How To: Add mixed numbers
A mixed number is just another way of expressing a fractional number. This video shows two methods by which two mixed numbers may be added.
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How To: Make clarified butter ghee
In this video Lori Winders shows us how to make ghee from regular butter. Her method takes about two hours to complete but she says that this way you can obtain much more ghee at one time. First, put two pounds of butter in a large cast iron skillet and then put it in the oven at a temperature of 250 degrees for two hours. After this is complete you take the pan out of the oven and with the help of a strainer and lots of layers of cheesecloth you filter the obtained gee in a jar. You will see...
How To: Analyze cheap sulfuric acid for concentration & purity
In this home scientist video the instructor Robert Bruce talks about cheap sulfuric acid. He says that sulfuric acid is very important in any lab both as a reagent and a precursor for preparing other chemicals. He points to the battery acid saying that it is a good source of sulfuric acid which is 35% concentrated. Now he shows various methods to obtained sulfuric acid and shows how to test one of the thus obtained sulfuric acid for its concentration. In this video the author talks about sulf...
How To: Graph by using an X-Y table
In this video the author shows how to graph using an X-Y table. He shows how to do this with a sample equation. He builds a table of x, y values where he takes sample values for x like -1, 0, 1 and now he substitutes these values in the equation of the line and obtains the corresponding y values. Now finally he has an x, y value table which now he shows how to plot it on a coordinate plane. He plots all the three pairs on the graph and connects them with a line finally obtaining the resultant...
How To: Find percent
Finding the percent of a given value is made simple and easy in this math tutorial video. In step one you must divide the part or the portion by the whole. As a result we obtain a decimal number. In step two, we must then move the decimal point two places to the right in order to convert the number into a percent value. This brief video tutorial illustrates the process in these two steps and makes it simple for anyone to be able to obtain a percent value for a portion of a whole.
News: This AR Headset Surpasses the Field of View of HoloLens, but You Still Won't Wear It in Public
Digital imaging company OmniVision Technologies and the Hong Kong Applied Science and Technology Research Institute Company Limited (ASTRI) entered the CES fray this week with a new reference design for an augmented reality headset capable of 60 degrees field of view (FoV).
How to Meterpreter: Obtaining User Credentials with PowerShell
In this article I will show you how to obtain victim's credentials without cracking any hashes. There are a couple of ways to perform this task (for example dumping the SAM file and cracking the NTLM hashes), but here I will explain how to do it using PowerShell and a bit of social engineering. We are going to create a fake login popup.
How To: Cook spanakopita (Greek spinach and feta cheese pie)
Spinach and pie aren't two words you'd usually see in the same sentence, but they sure are when you're referencing Greek cuisine. Spanakopita, or Greek spinach pie, is almost a dessert in the way it's constructed, with thin sheets of pastray wrapped around spinach and other ingredients.
How To: Create a calendar appointment using drag and drop in Outlook
You can drag and drop an email onto your Calendar icon in Microsoft Outlook, which then immediately gives you the option of setting up a new calendar entry. You can even color code your various events for easy reference later!
How To: Model trim in 3D Studio Max
This clip provides a quick reference on how to create realistic trim quickly using splines and editable polys. Whether you're new to Autodesk's popular modeling software or a seasoned 3D artist just looking to better acquaint yourself with the application, you're sure to be well served by this video tutorial. For more information, and to get started modeling realistic trim in your own 3ds Max projects, take a look!
How To: Calibrate your jointer
You will to learn set up and calibrate your jointer for optimal woodworking and creating a clean and straight edge on a rough board to later use as a reference. You will also learn a system on how to set up your knives to achieve the perfect cut using a jig and how to select the best jig to work with.
How To: Play "Sweater Song" by Weezer on electric guitar
Marty Schwartz leads you through the basic chords for Weezer's Sweater Song. If you are looking to learn how to play the electric guitar, he gives a simple, easy, effective lesson that anyone can follow. The tips are shown visually, making the lesson easy to comprehend. He goes on to play the chords taught during the lesson, giving an audio reference to how your playing should sound, something I found to be very helpful.
How To: Print your own photos from iPhoto
With a photo printer and photo-quality paper, you can create high quality prints of your photos. Using iPhoto, you can print a single image, multiple images, an album, or a reference page of thumbnails called a contact sheet.
How To: Obtain the secret Havel Armor in Dark Souls
The unique Havel Armor in Dark Souls is well hidden, but if you follow these steps from Giant Bomb, you should be able to find the different pieces of the Havel Armor including Havel's Leggings, Havel's Gauntlets, Havel's Greatshield, and a Dragon Tooth.
How To: Obtain a rocket launcher in Detroit while playing Deus Ex: Human Revolution
Did you know that in Deus Ex: Human Revolution there's a hidden rocket launcher hidden in Derelict Row? While there are many different panths into the area, this Game Front video presents you with a simple one that will allow you to find and use a rocket launcher to your heart's content.
How To: Earn the 'Ladies Man' achievement in Deus Ex: Human Revolution
If you're playing Deus Ex: Human Revolution on the Xbox 360, you can unlock the 'Ladies Man' achievement during the Corporate Warfare side quest. You will need to have the social enhancer augmentation to obtain the achievement. This guide will help you sweet talk the woman character until she provides you with the information you need.
How To: Obtain the 'Mule Kick' perk in Call of Duty: Black Ops Rezurrection on Moon
Once you're at the power switch, it's a short path to the machine that allows you to purchase the 'Mule Kick' perk needed for achievements and more. This perk will allow you to carry more than two weapons at a time. Take a look at this guide from Game Front to learn where to go to get the perk in Call of Duty: Black Ops Rezurrection DLC on Moon.
How To: Factor differences of squares
A video that demonstrates one of the basic techniques involved in factorizing an equation that contains the difference of two terms which are also perfect squares themselves and are equated to 0.
How To: Digitally sign and encrypt your email messages
The only people who should read your emails are you and your intended recipients. Protect your privacy with this simple crytography guide, which shows how to obtain a free certificate for signing and encrypting email messages, how to download and install the certificate on Mac OS X 10.5, and how to use the newly installed certificate in Apple Mail.
How To: Solve a 3x3 linear system using Cramer's Rule
In this video the instructor shows how to solve a 3 x 3 linear system using the Cramer's rule. In this kind of problem you are given three equations in three variables x, y, z and you need to solve for the values of these equations. You can solve this using the Cramer rule which says that the value of x is Dx/D, where Dx and D are two different determinate. Now you have to figure out the determinate to get the value of variable x. The determinate D is called the foundation determinate and is ...
How To: Factor a trinomial, GCF, then unfoil
In this video the instructor shows how to factor a polynomial. A polynomial having three terms is called as trinomial. Now if you factor it you will obtain two binomials whose product will be the original polynomial. Before factoring a polynomial you need to find out if the polynomial has a GCF. Look out for the common variables in all the three terms and pull them out which is the GCF of the polynomial. This simplifies the original equation to a polynomial which is of lower degree. Now facto...
How To: Convert temperature using y = mx + b
In this video the instructor shows how to do temperature conversions using y = m*x + b. Now if Celsius is represented by the variable C and Fahrenheit is represented by the symbol F, you can replace then in the previous equation in place of the variables x and y giving you the equation C = m*F + b. Now to solve for the values of the constants m and b you need to have values of two sample temperatures in both Celsius and Fahrenheit. Take the first sample and substitute in the above equation gi...
How To: Factor a trinomial with negative leading coefficient
In this video the instructor shows how to factor a trinomial with negative leading coefficient. Most of the students are confused when they have to factor a trinomial with a negative leading coefficient. But there are many ways to solve these kind of problems as shown in this video. One way you can do is that take out the greatest common factor (GCF) of -1 from the equation. So pulling the -1 gives you the original trinomial with all the signs of the terms changed. Now go on and factor the ne...
How To: Solve a quadratic equation
In this video the instructor shows how to solve a quadratic equation. If you have a quadratic equation with complex fractional terms and you find that a particular term is repeating then equate that term to a new variable and replace the variable in the given equation. Now try to get the equation a*x*x + b*x + c = 0, and solve for the roots of the equation which gives the values of the intermediate variable. But this variable was replaced instead of another term. So equate that term to the va...
How To: Identify the rear axle on a Jeep Cherokee
Richpin's Auto Repair shows you how to properly identify the rear axle of a Jeep Grand Cherokee. This information will allow you to obtain the correct information for replacing this specific automobile part. The video will show you where you need to look beneath the vehicle to find out which style of rear axle your Jeep Grand Cherokee has. You'll be shown where to clean the dirt off of a specific area of the axle to obtain this important information. In this particular case, the rear end axle...
How To: Factor a trinomial by GCF then grouping
In this tutorial the instructor shows how to factor a trinomial with Greatest Common Factor (GCF) and then how to group it. The first thing you have to do when you want to factor a trinomial is look for the GCF. First factor the numerical coefficients of the terms of the equation. Now separate out the common numerical factor and if any common variable. This leaves you with a binomial to be factored. Now to solve this multiply the numerical coefficients of the first term and the last term and ...
