In this video lesson, you learn how to find the area of a circle. The video starts with an explanation of the area's formula. This formula can then be used to find the area of any circle, given its radius, which is half the diameter of the circle. There are many applications for this formula, whether in architecture, or studying for a basic geometry test. Euclidean geometry is the cornerstone of any education, and this video teaches you one of the many formulas in geometry.
This video goes through the steps needed to sharpen a kitchen knife using a sharpening steel. The presenter goes through sharpening various knives, using two different sharpening steels. He shows the proper technique of how to use the steel, how to hold it and how to move the knife across the steel. He also shows how to check how sharp the knife is, by carefully moving your thumb down the blade, rather than across the knife, and also how to use a tomato to check for sharpness.
Heat the oven to 450 degrees F. Remove the roast from its packaging and place it in a sturdy roasting pan.
This video by makemagazine demonstrates a weekend project on how to make a LED light brick. The materials required for this project are listed on the link to the make magazine page in the info box or it can be orders as a kit from the make magazine store. Take the PCB (printed circuit board) and first solder the Resisters and Capacitors as shown. Next test the LEDs and separate them using a button cell batteries. Solder the LED, PIC micro-controller, DC power connector and tilt switch followi...
In this video, learn how to calculate one of the most important puzzlers in math - the area of a triangle. This is one of the first things you will learn in geometry and is helpful in math as well as science classes. Check out this tutorial if you are having trouble grasping this concept. This video will show you how to calculate the area of a triangle easily and in detail. Master this and you will pass that next test for sure!
In this video by Task Tutorial we learn how to create a simple text effect in Flash. The first step is to create the text you want to use. Then use CTRL-B to break apart and distribute to layers. Now, convert your letters into movie clips using the menu options. Then add key frames and edit Alpha values in all of the letters. Alpha must be 0. Then add motion to the values and at frame 10 add a key frame. And at frame 15 add another key frame. Next use the free transform tool to move the text ...
This math tutorial shows you using geometry how to find a central angle. The teaching tutorial shows you how each line and angle are used to determine the angles within the geometry problem so that you can figure out the answer to a question. The specific math problem is used for when you are given two diameters and an arc degree. This is a great explanation if you are struggling with any geometry related question or homework problem and would easily be used to help out as a refresher or to h...
Did you know that you can use a diamond stone to sharpen up your knives? Straight edge blades have a tendency to get dull unlike serrated knives. Diamond stones are better than the typical sharpeners because they can put a nice even edge on your blade and not leave burrs. After your knife is sharpened you can test it out on a piece of paper to see how well it is cut. Knives do need to be sharpened because the duller the knife the more likely you are to cut yourself.
Lowe's knows that riding lawnmowers are a big investment for your home and garden. This video shows the proper tools, and safety equipment needed to perform the maintenance needed. Lowe's explains how to replace the air filter on the mower, replacing and testing the spark plug, and how to lubricate the moving parts of the machine itself. The narrator also reminds viewers that when performing maintenance, to do so in a well-ventilated area. Following the steps in this video will make sure your...
This how to video describes how to download and install a free beta version of Microsoft Office. This video directs you to a Microsoft site that allows you to download the beta version of Office. The author warns you that this is the beta version of Office and that the software is still in the testing phase and is prone to many bugs and unknown problems and issues. This video is perfect for the penny pincher or those who want to be on the bleeding edge of technology.
This video walks you through mixing your own tattoo gray wash in ink caps. Taking black Element tattooing ink you use a test ink cap to get your 'drip' then once you make sure that the ink is coming out correctly you let the ink drip into five separate caps. Each new cap gets one more drop than the last so the first gets one drop, the second gets two drops, up until the fifth, which gets five drops. Then you take your gray wash and fill up the cap. You can mix the inks with a toothpick or you...
