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Quick Tip: Make Your Halloween Treats Glow in the Dark with Tonic Water

If you're throwing a party for Halloween or making homemade goodies for trick-or-treaters, there's no shortage of spooky foods and drinks you can cook up. But if you want to take it a step further, you can make anything glow under a black light by adding a little tonic water. Camber Wilson over on Recipe Snobs was asked to come up with a recipe for glow-in-the-dark cupcakes. After playing around with the frosting a bit, she found that tonic water made white frosting glow, but the effect was d...

How To: Make Trippy EL Wire Headphones That Dance to the Beat of Your Music

At one time or another, we've all enjoyed the visualizations that came stock in Windows Media Player. I remember spending hours listening to my favorite album, putting the graphic equalizer on full screen, and getting lost in the flurry of colors that would dance across the screen. Well, now thanks to the imaginative mind of Instructables user yardleydobon, you can now recreate this rainbow-colored music visualizer right on top of your freaking head—with these trippy EL wire headphones, which...

How To: Light Up Your iPhone's Apple Logo in Old School Rainbow Colors

As far as logos go, few are as iconic and instantly recognizable as Apple's old-school rainbow emblem. No matter how sleek their products get, people are still nostalgic for the old, colorful logo, and this mod from Adafruit basically proves it. If you have some pretty decent soldering skills, you can make the Apple on the back of your iPhone light up like the old rainbow logo. In the video below, Becky Stern from Adafruit uses a kit with a replacement glass back, tweezers, screwdrivers, and ...

How To: Too Lazy for Jack-O'-Lanterns? Make Your Pumpkins Glow in the Dark This Halloween

Halloween is less than a couple weeks away, so it's about that time you start thinking of cool ways to decorate your house (if you haven't already), and pumpkins are an obvious choice. Pumpkins are one of the cornerstones of Halloween celebrations, dating all the way back to the early 19th century. Carved jack-o'-lanterns are a great way to add some spookiness around the house, but that takes time, skill, and effort. Creating cool glow-in-the-dark pumpkins requires no carving at all—and looks...

How To: Make Your Night Bike Glow in the Dark with Phosphorescent Paint

With gas prices constantly digging into your wallet, biking will always be a cheap and easy alternative for getting around—and it's a perfect way to get in a little exercise. But with the fall season about a week away, it is going to start getting dark a lot earlier and that ride home might be a little more dangerous. So to save yourself an unexpected trip to the ER, take a little time to make your bicycle impossible to overlook.

How To: Discover the Hidden Colors in Everyday Objects with This DIY Video Spectrometer

A spectrometer is a device that splits light into all of the different colors it's composed of that can't be seen with the naked eye. It does this by using a prism to refract or bend the light. Jeffrey Warren over at Public Labs created a tutorial showing how you can make your own video spectrometer and create spectra like the one pictured below. Any guesses as to what the subject is? Believe it or not, that's what whipped cream looks like when viewed through a spectrometer. You can do this w...

How To: Spruce Up Your Bicycle with This Wooden DIY Riser Handlebar

Looking for a way to make your bike stand out? You could light it up with LED rim lights or turn signals. Or if you're looking for something a little less flashy, you could make your own set of custom wooden handlebars like these by furniture designer David Moore. To actually make these wooden handlebars, you will need some woodworking tools, not to mention some actual woodworking skill, or at least the tools and some knowledge on bending and forming wood. In his video below, David shows exac...

News: Quite Possibly the Best Lightsaber Replica Ever (This Is Not a Jedi Mind Trick)

Bradley Lewis is a visual effects artist for BioWare by day, but in his spare time he runs Slothfurnace, a blog dedicated to showcasing his incredibly realistic lightsaber replicas. His latest, which took 18 months to build, is Obi-Wan Kenobi's Reveal Lightsaber from A New Hope. It was made with a real crystal, just like the movies, and has a Crystal Focus Saber Core designed by Plecter Labs which controls the light and sound. The blade is composed of 84 LED lights and powered by two 3.7 volt...

News: This Levitating Light Bulb Defies Gravity (And Ditches Unsightly Power Cords)

Helping to prove that science is way awesome, an 18-year old electrical engineering student has successfully made a light bulb float. His name is Chris Rieger, and he's been working on his "LevLight" project for about six months now, with pretty amazing results. This feat of ingenuity was accomplished by using magnetic levitation, although that over-simplification masks how considerably difficult this undertaking was.

How To: Light a Fire with Your Pee!

This isn't looking good at all. What was supposed to be an easy day hike is quickly turning into a life-threatening situation. Your highest priority is to get a fire going before nightfall. But you can't use your water bottle because all of your clean water is gone. This is a challenge that's going to require a little more creativity... You're going to have to light this fire... with your pee! Can you use your PEE to START A FIRE? You'll know after you see this! If you like survival and fire-...

How To: Light a female model in Cinema 4D

In this video series, our expert John Carstarphen will show you how to create an array, do a light falloff, change the light intensity, and scale an array. He will also teach you how to do overall illumination, use the area light effect, create realism with shadows, and use mood lighting.

How To: Deep-clean your carpet

When you clean the carpet in your home or apartment, it seems like that dirt just comes right back the next day. It's never really clean. Well, that could be changed with a deeper clean. Deep-cleaning your carpet can offer benefits including getting rid of dust mites and allergens. Not to mention dirt.

How To: Make a light board

Looking for a great idea for a science project? In this video series you'll learn how to build a battery-run light board which can test the electrical conductivity of various objects. You can find these supplies easily at your local hardware store.

How To: Travel light to avoid baggage fees

It seems like there's never any breaks in air travel when it comes to money. The airfares just keep rising, and now most major airlines charge for all checked baggage, so carry-ons are the way to go. But you need to know how to take it easy with your packing list. Pack light and travel without the burden of that extra $15 or more per bag.

How To: Bake a delicious buttermilk blueberry crumb cake

This blueberry crumb cake is practically a masterpiece, if you dare try too make it. If you're up for the challenge, this moist and tender crumb cake packed with fresh blueberries and a delicious crumb topping will never last a day in your home. This yummy cake is hard not to like. It's irresistible. Check out this video recipe for baking buttermilk blueberry crumb cake.

How To: Draw a caricature of a truck

This video demonstrates how to draw a caricature of a truck. Begin with a rectangular shape that is slightly bigger at the top and has rounded corners. This will be the grill. Create an inside border. Below the grill, draw a front bumper. At the top corner of the grill draw a rectangle that is divided into two halves and shade the top section of each half. This is the windshield. Draw hatch marks in the center section of the grill. Above either side of the bumper add narrow divided rectangles...

How To: Survive an earthquake

Feeling unprepared for the next earthquake? In this tutorial, learn what to do and what not to do to survive "the big one". You'll be surprised to learn that hiding in a doorway is a myth!