How To: Simplify a quadratic formula result
In this video the tutor shows how to simplify a quadratic formula result. You can solve a quadratic equation using the quadratic formula. The first thing you have to do when given the quadratic equation is bring all the terms to one side so that you have a zero on the other side of the equals to sign. Now the formula to calculate the roots of the quadratic equation ax*x + bx + c = 0 is x = (-b + root of(b*b - 4*a*c) ) / 2 * a. The other root can be obtained by using the minus sign before the ...
How To: Install VMware and Windows XP in Ubuntu
Software expert David Steinlage guides the viewer through the step-by-step process of installing VMware and Windows XP on a computer driven by Ubuntu Linux. The first step is to get a serial number, which can be obtained free by visiting the site www.vmware.com and filling out the registration form. The VMware installer application Automatix is then opened and upon clicking the desired options, the installation of VMware starts automatically. At the end of installation, the user is prompted t...
How To: Derive the equation of a straight line
In this tutorial the instructor shows how to derive a straight line equation. He shows us a process that consists of two steps. In step one he uses the slope formula to obtain the slope of the line which is the ratio of difference of y-coordinates and difference of x-coordinates. Now in the step two he uses the slope he obtained in the first step and equates it two a another slope derivation which uses a generic x, y variables and a real point. Now solving this equation he arrives at the equa...
How To: Draw a simple scenery
In this video, we learn how to draw a simple scenery. Start by drawing a horizontal line across the page. From here, draw reference boxes along the middle of the line. Now you can start filling in more details, making buildings out of the boxes. After this, make people outside of the buildings, then make a street and trees in the background. Fill in shading and lines to make the picture more realistic. The key to this is to learn how to start with your reference point to make everything flow ...
How To: Perform a vertical mattress suture on a patient
The vertical mattress suture is one of the most common stitches used in Western medicine. this video features a demonstration of a vertical mattress suture on a big legs. This video will make a handy reference for any medical, veterinary, or nursing student looking to improve their suturing techniques.
How To: Fix common Excel spreadsheet problems & errors
Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you're in the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 25th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to interpret and resolve the nine most common Excel formula errors — namely, ####, #NAME?, #N/A, #REF!, #VALUE!, #NUM!, #DIV/0!, Circular Reference, and #NULL!.
How To: Meditate to relax with Tara Stiles
Here are some meditation tips from Tara Stiles. Tara Stiles is a revered Ford Models yoga instructor. Meditation is a mental discipline by which one attempts to get beyond the conditioned, "thinking" mind into a deeper state of relaxation or awareness. Meditation often involves turning attention to a single point of reference. It is recognized as a component of almost all religions, and has been practiced for over 5,000 years.
How To: Set up image planes in Maya
If you plan to do a lot of modeling in Maya, you will find it is easier if you set up reference images on image planes. This tutorial shows you how to create and set up image planes in Maya.
How To: Crochet a neckline
Get an awesome tutorial from Cal of Hodge Podge clothing. This will teach you how to crochet a neckline. (Yes, it's a little complicated and you may want to reference another crochet video for pointers).
How To: Samsung's Oreo Beta Just Went Live — Here's How to Get It
After multiple leaked references in Samsung apps, the Oreo Beta Program for the Galaxy S8 and S8+ is official. Yesterday, we posted a full changelog from users that obtained the beta a day early. The update brings many new features from Oreo to the S8, including notification channels and autofill API support. If you're quick, you can enroll your Galaxy S8 in the beta today.
How To: Security-Oriented C Tutorial 0x19 - Functions Part V: Passing by Reference
Hello there! This will probably be the final tutorial on functions where we will be looking over a method called pass by reference. This technique allows us to modify large amounts of data without the overhead and return multiple values. Let's go!
How To: Find the Sword of the Masters Easter egg in the game Magicka
A reference to the Legend of Zelda, this Easter Egg can be found when playing the game Magicka. It's somewhat well hidden - this video shows you precisely where in the game it's located, so you can go get it for yourself.
How To: Turn a CAD blueprint into a Google Sketchup project
Use a CAD plan as a reference for your Google SketchUp project. This tutorial shows you how to use the rectangle tool to create building walls and outline your building for SketchUp. Use the eraser tool afterwards so you can erase unneeded lines.
How To: Edit your StarCraft II user interface to change how the camera angle works
If you want the mouse pointer in StarCraft II to act more like the pointer from Diablo, here's a tutorial which explains how to alter your user interface in the game to create this mod. You'll start by going into the game's map editor and then distributing invisible drones throughout the map to give your cursor a plethora of reference points.