Show Circuit Breaker

A deck of cards may be a magician's best way to demonstrate his or her's sleight of hand, but for the prankster, it's the perfect way to deliver a shocking 300 volts of electricity! And that's exactly what I'm going to show you how to do today. Stuart Edge used it in his "Elec ...more

WonderHowTo is a how-to website made up of niche communities called Worlds, with topics ranging from Minecraft to science experiments to Scrabble and everything in-between. Check in every Wednesday evening for a roundup of user-run activities and how-to projects from the commu ...more

With this video tutorial from Household Hacker, you will learn how to make a functional circuit on paper. Really—on paper! See how to make an LED light up with a lead-based paper circuit and how to make a resistor on that circuit. It also shows how to make a flashlight out of ...more

[community/members/babblin5/ Babblin5] is a tenacious tinkerer. Here he shows us HowTo get a dead battery running again. How? Well, it becomes a bit involved as he splices together a cordless drill, voltage regulator, alligator clips, a circuit board and a hand crank. What w ...more

One of the many reasons Circuit City should go out of business is their sale of ridiculously expensive cables, wire and cords. The secret to the industry of Monster Cables is that it is unnecessary and ineffective. Gold-plated or otherwise, Monster's $100 cables are not intrin ...more

The calendar app is one of the unsung heroes found within your iPhone. It's the ultimate personal assistant that you've come to rely on to keep track of your schedule and ensure you never miss a class or meeting, all while reminding you of upcoming birthdays and deadlines to h ...more

If you've never heard of geocaching, it's kind of a grown-up treasure hunt you play everywhere in the world. GPS coordinates are given as clues and the players must find the cache box. There is usually a log book to write your name and a small toy or present to collect. The l ...more

Your phone's keyboard is one of the most commonly used apps. Whether you're typing out status updates, sending private messages, or just bombarding everyone in sight with as many emoji as you possibly can, you probably couldn't get by without a good keyboard app. Since Androi ...more

The internet is constantly under siege by bots searching for vulnerabilities to attack and exploit. While conventional wisdom is to prevent these attacks, there are ways to deliberately lure hackers into a trap in order to spy on them, study their behavior, and capture samples ...more

While Apple Maps didn't receive as huge of an update on iOS 17 as other apps such as Safari, Camera, Photos, Notes, Weather, and Messages, there are still some very important new features and changes you need to know about. The latest software update for Apple Maps adds a muc ...more

Spotify has caught up to Apple in monthly podcast listenership and is even forecast to surpass Apple soon, but Apple just made some serious changes to its Podcasts app for iOS and iPadOS that could keep Apple at the top. Third-party podcast players still offer features that A ...more

With just two microcontrollers soldered together, you can inject keystrokes into a computer from a smartphone. After building and programming the device, you plug it into a desktop or laptop, access it over a smartphone, and inject keystrokes as you would with a USB Rubber Duc ...more

Hackers and makers are often grouped under the same label. While hackers draw on computer science skills to write programs and find bugs, makers use electrical engineering to create hardware prototypes from microprocessor boards like the Arduino. We'll exercise both sets of sk ...more

It's an ongoing saga, and it's on the verge of ruining one of the most anticipated smartphone releases this year: LG's new POLED displays certainly seem to have a few issues. But the biggest issue of them all — an apparent susceptibility to screen burn-in — may not be the prob ...more

I've never met a kid who didn't love sidewalk chalk. There's just something about drawing all over public surfaces that seems to appeal to the rule-breakers in us all. And it's not just for kids—artists have done some pretty incredible works with the stuff, too. If you're look ...more

For those of you who are as unlucky as me with your Pineapple and need to re-seat or replace the aerial connector this will show you how. Step 1: Open the Case To open the case we need to remove the two feet on the base of the unit, they will likely be located underneath. In ...more

At night, it can be pretty difficult to see what's inside drawers and cabinets, unless you have night vision or something. Sure, you can turn on the light, but sometimes you're in such a hurry that you don't have 5 seconds to walk over to the light switch and turn it on. Perh ...more

Will the predicted apocalyptic date—December 21st, 2012—really be the end of the world? In this ongoing five-part series, we examine what would happen if zombies, nuclear weapons, cyber wars, earthquakes, or aliens actually destroyed our planet—and how you might survive. End ...more

Fireworks are the best part about the Fourth of July and other celebrations, but they can easily cause accidental injuries. It's both safer and more fun to set them off remotely, so we'll hack some standard fireworks with nichrome wire, a relay, and an Arduino to ignite remote ...more

One of the most popular usages of modern-day smartphones is listening to music. It doesn't matter if you download or stream your tunes, you are part of a massive group of users who do exactly the same. While statistics are a bit foggy on how many smartphones users download mus ...more

The ride-sharing firm Lyft and Faraday Future, a troubled electric carmaker and potential Tesla competitor, have quietly appointed new top executives, but like the rest of the industry, they struggle to find talent for their driverless programs. Lyft has tapped Salesforce.com ...more

My all-time top songs are the ones that speak to me on a deeper level, and it's through the lyrics that artists are able to make that connection. It's a feeling unlike any other when it seems that an artist or song is speaking exclusively to you or your current circumstance. ...more

Nowadays, protecting your valuables can be challenging especially when you're on the go. That's why I decided to make a little secret compartment inside my car. Only you'll know it's there because nobody will be able to find it. Not only that, but you'll have easy access to it ...more

As much as it pained me to lose lock screen widget functionality, I just can't bare changing out the sleek-looking lock screen that's standard on the OnePlus One. The latest OTA introduced a new transparent theme, and while that's a welcomed improvement, I need more options! ...more

I'm not entirely sure how to describe band Frenchy and the Punk, but if I say things like cabaret, punk, and fun, you'll probably get the idea. Their website calls them "rollicking flapper folk punk cabaret", which is about as many words as you need to describe them. I wouldn' ...more

The USB Rubber Ducky is a well-known hacking device in the cybersecurity industry, but it needs to be preprogrammed before it can be used. That means it's not easy to issue commands to a target computer since you can't interact with it from afar after plugging it in. And if yo ...more

Android 11 is available as a simple beta install for Pixel devices right now. Just visit Google's beta signup page, make sure you're signed in with the same account used on your Pixel, then opt into the program. You'll get an OTA update that will put you on Android 11 in no ti ...more

If you're ever lost or hurt out in the middle of nowhere with a dead cell phone, you might be able to "flag" down help as long as you're near some railroad tracks. Some train tracks carry a small electric charge as a means of detecting other trains for signaling or for detect ...more

Omniscience is not required to make some really cool shit happen. Yes, it took a while, but we can make fuel from the Sun! Solar panels are basically our answer to God. And now that we can make solar electricity, finding the most efficient way to harvest it is tricky. Some so ...more

If you're a regular Null Byte reader, you probably know your fair share of programming languages and have at least some experience with web or app development. But it's possible to apply your hard-earned coding and tech talents to other closely-related fields as well. The Com ...more

In iOS, the Control Center is an easy way to toggle settings such as Wi-Fi, Do Not Disturb, and Low Power Mode. Its Android counterpart is called "Quick Settings," which provides much of the same functionality with a few bonuses. If you're curious about how this toggle menu wo ...more

Essential just dropped the Oreo Beta Program for their flagship PH-1 phone. Users have been eagerly awaiting this update as the early Nougat builds of the PH-1 software have suffered from numerous performance issues and lag. The good news is that you can grab the Oreo update t ...more

A mention of the deep web can bring to mind images of drugs, hackers, and other criminal activity. Despite the presence of these elements, the Tor network is a valuable tool for preserving privacy and anonymity. And browsing the deep web and any hidden services can be as simpl ...more

While at work, you notice your gloves changing color, and you know immediately that you've come in contact with dangerous chemicals. Bandages on a patient signal the presence of unseen, drug-resistant microbes. These are ideas that might have once seemed futuristic but are bec ...more

The bumper for bObsweep Pethair and Standard are installed the same way. It holds the sensors that allow Bob to see any obstacles in his path. If a repair of the wall detection sensors is needed, the steps for replacing the whole bumper are the same when working on either bObs ...more

Want to find out if your neighbors are talking about you? You could always hack their webcam or turn your iPhone into a secret spy camera, but unless you have a key to their house, that could be tricky to do without getting caught. With this DIY parabolic microphone (archived ...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

Firstly, let me say a few quick things: Once built, this is a lazy (one button) way to harvest melons, but this is going to be a complex and lengthy build. This is a skeletal build, so covering things like the wiring is at your own discretion. Some materials can be replaced b ...more

In the music world, it's safe to say electric instruments are more versatile, but they lack the portability of their acoustic counterparts. However, with the aid of your smartphone plus an audio interface, you can play your electric instrument anywhere — with all the pedal eff ...more

The international, Exynos-powered Galaxy S7 and S7 edge have had a working root method ever since a few days after release. But the North American variants—those using Qualcomm's Snapdragon 820 processor—have locked bootloaders, and have proven to be almost unrootable up until ...more

Compared to Apple's products like the iPhone and iPad, Android phones and tablets are very flexible devices. For instance, you can set a new home screen, replace the lock screen, or even beam files using NFC — but that's just the software side of things, and the flexibility go ...more

We're still awaiting the arrival of consumer-grade AR smartglasses from the likes of Apple and Facebook. But that doesn't mean there aren't AR products out there to try this holiday season. The year 2020 marked the arrival of mobile devices equipped with sensors that are desi ...more

As I've mentioned in recent days, it was refreshing to discover that Microsoft's HoloLens 2 stage production was every bit as accurate as presented (check out my hands-on test of the device for more on that). But beyond watching Microsoft's deft HoloLens 2 stagecraft, and try ...more

The dark web is an intimidating place for a newbie hacker, but it's a powerful tool once you've learned to navigate it safely. To help you out with that, this guide will cover some need-to-know information for traversing the dark corners of the internet while keeping your iden ...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

I don't know how many of you had this experience in your youth, but when I was a kid, I used to actively think about what would happen if I suddenly woke up in a fantasy land, or were to pass through a portal into another space and time. I knew it wouldn't really happen, but w ...more