Copper-still

The very first banknotes were used by the Chinese in the 7th century, during the Tang Dynasty. Before it was used as an actual currency, paper money was part of a deposit system in which merchants would leave large amounts of coins with a trusted associate and receive a paper ...more

Glow sticks, a popular favor at parties and outdoor events, and a must-have on Halloween, can be traced back to the United States Navy in the mid-1960s. The military desired improved visibility during night operations, and glow sticks, with their small-size portability and lac ...more

This article is a guide for making Chainmail Armor from start (simple wire) to finish (a finished chainmail shirt). We will be using the European 4 in 1 weave, as this is the most common weave. This is the weave that you usually see in movies. There are several sections to thi ...more

In this article, I'll be showing you how to make a simple yet effective static electricity generator. Basically, this device allows you to carry a constant static charge on your body and discharge it on anything grounded or of opposite polarity. The electricity generated is ar ...more

We see Steampunk props all the time and wonder where the maker found all their pieces. In fact, for some people it's almost like a game to examine each prop and see if they can name all of the original parts. However, for a newcomer (or a novice at prop-making), it may be rea ...more

What I'm going to do in this tutorial is, as the title implies, teach you how to make nearly anything look like metal. This can especially come in handy in Steampunk, as most of us don't have the ability to machine brass. We do, however, have access to wood, PVC, and spray pai ...more

White or light-colored dinnerware is a classic: it looks crisp, clean, and elegant. The only problem is that after you've used it for a few years, the surfaces bear a lot of grey scuff marks from forks, spoons, and knives being dragged across the surface. It's tempting to don ...more

If you've recently joined the ever-growing ranks of the cable cutters, you're far from alone. More and more people (myself included) are getting fed up with service providers' outdated subscription models and absurd pricing—and canceling their service. And why not? There are ...more

Welcome to Math Craft World! This community is dedicated to the exploration of mathematically inspired art and architecture through projects, community submissions, and inspirational posts related to the topic at hand. Every week, there will be approximately four posts accordi ...more

There's a lot that goes into making a nice crystal radio set, so this is going to have to be broken down into two parts. The first part is the actual making of a functional radio, and the second part is making the whole arrangement look nice. In this part, I'm actually going t ...more

In this project, you'll learn step by step how to modify a microwave oven transformer into a high-current device that can pump out 800 amps of electrical current, which is enough amperage to melt metal. If you liked the Metal Melter you saw in my previous project, here's how y ...more

I love making beeps and bloops with the Arduino pitches library, but sometimes archaic 8-bit tunes just don't cut it. Whether you want your robot to terrify your enemies with a demonic synthetic voice, you just need a pocket boom box on the go, or you want to a miniature guita ...more

Hardware hacks are something I feel we don't get enough of at Null Byte, so today I figured I would introduce a fun one. I've always been a curious hardware hacker. Taking things apart and learning how their internals work has always been a part of my nature. Quite some years ...more

Back in 2007, YouTube user HouseholdHacker posted a parody video on how to make a high-def speaker for under a buck. MythBusters took on the challenge and busted it. Although that particular method doesn't seem to work, that doesn't mean you can't make your own speaker for le ...more

In this series, I'll be exploring electromagnetic weapons, how to build them, their function and application to the future, and the amazing possibilities electromagnetism has to offer. First, the electromagnetic pulse generator, or EMP. You've probably heard of these before, a ...more

In this article, I'll show you how to build a coil gun. A coil gun is a device that fires magnetic projectiles at high velocities, using electricity. Coil guns require no explosive propellant, therefor can be fired an infinite amount of time, providing that there is ammunition ...more

In the following video, I demonstrate how to create a device capable of charging the body of anyone who wears it with static electricity, allowing a powerful shock to be discharged into anything that is touched. This grants the wearer the ability to do some pretty amazing thin ...more

RFID chips are everywhere. They're in passports, credit cards, and tons of items you've bought in the last 5 years or so. Big retailers like Walmart started using tracking products with RFID as early as 2004, and today, they're used in everything from mobile payments to hospit ...more

In this article, I'll show you how to built a Wireless Transfer of Energy Transmitter. Simply put, this device will send electricity to a florescent light bulb and light it up, from up to three feet. The idea originally (at least, prominently) came from Nikola Tesla (read more ...more

Whisking liquids seems somehow quaint, especially since there are good, cheap devices out there like immersion blenders and hand mixers that can whip cream, turn egg whites into meringue, and mix batters for you. However, I still love my whisk and use it often, and here's why ...more

In our first part on software-defined radio and signals intelligence, we learned how to set up a radio listening station to find and decode hidden radio signals — just like the hackers who triggered the emergency siren system in Dallas, Texas, probably did. Now that we can hea ...more

The telecommunications industry has come a long way since Ma Bell opened the first telephone exchange in the late 1800s. With the advent of fiber optics and wireless broadband technology, we no longer have a need for a dedicated phone connection, as today's data networks can c ...more

In a previous article, I demonstrated an Arc Welder made using parts from old microwave ovens. Video: . Here is part 1 of 2 on how that arc welding machine was made, and how you could make one too! This is the first of two parts on building it, focusing on the modification of ...more

