Eavesdropping from a distance can be tricky because it usually requires some sort of bug or transmitter. It's easy to transmit audio through lasers, but you can also use lasers to build a microphone that picks up audio from a distance. LucidScience built the Laser Spy System for about $20. To make your own, you'll need a cheap laser pointer, an NPN phototransistor, a headphone amp, and a few other small pieces listed below. A light-to-sound circuit is installed in a small plastic box with the...
Rooting your device gives you all-powerful administrative access to your phone and its system settings. Of course, with such power comes great responsibility, and sometimes that responsibility becomes to burdensome or just plain unnecessary.
The worst part of moving into a new place is, well...moving. It's tedious, a lot of hard labor, and it can take forever, and don't even get me started on all those labels. It's also one of the only times in your life when everything you own can be stolen at once, since it's sitting in a movable container. Rather than risk losing everything, try this DIY Moving Truck Alarm System by Tim Flint that lets you know when the loading door is opened so you can catch would-be thieves red handed.
Combination locks in Minecraft can be really simple or frustratingly difficult, but no matter how complicated they are, some of them fall victim to the same simple exploits.
What's nice about Minecraft 1.3 is that it makes minecart stations so simple. Before, you needed redstone and buttons and powered rails in order to make a good minecart station. Now you hardly need anything at all! That said, if you want to be snazzy, all of the minecart stations we covered in this earlier article are still completely functional. You may also want to check out this article on how to make empty minecarts come back to you, if you want some extra bells and whistles.
You can do a lot more with playing cards than you'd think, like turn them into gift boxes, fling them like throwing stars, and make them levitate or disappear. You can even make them recharge your batteries. Instructables user Shawn Frayne was sick of having a bunch of dead batteries lying around, so he developed a cheap and easy way to always have a charged one within arm's reach by turning a normal playing card into a super simple solar-powered battery charger for rechargeable AA and AAA ba...
There's no charge for this electricity! All you'll need for this project is... Now, watch and learn how to make your own emergency power if you find yourself in a bind.
Do you have two dollars and a water bottle? Then you can put together this simple but awesome solar-powered lantern that will provide more than enough light to read by at night.
Okay, you can't really become the king of the world by stacking three pistons. For that, you have to stack four pistons.
If you're looking for an efficient way to communicate with your online customers or fan base, one way to accomplish this is by setting up a PHP database of people who have signed up with your site, so you can send them email blasts or news updates.
Jailbreak 3.1 iPhone & iPod Touch on Windows
Your Windows computer may be experiencing some issues, and those issues may be a direct result of computer viruses and malicious software from the internet. One of the simplest ways to find these issues and repair them is by using a freeware program called System Repair Engineer (SREng). But that's not all it can do… check out the video to see a basic overview for using SREng.
This video describes how to make a system restore point. First we have to go to click the start on the keyboard. Next select the computer and go for the properties. Next go to system protection. Next go the protection settings and highlight the operating system and give option of “on” on the protection and just click the create. Then you will get a box of system protection. Next you can give a name and then click ok to that it will take some time. Next if you go for system properties you ...
In this how to video, you will learn how to jail break your iPhone or iPod Touch to 3.0.1 firmware. First, you will need to download the firmware and Redsn0w. Install and open Redsn0w. From here, click browse and open your firmware. Next, click unlock and press next. Next, find your boot loaders if you have a 2G. If not, ignore this part and click next. Next, plug in your device into the computer. Turn it off and then click next. Hold your power button for 3 seconds, hold down the home button...
Helpvids explains the minimum system requirements for the Windows 7 operating system. While the minimum system requirements are explained, the viewer is also reminded that using the minimum requirements are not advisable and could cause your computer to run super slow.
In this video the instructor shows how to solve a system of equations by elimination method. First you need to know how many possible number of solutions you can get by solving a system of equations. There are three possibilities. In the first case there are two lines with different slopes, so they intersect at a point which is the solution to that system. In second case there can be two lines with same slope but are parallel to each other. In this case the system has no solution. In the thir...
This how-to video is about how to winterize your car exhaust and fuel system.
New to Ubuntu Linux? This computer operating system could be a bit tricky for beginners, but fret not, help is here. Check out this video tutorial on how to install GRUB 2 and apply themes on Ubuntu Linux.
Need to know how to customize your general system information? It's handy if you build or fix your own systems and want a way to brand them, or just to personalize your system. This is a great tutorial on customizing operating systems in XP by informationleak.net hacker Halla.
