a Panasonic DMR-ES15 (ES25) DVD Recorder. This Panasonic DMR-ES15 (ES25) DVD Recorder is easy to operate and great to record with.
How do I dub from my VCR to the recorder? Check out this video tutorial on how to dub from a VCR to a Panasonic DMR-EH55 DVD Recorder. This Panasonic DMR-EH55 DVD Recorder is easy to operate and great to record with.
Dry and damaged hair can get a boost from a nourishing hair mask. If you want to make a hair mask out of natural ingredients. Make the mask when the hair is wet. Mix half a cup of honey with a quarter cup of olive oil. Apply the mixture to your hair with a wide brush. Try to apply it as evenly as possible over all your hair. When you finish applying, gently comb your hair and gather it up. To make sure the mask is well absorbed, leave it on for about half an hour. Afterwards, shampoo the hair...
Watch this video from This Old House to learn how to repair clapboard. Steps:
Watch this video from This Old House to learn how to fix a wobbly toilet. Steps:
