Replace Electrical Switch

Old Hard Drive + MP3 player = Music This equation just doesn't make sense. If you're an iPod addict, the HD element is redundant! Well, take a second look at what constitutes a speaker and what a hard drive is made of. They are more alike than you'd think. Rip apart a junked ...more

The Home button on an iPhone does a lot. That's not necessarily news for anyone who's ever owned an iPhone with a Home button, but what you might not know is that it's capable of so much beyond the standard everyday functions. So if you have an iPhone 7, 8, or the new SE model ...more

Your phone's volume panel is one part of the user interface that usually goes unnoticed to themers and developers. With themes capable of changing the look and feel of the fingerprint scanner, keyboard, and other system apps, this central aspect of the UI seems to get lost in ...more

EternalBlue was a devastating exploit that targeted Microsoft's implementation of the SMB protocol. Metasploit contains a useful module that will automatically exploit a target, as long as it's vulnerable. But what if we wanted to exploit this vulnerability without Metasploit ...more

The iPhone XR offers a discounted experience compared to the expensive iPhone XS and XS Max. However, that lower price tag comes with some caveats, such as "Haptic Touch" in lieu of 3D Touch. If you think these two "touch" features are the same, think again. Before you get an ...more

Your iPhone's built-in Voice Memos app is a great way to record the audio around you, whether it be conversations, lectures, meetings, interviews, discussions, chitchat, gossip, or other kinds of talks. But if your goal is to record audio on the down-low without being noticed, ...more

Over time, the dryer belt can become hard and brittle when the drum is turning loud noises such as squeaking, squealing or thumping noises can occur. Replacing the belt is an easy task for the do-it-yourselfer. All that’s required is a few simple tools. Here’s a step-by-step g ...more

The best part about April Fool's Day is that everyone is fair game. Even big tech companies like Google and Twitter get in on the action every year. It encourages even the most uptight, unfunny party-poopers among us to have a little fun driving each other crazy with pranks — ...more

While most kids his age are busy playing Fortnite, 11-year-old Yumo Soerianto is developing augmented reality games. Kids like Soerianto are the future of the augmented reality field — they'll likely be coming into their own as professional developers right as AR technologies ...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

I love my laptop. It goes wherever I go. Unfortunately, that means that it also gets pretty grubby after a while. The screen gets dusty. The frame gets smudgy. The spaces between the keys fill up with crumbs of questionable origins. And my desktop? That thing is a dust bunny m ...more

You've all probably heard about Apple's attempts to thwart iPhone 4 users from opening up their own devices, thanks to their sly maneuvers in switching out everyone's screws with those funky pentalobular screws. But one thing Apple will never learn— they will never have comple ...more

Musical boxes are best known for their kitschy designs and somewhat trivial renditions of musical masterpieces. They tend to frequent the dresser of young girls or elderly woman hanging on to their youth, and for the most part, they remain cutesy and harmless, but when feature ...more

Remember those old vinyl records? Remember jumping on the 8-track bandwagon? Switching over to cassette tapes? How much money you spent converting your music collection to compact discs? To MP3s? How about your VHS movie collection? You probably emptied the bank switching ove ...more

Remember the arcades? Were you saddened when they closed up one by one, leaving no outlet to actually go out and socialize while you played video games? With all the home consoles and internet connectivity, gaming has evolved, but the social factor has been eliminated. Sure we ...more

The internet is something most people rely on, so when you buy a used laptop without a wireless card or yours needs to be replaced, it's easier to do it yourself. Having someone else do it can cost more than you think, so here's an easy way if you own a Dell Inspiron E1505. R ...more

This video gives a step by step tutorial how to service a Porsche 944. The service is demonstrated on an S2, but most steps are very similar for other versions. The video has a German soundtrack but English subtitles are available at YouTube. Working under the car Remove engi ...more

Wall studs are both critical for maintaining the structure of your home and supporting items of weight and function on the interior walls (e.g. cabinets, shelves, plasma TVs, etc.). With wall studs playing such a critical role, consistently being able to find them is important ...more

Some of the most popular cellular devices on the market today are the iPhone 4 and 4S models. Seeing as they are made of glass, it's not uncommon for the back panel to break. Also, with the popularity being so high, you might just be looking for a way to set your device apart ...more

First, I would like to explain that among my family members, I am considered somewhat of an oddball. Mostly because of some of the mods that I have performed on a few of my woodworking tools. After I show you what I did to my drill press, you may be inclined to agree. When I f ...more

This article will show you how to make a proportionally correct 1/187 (about) size Hubble Space Telescope. I tried to add as many details as possible, but it was hard at such a small size. It was really easy, but it did take a while to make. Here are some specs for the real H ...more

Need to replace your old door knob? Follow Milan Rosan as he takes you through a step-by-step, do-it-yourself approach to installing your own handle set in your home. Remove old door knob. Properly remove screws. Remove latch and scratch plate. Properly remove screws, then ...more

Microsoft recently released the first sneak peak of their new operating system, Windows 8, and it's a pretty big departure from the last few major updates. The new Windows 8 was built from the ground up, and is designed primarily as a touchscreen interface, which is perfect fo ...more

PopSci breaks down how basic functions of R/C work. Once you've mastered it, the sky is the limit. You can remote control anything. Well, almost anything. "The basic R/C setup consists of a transmitter, a receiver, and several actuators on the receiving end—either servos (ele ...more

Computer viruses are terrifying. They are undetectable, dangerous, and operate constantly right under your nose. For the average computer user, there are only a few repair options. You could buy expensive antivirus software that causes more problems than it fixes, you can wipe ...more

Have a few light bulbs and a blowtorch? Then join the folks over at Harvard in a cool science experiment on the conductivity of glass. As you well know, glass is an insulator with low conductivity and high resistivity. In the video below, they flip the switch, demonstrating ho ...more

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. Be sure to read the in ...more

IEEE Spectrum examines the practice of cryonically freezing the dead, with the intent to "reboot" when medical advances are prepared to undo their death. Is it just a matter of time (cryonics scientists predict 100 years) or pure quackery? Here's how it works: "Before the b ...more

Solar panels are an amazing invention. Catching energy from the Sun before it even enters Earth's food chain, photovoltaics are like an all-natural nuclear power plant. Unfortunately, the constituted parts of a solar panel are rare, valuable, and subject to the coercive forces ...more

Bikes are a great form of transportation. They use human energy more efficiently than any other machine. You can keep it in your closet or hallway. You can even take it on the train in a pinch. However, this portability is also the bike's biggest draw back. If you own a bike i ...more

Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the "alarm administrator" that there is an intruder entering the previously designated boundaries. The trig ...more