Surveillance is always a useful tool in a hacker's arsenal, whether deployed offensively or defensively. Watching targets yourself isn't always practical, and traditional surveillance camera systems can be costly, lacking in capabilities, or both. Today, we will use motionEyeO ...more

Duct tape is the king of all household items. You can use duct tape for practically anything, like this sweet wallet. But duct tape isn't the only crafty tape out there; masking tape holds its own, too. You may already know that you can make homemade speakers using an inflate ...more

A typical resistance spot welder can range in price from about $200-$800, but with a little resourcefulness and a bit of free time, you can make one like this for about $10 or less. Before starting on this project, there are a couple of videos you should check out, because yo ...more

Fingers are very useful for many things in life—but fingers get dirty. With most smartphone and tablets using touchscreen technology, our fingers have become our greatest technological asset. But if you want to keep your phone or tablet from looking like this: Then you can try ...more

If you haven't met a person that's broken a pair of headphones, you might need to get out more. No matter how expensive or cheap a pair of headphones are, the sound can get buggy, the wire can get cut, or the headphone jack itself can be broken or ripped off the cord. But inst ...more

Apple has something big in store for consumers in 2017 to mark the 10th anniversary of the iPhone. One major surprise is that Apple has decided to forgo on releasing a 7S in favor of a redesigned iPhone 8 and 8 Plus. To further commemorate its 10-year milestone, the Cupertino- ...more

For so many of us, bakeware is bakeware. As long as it's oven safe and able to tolerate the high heat, it's fine to bake in, right? Wrong! Don't Miss: 7 Must-Know Guidelines Bakers Swear By There's more to bakeware than we realize: the different casserole pans, baking sheet ...more

Making your own circuit boards can be a daunting challenge. You have to design a schematic, test it on a breadboard, design the board layout, and then after all of that, you still have to print and etch a board! Luckily, we have Fritzing. Fritzing is a free open-source PCB d ...more

Etching your own circuit boards is tons of fun, but etching requires strong chemicals to dissolve the copper plating on blank circuit boards. The normal ferric chloride solution works well, but can be expensive and leaves permanent stains. Luckily, we can whip up our own etcha ...more

Most of you probably spread ketchup all over hamburgers and fries. Some of you may even drink it straight. But did you know that tame (and slightly addictive) condiment in your fridge is also a powerful cleaning agent? Melissa Ibbitson, 19, consumes 3 bottles of ketchup every ...more

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 catas ...more

The new 007 film, Skyfall, comes out this Friday, and dreams of becoming a super-spy have taken over my mind. Only I can't afford any of James Bond's awesome gadgetry or amazing cars—and you probably can't either. But that doesn't mean you can't fake it a little by adding a t ...more

In this article, I'll be covering Triggers and Coils, part two of the series (see part one here). Generally, a simple EMP generator consists of four components; a capacitor, a transformer, a trigger and a coil of copper wire. The transformer component can be varied, but the co ...more

You may already know that you can build a functional circuit on a sheet of paper with the graphite from a pencil, but you'd probably never think of using it to fix an electronic device. This same principle can be used to bring back a bricked phone, but can also repair a damage ...more

At one point in time, Tesla coils were actually used for things like wireless telegraphy and electrotherapy, but as technology advanced, they shifted to a slightly more enjoyable purpose—entertainment. What's even more entertaining than using a Tesla coil? Building your own. O ...more

Why do we still need to plug in our phones to charge them? Wireless charging exists, and has for quite some time, but most manufacturers don't include it in their devices. When it comes to the Samsung Galaxy S4, you can buy a QI-compatible wireless charging kit, but between th ...more

One of the more enjoyable parts of Christmas (other than opening gifts of course) is going out to find the perfect tree, struggle bringing it into the house, and decorating it. As the years went by, I realized that our tree looked exactly like every other tree in the neighborh ...more

In this article, I'll show you how to create a simple yet effective way of scaring off intruders. Of course, there are methods around this approach, but it's great for office pranks and general fun. The project requires a little background knowledge in electronics and circuitr ...more

In this article, I'll show you how you can make your very own bullet/shell bottle opener. All you need is a .50 caliber deactivated round and some workshop tools! Materials and Tools .50 caliber bullet/shell (look online, or you can get one here) Hacksaw (a saw intended to c ...more

Homemade circuits are amazing. You can build any kind of circuit on a simple perfboard, as we have seen in previous projects. However, some projects require very tiny circuit boards. We could special order some boards from a printed circuit board (PCB) factory, but that will m ...more

Even the most seasoned kitchen cooks experience the annoyance of accidentally burning food on their pots, pans, and casserole dishes. When dishwashing soap and water doesn't work, what is the best way to remove burned-on gunk from your cookware? For the simplest method that r ...more

General Electric isn't known for their Christmas lights, but maybe they should be, because their GE Color Effects are pretty awesome. Especially the LED Color Effects G-35 String sets. And especially when someone named Darco hacks them. Darco, whose real name is Robert Sun Qu ...more