Make a Lighter with a Battery

How To : Light a light bulb with a potato battery

Following on from Edison's first lightblub moment back in 1879, the OU's Stephen Serjeant experiments with an alternative power source - the humble potato. Create a potato batter with a couple of screws and a light bulb.

How To : Start a fire with a battery and a staple

This young fellow demonstrates how to start a fire using a battery and a staple. He suggest you begin with a staple or any thin wire, a AA battery and a knife. On the negative terminal of the battery, he cuts off a piece of the insulation by following the small ring on the bat ...more

How To : Get the Most Out of Your iPhone Battery

The introduction of smartphones has been what some may see as a step backwards in technology regarding batteries. The first cell phone that I had would last 3-4 days on a single charge; however, the lack of functions minimized the use that is saw. The iPhone's feature-rich pl ...more

How To : Make a Fire Wire (Easy Steel Wool Fireworks)

Once you've reached an age where sparklers are no longer fun, it's time to upgrade to science and steel wool. It may be basic chemistry, but as you'll see in the video, simplicity can amaze more than complexity, as well as create some really impressive fireworks that are perfe ...more

How To : Make an electrical lighter

Make a lighter with one or two AA batteries and simple tiny wire!!! This is a fantastic homemade electrical lighter for any situation. You'll need two AA batteries, a push switch, a battery holder, wire, solder, soldering iron, electrical tape, crimper, and scissors for this c ...more

How To : Make sparks without matches or a lighter

How to make sparks without matches or a lighter If you camp a lot there is a good trick for making sparks without matches or a lighter. The biggest key to making a fire is to be able to do it when stuff is damp and wet. Lighting a fire in damp circumstances can be hard. You ca ...more

How To : Turn a pencil into an emergency light

You are stuck in the middle of nowhere and can't see a thing. Luckily you have pencil and your car battery. You can create 20 minutes of bright light using the graphite from a regular pencil, wired to the positive and negative of your car battery. Basically, the graphite serve ...more

How To : Build a portable power pack

If you're a geek, then this power pack will give you a total techgasm. The power pack allows you to charge pretty much anything you can fit into a 12 volt power jack in your car (where the cigar/lighter receptable goes). The power pack is a portable battery, so no need for cha ...more

How To : Make a lithium thionyl chloride battery

Watch this science video tutorial from Nurd Rage on how to make a lithium thionyl chloride battery, which is capable of generating 2.8v with enough current to power a LED. Warning: Thionyl Chloride is EXTREMELY toxic and this experiment must be performed in a fumehood by an e ...more

How To : Assemble a Survival Kit

I am writing this quick post in response to the recent earthquakes and tsunamis that are affecting Japan. As soon as the news broke, and we began to hear of tsunami warning for our area, I immediately realized how under prepared I was for a natural disaster. The thing that dro ...more

How To : Wire up crystal focus boards for Jedi lightsabers

Watch as Novastar and Gundamaniac demonstrate detailed wiring for a crystal focus board for Star Wars Lightsabers! Making your very own Jedi Light Saber may be a daunting task if you don't know what you're doing, but this four-part video tutorial will save the day from evil fo ...more

How To : Inspect your car alternator and fix it if it's bad

The alternator in your car is a vital part of your electrical system. If your battery is draining quickly or your battery light comes on for no reason, you probably have a bad alternator. Watch this video to learn how to assess problems with the alternator and fix them yourself.

How To : Make an LED floatie balloon

Light up your world with these beautiful and easy-to-make illuminated LED balloons. You will need: 1 ten mm non-diffused LED balloon duct tape two CR2032 3v Lithium coin batteries optional: helium These LED balloons are awesome. Cool for parties.

How To : Make silver different colors by anodizing

Watch this science video tutorial from Nurd Rage on how to make silver different colors by electrochemical anodizing. Without using paint, you can give a silver surface various colors by anodizing it. WARNING: Anodizing solution is corrosive, so wear gloves at all times when ...more

How To : Build a Leyden jar and use a capacitor

Simple yet effective, capacitors come in a dizzying array of forms and materials, vital to so many circuits for storage, timing, and filtration - the mighty capacitor! In this installment of the MAKE presents series, Collin Cunningham explains - how to build a Leyden jar, how ...more