Change the sound on your PC in Windows Vista with this video tutorial. In Windows Vista, left click on desktop. Go to "Personal Modes" and select "Sounds". Click "Test" button in the Sound's tab window to hear sounds for different actions. To replace a sound: place the sounds, in a .WAV format only, in a folder on your C: Drive. Select sound to be replaced in Sound's tab and click “Browse” to find the file you are replacing the current one with. Click "Ok" when done to complete change.
Sometimes it's more than just inconvenient when your electronics lose power. Sometimes, losing power could be dangerous. Never worry about a dead cell phone again! Charge your portable electronics by harnessing the power of the sun.
Picture this: the infrared sensor on your TV is not working and you are blaming it on your remote control batteries. Well, to make sure exactly what is going on, try testing TV remote to be sure. To the naked eye, you might not be able to see the infrared light, so you could think it's dead, but try filming with your camera phone or digital camera, which could pick up the IR signal.
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 enable font anti-aliasing on Wine Ubuntu Linux.
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 Frozen Bubble 2 on Ubuntu Linux.
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Kip "Kipkay" Kedersha is known for his intriguing and clever how-to and prank videos, even when he teams up with MAKE Magazine. He will show you how to tweak, hack, mod, and bend any technology to your hacking needs. No electronic device, gadget, or household item can stand the test of Kipkay's hacks and mods.
Save that last slice of pizza! You can reheat it in its own container, using the sun's power. Turn a pizza box into a solar oven.
Take a break from watching your lava lamp, and have some freaky fun with phosphorescence. Inspired by the Instructables project: http://www.instructables.com/id/UV-Fun/
One day, your car may break down and you won't be able to afford to hire a mechanic, so what do you do... you look on the web for some how-to vehicle repair videos and become your own car mechanic, that's what. You don't need any advanced training to perform repairs and simple maintenance on your automobile, but you may need a few tools. Invest in the basic tools and you'll be prepared for just about any car malfunction you can think of. These tutorials will help get you on your way, as long ...
Are you a ... Windows Developer? Interested in ... testing the vulnerabilities inherent in your own operating system? If so, you're in luck. This video tutorial demonstrates a simple hack that will allow you to remove the Windows Genuine Advantage Validation software. For step-by-step instructions on removing the Windows XP Validation tool, watch this video guide.
Many wonderful things come from the workshop. However, it's hard to document this land of screws, sweat, and metal on the organized pages of a scrapbook. In this how-to video, Carmen pays tribute to her brother's workmanship and demonstrates how to create a page that tells a story of forged steel. So get out those photos of your favorite craftsman, some wire and a hammer and get ready to test your metal! Watch this video crafting tutorial and learn how to create a wrought iron rose scrapbook ...
Going to be a nurse? Then one important part of your nursing responsibilities involves doing a daily check of the code blue cart or crash cart. The crash cart is checked every shift for emergency items and function. In this how-to video we review the nurse’s responsibility to test the defibrillator oxygen tank, most hospitals change tanks at 500 or 1000 psi. Follow along an see how simple it is to do a daily check of the code blue cart.
These how-to videos provide an introduction and tutorial to LEGO Mindstorms NXT. Topics discussed are (1) what is included with the NXT robotics kit (2) how to build a simple NXT robot (3) programming an NXT robot and (4) testing an NXT robot. Watch this video tutorial series and learn how to build a simple robot with the Lego Mindstorms NXT kit.
In this video tutorial, you'll find a step-by-step guide to how a n00b hacker (like you?) can get usernames and passwords easily through one of the security flaws of the Ethernet ADSL router. More than half of Internet users never change their default password which makes this "hack" easy. Take your time to read the text on the slide. For more, and to get started testing the security of your own Ethernet ADSL router, watch this hacking how-to.
This video tutorial will show you how to take an old computer keyboard and use its circuitry as a physical computing input device. Once you have this device, you can then use it to interface with programs that you write using software such as pure data processing, MAX/MSP, and Ableton Live to name a few. What you are doing is replacing the switches within your keyboards with others for input devices. Make sure the interface is plugged in when you are testing but it's probably a good idea to u...
