Communications Electrical Chemical Search Results

How To: Hack Your Old Phone Line into an Emergency Power Supply for Your Cell Phone

"Ahoy-hoy." If telephone titan Alexander Graham Bell had his way, we'd all be answering phones like Mr. Burns. Thankfully, frienemy Thomas Edison had enough sense to realize we weren't always on the briny. He preferred "hello" as our standard telephone greeting, which he is credited with coining in 1877. Fellow American pioneer Davy Crockett actually used it as a greeting first in 1833 (as compared to an exclamation)—but in print, not over the phone.

How To: Are There Bedbugs in Your Library Books? Here's How to Spot and Destroy Those Bloodsuckers!

Of all the places you'd think to check for bed bugs, I doubt that library books would be at the top of your list. As odd as it sounds, though, libraries and library books are some of the most common places for bed bug infestations. Libraries all over the country have reported bed bug problems this summer, and some have even had to temporarily close to take care of the problem. But before you vow to never set foot inside a library again, here's a little primer on how to check your books for be...

How To: Make A High-Lighter Stun-Gun

The Stun-Gun In this article, I'll show you how to make a small, weaponized highlighter. Before I get into how to built this device, let me warn you. This device is harmful! When used, it can cause burns and/or serious muscle spasms. The voltage is potentially deadly! DO NOT attempt to build this device unless you are experienced with safety, electronics, soldering, and understand circuit schematics.

How To: Hack Urban Rivals (08/24/09)

In this eight minute video the host of the video conveys the methods and techniques that can be used for hacking the "Urban Rivals" video game. By use of Microsoft Word, the host types out the methods that are being used. This typing makes for a clear and easy to understand communication system to the viewers. The first step that is thoroughly explained by the host is simply to make and account. This makes it possible to play Urban Rivals in the first place. Throughout the rest of the video, ...

How To: Do Well on Your First Job Interview (For Students)

I know there are many students going for their first job that are new to the whole interview process. This is why I’m writing this article—to provide some tips on making your first interview experience simpler and hopefully successful. I’m currently in a university, but I had my first job when I was in ninth grade. I’ve held a few jobs and have undergone interviews many times. Sometimes they didn’t go so well, but I did learn from my mistakes. As I learned, I became better at interviews and s...

How To: Style Stellar Brows

The importance of the brow has not been forgotten as much as it has been overlooked. A natural tool of communication, the brows can convey surprise, disdain, and sorrow with a lift, a furrow, or an expressive softness. The masters of makeup, like Max Factor and Ben Nye, knew the importance of perfectly styled brows, and how that would affect the work of the actors with whom they worked.

How To: Break a fast

Dr. Aris Latham suggests setting standard plans for breaking a fast for most of people that he interacts with because the animal body has been programmed to eat in a certain way. This is necessary to train your body well so as to survive and be healthy. Divide your day into 3 equal parts of 8 hours. Take the sleep part of the day where you deal with the waste in your body and create energy within the body. The next period when you get up is basically when you break your fast when your were sl...

How To: Take Apart & Clean an Xbox 360 Power Supply

YouTuber xCrAnKsHoTx teaches you how to take a apart an Xbox 360 power supply, aka power brick, in order to clean it. This could help prevent any red light issues, or overheating in the long run, so it's good to do as maintenance every year or two to remove all the dust in there.

How To: Install an electric garage door

In this online video series learn how to install electric garage doors from licensed engineer and licensed home inspector Drew Finn as he demonstrates electrical garage door installation including: mounting the door bracket, attaching the rail to the head, installing the drive belt, mounting the wall bracket, attaching the rail to the wall, attaching the head to the ceiling, attaching the door to the rail, installing the electric eye, wiring the head, installing the wall switch, testing the d...

How To: Cut and bend sheet metal

In this series of video clips, you’ll learn tips and techniques for using various types of metal shears, including how to use hand-held and foot-operated types of metal shears, and how to use a metal press and metal hole punch. Expert Jon Olson offers advice on cutting procedures, the proper clothing and precautions, and advice on maintaining and cleaning metal shears. Jon also covers the electrical requirements for operating an electric shear, the various points of danger when operating the ...

How To: Use a finishing sander

In this online video series, learn how to use a finishing sander and how to maintain it, from woodworking instructor Jon Olson. He will teach you the parts of a finishing sander, and general safety and electrical safety for using a finishing sander. Jon will demonstrate how to replace the sandpaper of your finishing sander, how to hold your finishing sander, how to use proper sanding technique with a finishing sander, how to sand edges of wood using a finishing sander, how to use the power sw...

How To: Change an alternator

In this online video series learn how to change the alternator on your car from certified mechanic Nathan McCullough. Watch these videos and learn alternator diagnosis as well as how to disconnect the battery on your car; and how to locate the alternator; how to remove the alternator by disassembling the intake, removing the throttle linkage and radiator hose; learn how to unplug the vehicle electrical connectors from the alternator; how to remove the serpentine belt; and how to install the n...

How To: Stop Bike Thieves Dead in Their Tracks! Make a Magnetically Controlled Bike Alarm

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 in the city, chances are it will be stolen. Locks barely deter thieves armed with bolt cutters and crowbars. Throw the bike thieves for a loop and make a tilt-sensitive alarm. It will hopefully startle your bike's assaila...

How To: How The Internet Works

Sure, you go online to email and shop and do research. But have you ever been curious about how the internet actually works? Don't worry, you don't need a degree in computer science to get a handle on how your info gets from point A to point B. Learning the basics of the internet will give you a whole new appreciation for all those emails and chat messages that seem to magically appear. Get ready, because we're about to enter the wonderful world of digital data!

How To: Build Your Own Mini Altoids Guitar Amp for About $5

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 guitar amp, a simple LM386 amplifier can crank up those signals loud enough to play through any speaker.

How To: Build a Laser Trip Wire Alarm System

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 triggers for this boundary could be as simple as a pressure sensor, or as complicated as a laser network. They all do the same thing, but some work better than others.