How To : Make an optical theremin to play music

Watch as Kipkay from MAKE Magazine shows you how to make something really cool for your music skills, with parts from RadioShack. Everybody's heard of them, but nobody has one or knows how to play one... a theremin. You could be the exception as you see how to build your very ...more

How To : Use LED throwies to add color to your neighborhood

What's an LED Throwie? Watch this video and find out how to light up your neighborhood using colorful LED's and magnets! Yet another great idea for creating neighborhood art from Graffiti Research Lab. LED Throwies are an inexpensive way to add color to any ferromagnetic surf ...more

How To : Make a pair of high-tech night vision sunglasses

In this video tutorial you will learn how to make a pair of high tech night vision sunglasses. You will first need a pair of 100% clear sunglasses with nothing but UV protection. Then two sheets of theatrical photo gels, one congo blue and one primary red. Using the gasses as ...more

How To : Make a Banner for a Lightweight RC Plane

I decided to make a quick banner for my RC plane. It was basically free, but you might need to get a few materials if you don't have them. My plane is a Hobbyzone Champ, which is a hardy but tiny plane, weighing only 1.3 ounces with the battery. My how-to is modeled after this ...more

How To : Grow Plants With Compact Fluorescent Lights

I like to grow vegetables all year round, and I couldn't afford the big gas bulbs, or the power to run them. The big gas bulbs: can explode can burn you and your plants cost upwards of $50 a month to operate raise the temperature in your home, causing the air conditioning to ...more

How To : Set up automatic brightness on a Blackberry

Austin from 'Best Buy Tips and Tricks' give out a mobile tip on how to extend the battery life of your Blackberry by using the Blackberry's built-in function called the automatic black light dimmer. This function changes the brightness of the back light automatically depending ...more

How To : Make a lighted holiday bow

What a unique bow. Your gifts will be beautiful under the Christmas tree. Materials you will need are: plastic wrap, hot glue, LEDs, scissors, pliers duct tape, glue gun and glue, toothpicks and 3 volt batteries. First you take the plastic wrap and cut it about 5 times the siz ...more

How To : Prepare an emergency kit for your car

You may think you'll never be in an emergency situation, but you can never be too prepared! This video provides excellent tips on what to bring and do in an emergency situation. It takes only a small investment of your time and money to be prepared should you run into a probl ...more

How To : Make fire with steel wool and a battery

Build a fire without matches or a lighter so you wont freeze to death or attract predators in the wild. The finer the steel wool, the better. Most batteries will work but 9 volt batteries are the easiest.

News : The New Verizon iPhone Dissected

If you're considering getting the new Verizon iPhone, you may want to check out reliable teardown site iFixit. Although the exterior of the new phone may look the same as the old, the interior shows significant differences. A few notable distinctions (click through for the wh ...more

How To : Make an LED light brick

This video by makemagazine demonstrates a weekend project on how to make a LED light brick. The materials required for this project are listed on the link to the make magazine page in the info box or it can be orders as a kit from the make magazine store. Take the PCB (printed ...more

Making Electromagnetic Weapons : Semiconductor Lasers

I'm back with the third part to my laser weapon series (see part one and two), and I'll be explaining the function, application, and potential of semiconductor lasers, aka laser diodes. Surely, most of you have used a laser pointer at some point. Whether purchased at a dollar ...more

How To : Use the SD-8A battery pack for the Nikon SB-800

This video demonstrates how to use a Nikon SD-80 Battery Pack with a Nikon SB-800 Speedlight. The first step is to identify the different power adaptors on the ends of the cable leading to the battery pack. This pack is powered with AA batteries. Remove the outlet plate on the ...more

How To : Choose which driving mode to use in the 2010 Prius

In this tutorial, we learn how to choose which driving mode to use in the 2010 Prius. The Prius offers four drive modes: normal, eco, power, and ev mode. To activate the mode, press the appropriate button the center console and the light will appear in the center console. Now, ...more

How To : Improve your bike's night visibility

In some places, it's illegal to ride your bike at night without lights or reflectors, so if you plan on going for a joyride on your street bike, then you need to be prepared to share the road with vehicles and be seen. Appropriate gear and lighting are essential for safety whe ...more

How To : Use the Nikon SU-800 Commander

This video tutorial is going to show you how to use the Nikon SU-800 Commander speed light. It requires only one 123A 3V Lithium Battery. A tiny switch allows you to switch between close-up. Another flash can be connected to it by a long cord. SEL button allows you to select. ...more

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