Essential Understand Search Results

How To: Deal with SN2 (biomolecular nucleophilic substitution) reactions in chemistry

In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to understand and work with SN2 reactions in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.

How To: Work with steric hindrance in organic chemistry

In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to use Markovnikov's rule to understand steric hindrance in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.

How To: Use Induction Cooktops

Induction cooktops are a great option if you're interested in heating food faster and saving energy in the process. They operate a bit differently than other cooktops and you should understand how so, if you plant to own one. This quick tutorial will show you how to use an induction cooktop easily.

How To: Know out what women carry in their purse

The purse. One of the biggest mysteries to man. In it, lies hidden treasures and things that no man can understand how it exactly fits in there. It's so mysterious that it can become maddening. So in this tutorial, you'll find out how to know what women carry in their purse. Good luck and enjoy!

How To: Learn to calculate percent error with this music video

Math, chemistry, physics can all be a very difficult thing to understand. But if you have the right teacher, then it can make life a bit easier. Maybe even a music video explaining it can be a bit easier. In this tutorial, if you're having a tough time with calculating the percent error, this music video may be what you need. So check it out and good luck!

How To: Create a vignette with curves easily

This tutorial is for those looking to get an understanding of Photoshop CS4. It's a beginner video and shows you the best way to create a vignette with curves easily. It's a great way to add a little something to your photos without making it look fake. So sit back and enjoy!

How To: Easily combine photos and text using Photoshop

Photoshop is all about being creative. The more you know, the better you become at mixing certain tricks and techniques to make amazing pieces of digital photography. But there are so many it can take a good chunk of your time to fully understand the power that Photoshop holds. In this tutorial, find out how to easily combine photos and text using this awesome piece of software. Enjoy!

How To: Find simple probabilities in Microsoft Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 51st installment in his "Excel Statistics" series of free video lessons, you'll learn how to understand, work with and find simple probabilities in Microsoft Office Excel.

How To: Write basic HTML and CSS

Whether you're using a fancy WYSIWYG (what-you-see-is-what-you-get) page editor like Adobe Dreamweaver CS5 or a barebones text editor like Notepad, if you want to build websites, you'll need to have some understanding of HTML (for the structure of your web pages) and CSS (for their style). And this free coder's guide will get you started along that path.

How To: Craft a Chinese hat with your kids

Teaching your kids or students about different cultures can be a big stepping stone in them understanding more about the world. A good way to do this is by using an easy arts and crafts project. This tutorial focuses on the Chinese and how to craft an easy hat. Enjoy!

How To: Graph a linear equation using slope-intercept form

Are you "just not a math person"? Hogwash. Everyone seems to think that at one point in their life. With a little practice and study, math will become more and more easy to understand. Start your journey towards become a "math person" with help from this video, which teaches how to graph a linear equation using slope-intercept form.

How To: Easily write a great thesis statement

Ahh, the thesis statement. Two words I haven't read or heard since I was in college. Two words that tortured me for a good year in high school. Anyway, this video tutorial gives you an understanding of what a thesis statement is and how to write a great one. Pay attention and good luck!

How To: Crop images in Adobe Photoshop for printing

Ready to bring your digital photographs into the world of tangible objects? Before you do, you'll need to understand a thing or two about aspect ratios and image cropping within Adobe Photoshop. Fortunately, this guide will tell you everything you need to know. For a complete overview, and to get started cropping your own images for printing, watch this free video guide.

How To: Remove and reinstall devices in Windows XP

The beyourownit shows you how to remove and reinstall devices in Windows XP. The first thing he shows what to do is Right click on the My Computer icon and select properties then select then choose the hardware TAB. When you click on the Device Manager button, the Device Manager will appear where you can make changes to your computer. The user explains more to help you understand better. If you watch this video, you will find out how to reinstall devices in Windows XP.

How To: Divide mixed numbers

In this easy to understand video, intuitive instructions are given on how to divide mixed numbers. This video will help you quickly learn a fast and easy method for simplifying and then dividing mixed numbers. If you have ever gotten confused when trying to learn about mixed number division, this video will walk you, step by step, through the best process. The video contains a voice over and visual demonstration of how to do an example mixed number division problem.

How To: Make mashed potatoes from a box

This video goes through the basic step by step process of preparing Betty Crocker instant potatoes. It shows all the ingredients you will need as well as all of the utensils. This video also provide additional information on alternative methods of heating, such as using a microwave. This is a very informational, step by step video of the preparation process of these potatoes, and would be very helpful for someone wanting to better understand the process of preparing this dish.

How To: Select the AF points with the Canon 40D

Watching this video will teach you a couple different ways to use the auto-focus function on your Canon 40D camera. You can set the auto-focus to the same for every shot, or you to change it for every shot very easily. Whichever one you choose, this video makes it easy to understand.

How To: Tie a bowtie with GQ

In this video you are instructed on how to tie a bowtie. The narrator gives you step by step instructions, making it easy for you to understand. He starts off explaining the first steps and guides you all the way through to the last steps. He even offers advice on making it look extra neat by spending a little more time at the end, getting a finer result.

How To: Subtract integers

Subtracting integers is easy to do after watching this video. In this math tutorial, the narrator explains and illustrates the process of subtracting integers. He explains the rules of converting the plus and minus signs to make addition and subtraction easier to understand. Following the steps explained in this video will make these math problems a breeze.

How To: Change mixed numbers to improper fractions

In this Math tutorial, you will learn how to convert a mixed number into an improper fraction. The narrator explains the process in a very concise yet simple manner that will make math problems involving mixed numbers so much easier to solve. The general idea is to multiply the whole number with the denominator and then add that to the numerator. The explanation and illustration in the video makes it easy to understand.

How To: Multiply decimal numbers

Multiplying decimals is made easy in this math tutorial. The narrator illustrates the process for multiplying decimal numbers in a very simple to understand fashion. You start by simply ignoring the decimals and multiplying the numbers as you normally would. The video shows you the rest of the steps to arrive at a number with the decimal in the right place.

How To: Understand positive, negative, zero & undefined slopes

This video explains how to find the sign of slope of a line. The way shown means that you can find whether it is positive or negative without knowing its equation. It uses a simple analogy so that anyone would be able to use this method, even without much math knowledge. Being able to find the slope of a line is very important, as it leads to advanced function and calculus.

How To: Calculate and solve for density

Density is a means of representing how much mass is contained in the body of an object. The basic formula is: Density (D) = Mass (M) / Volume (V) so D=M/V. Density is important to know for buoyancy and to understand how heavy an object is. This video will show you three examples of measuring density so you can learn and put it to good use.

How To: Understand Cavernous Sinus Thrombosis

From The Apprentice Doctor, a video regarding "Cavernous Sinus Thrombosis", which means a blood clot in the cavernous sinus. The cavernous sinus is in the base of the brain and contains several nerves, a vein and many other structures. The vein that sits in the Cavernous sinus carries deoxygenated blood from the brain & face and brings it back to the heart. This video shows how to spot Cavernous Sinus Thrombosis in a patient's protruding eyes.