Check out these video tutorials on the science of the human thoracoabdominal wall muscular system. These eductional videos will show you all you need to know about the thoracoabdominal wall, whether you're a physiologist, biologist, a medical student, or just a fan of science and human anatomy.
Learn how to do long stride runs across a floor. Presented by Real Jock Gay Fitness Health & Life. Benefits
Learn how to use a medicine ball to do power snatch to toss ups for height. Presented by Real Jock Gay Fitness Health & Life.
Learn how to do medicine ball power press toss ups for height. Presented by Real Jock Gay Fitness Health & Life.
Learn how to do POP push-ups and sculpt your body without weights. Presented by Real Jock Gay Fitness Health & Life.
See how the Polar Bear System works in these games of Danielsen's. You'll see how the system works, how to do it, and why you should move where you move. Each video shows a different game, to make sure you cram the knowledge in.
Grandmaster Henrik Danielsen explains the different lines in his F4-System, the Polar Bear System. If you need a new way to play chess, then this is just right for you. See what he has developed in this two-part video.
This video series explains how to charge and evacuate the air conditioning system in a vehicle. Lots of machines are involved so you won't be able to do this at home.
New to Ubuntu Linux? This computer operating system could be a bit tricky for beginners, but fret not, help is here. Check out this video tutorial on how to manage CD/DVD images with ease on Ubuntu Linux.
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to solve non-linear systems of equations in algebra.
System of equations is nothing but a system which contains more than one linear equations. This system of equations can be solved to arrive at the solution of the system. A simple system of the linear equations can be a pair of equations. To solve this kind of system you can employ the substitution method. So take the two equation of the system. Solve for the value of y in the first equation in terms of x. Now take this value of y and substitute in the second equation y value. Now the second ...
This video is a Hobby Estore Video Tutorial that will show you how to repair or replace the ACME remote start system in your radio control cars. You will know you need to take this step when your RC car doesn't start or when you push the start button and all you hear is a clicking noise. The first step is to remove the remote start system and this can be accomplished by taking the top cover off of the car and then unhooking the exhaust hose from the remote start system. Then take the cover of...
In my first installment in this series on professional hacking tools, we downloaded and installed Metasploit, the exploitation framework. Now, we will begin to explore the Metasploit Framework and initiate a tried and true hack.
With portable devices being a necessity in modern everyday life, they may be subject to overuse, improper charging, or normal wear and tear. For those people who carry around their smartphone or iPod with them all of the time, how many times have you been out and about just to have your portable device die on you?
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.
In this tutorial, we learn how to increase the power of a 5mw green laser pointer. First, you will need to gather the parts you will need, which include a vise, the laser, a soldering iron, and a block of wood. After this, cut the block of wood in half and then put your laser pointer in the middle. Pull and twist so the module comes out, then pull the foam protector off. Don't lose any small parts that come out. Next, unscrew the silver cap and then put on your new laser module. Replace all p...
So, a lot of people seem to be having trouble rooting their Motorola Droid X smartphone from Verizon Wireless using ADB (Android Debug Bridge). Well, there is an alternative for those having problems with the ADB version. You will need to have a Wi-Fi or Bluetooth widget handy for this hack. If you follow the instructions in the video, you'll have a completely rooted Motorola Droid X cell phone. Try it out.
Yes, the Droid X from Motorola can be rooted, and yes, you can do it at home. Just make sure you follow the directions precisely. If you succeed, you'll have a completely rooted smartphone. eFuse doesn't matter. If you want to expand your options on Verizon Wireless's Droid X, then you just have to take a chance… use this video in conjunction with the links and description below.
In this tutorial, we learn how to set up a Wi-Fi network with a Linksys router. First, go to your cable modem and remove the yellow Ethernet cable. After this, plug the Ethernet cable into the very first port of the router and plug the other end into your computer. After this, connect any other electronics you have with cables, then plug the router into the wall to give it power. Next, turn the power to the modem and router back on. When finished, you should see a new Wi-Fi network appear in ...
In this video tutorial, viewers learn how to get a long golf drive with a pace of power. The key to hitting long drives and distance is to have good tempo and balance. To achieve that, hit with a smooth 3 second swing. Count 1-3 seconds when making one single swing and hit on the 3 second mark. Another way to achieve a long drive is to use a metronome and work with the tempo when swinging. This video will benefit those viewers who are interested in playing golf, and would like to learn how to...
Learn how to wrap a short electrical cord. Treat your power cords right, and make them last longer, by learning how to store them correctly.