An important part of jewelry making involves properly setting gemstones. This how-to video tutorial demonstrates the proper way to set a stone in a cinch mount. Begin by placing the gemstone face side up in the casting. Use a pair of needle nose pliers to grasp the casting at the base of the bail. Gently squeeze the pliers to close the gap and tighten the casting around the stone. Test to ensure that the stone is properly set.
Backyard FX shows how to build a real lightsaber. Erik Beck unearths the original lightsaber blueprints from the special effects creator for Star Wars, and show you how to buy parts to a real lightsaber so you can have your own custom Star Wars weapon. In the test film you'll see our rotoscoping technique on how to complete the effect with some simple computer animation. You will need chrome plated slip joints, black vinyl rubber, a nylon slip joint, a rubber slip joint, rubber O rings, and m...
The Bloody Mary represents a drink where everybody is welcome to test out their creativity just a little to see what sorts of unique twists they can add to this long-time classic. Start with the basic recipe and then see where that leads you. For the classic recipe, you will need vodka, tomato juice, lemon juice, celery salt, Worcestershire sauce, black pepper, horse radish, and chili powder. Start experimenting with the bloody mary recipe and build off a classic by watchiing this video cockt...
NASA has invented the T-RAD Device, a.k.a. Goo Gun. Astronauts aboard the STS-120 will test the effectiveness of the pre-ceramic polymer in its ability to repair damaged shuttle tiles. To make connections to the mission, in this video tutorial, Dr. Diana teaches you how to make your own silly putty, also a polymer, at home.
Watch this three-part series on how to assemble battery cells for your radio controlled vehicle. First, see what is needed to assemble cells and to get them glued.
So you've been invited to a poker game, but you don't know the difference between a straight and a flush. Well, this how to video is here to make sure you don't lose all your money, or your shirt. This Texas Hod'em lesson teaches you how to determine the ranking for various hands. It runs through all possible winning hands in Texas Hold'em and explains their rank. At the end of the video you will be tested on your newly acquired knowledge of Texas Hold'em hands. Are you holding the nuts or ar...
The Tesla CD Turbine (the little turbine made from recycled CD's and magnets) is used as a magnetic test bed for this SinkScience experiment. Here, six 3/16 inch diameter neodymium ball magnets are placed in a plastic bowl above the CD Turbine.
This is the first live action run of the Tesla CD Turbine II with simple hi-speed CD Disc Pack. This particular model of the CD Turbine has no magnets, as well as no shafts, no bearings, no seals and no blades.
Patch and optimize Hellgate: London! Former PC Gamer editor-in-chief and hardcore Diablo fan, Greg "The Vede" Vederman, gives a step-by-step how to on getting optimal performance in Flagship Studios' action-RPG Hellgate: London.
When you try running Apache, Joomla, PHP and MySQL at the same time, you should expect a few hiccups. But there are ways to get them running smoothly and effortlessly together, and this video will outline the process of getting your Joomla Content Management system up and running correctly on Windows.
Watch to learn how to say the names of things that have to do with school, like books, paper airplanes, and soccer balls, in French.
Check out this video to learn a technique for attaching soft clay to soft clay. No scoring or slip is needed. By just applying firm pressure to get a good strong joint. The small clay coil is used to reinforce the joints, and the blending is to make sure both parts are joint securely. Finally give a little pull to the new piece of clay that was attached, to test how good the joints are. If it comes loose than you are not applying enough pressure in joining the two pieces together. Finally, if...
In this AeroCast episode, Anthony Bottini discusses the Power Off Stall maneuver as performed in the Piper Warrior (PA-28-161), referencing the procedures and standards outlined in the UND Aerospace Warrior Standardization Manual. All performance tolerances are based on the performance standards set forth by the FAA Private Pilot Practical Test Standards. Power Off Stall practice is vital in increasing a pilot’s proficiency in regards to stall recognition and stall recovery techniques during ...
