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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: Remove tattoos from pictures using Photoshop CS4

In this how-to video, you will learn how to remove tattoos using Photoshop. First, open the image in Photoshop. The patch tool is the easiest for removing these type of tattoos. If the tattoo is very ornate and complicated, it will take longer to remove. First, select the patch tool, which looks like a band-aid. Hold it down and select patch tool. Zoom in on the tattoo and draw a selection around it. Once it is selected, click the left mouse and hold it down. Drag the selection to an area sim...

How To: Make agua de pina

Jevon's third video teaches how to make agua de piña a traditional Mexican drink which is much healthier than Kool-Aid or soda. To make the base, he starts with sugar, water, and pineapple. The pineapple is chopped into 1 inch pieces and put in a large bowl with sugar and water. Then he uses an immersion blender to chop up the pineapple further. Blending the mixture takes quite a bit of time as the pineapple should be shredded quite small. When the blending is complete, the mixture is straine...

How To: Make catfish bait at home

Use this simple recipe to catch great catfish, and make it all from the comforts of your own home! First what you need is an old butter dish to mix in, as well as an old spoon. Cornmeal, flour, old cheese, kool-aid for flavor, garlic powder, tuna, and water are the simple ingredients you need for this wonderful recipe. Mix all of these ingredients together until the mixture is nice and thick. Next place the mix into the microwave and cook it for about one minute. After it is heated up, place ...

How To: Style your hair into a faux hawk

First you need to get some palm aid hair gel and rub it through your hair. Using a flat iron you use it where ever you want to start with your hair. While using the flat iron get a comb and brush your hair while you follow your flat iron. Using your flat iron move it upwards to get the style you like it. To get you hair to stand strait up you have to angle the flat iron away from your head to get that look. The hairspray helps to any parts in you hair that are not standing up. Then you just p...

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: Do inexpensive projects with kids

This video shows some fun, inexpensive projects you can try for kids. There are several different crafts presented, beginning with Flubber, or Silly Putty. Mixing some glue, water and Borax in a bowl makes the same stuff you can buy in the store. The next craft is Crazy Crayons, where you gather old crayons together and heat them in an oven to make new, colorful creations. Then comes Spiffy-Sniffy Watercolor Paints, where we find out you can just mix water and Kool-Aid powder to make bright w...

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: Make a box using a square piece of paper

Mind you now, that using a normal rectangular piece will not give you the desired results. You must use a square piece of any size. Start by making two diagonal folds for each corner to corner cross section. Now do two hot dog folds, like wise, then take each corner and fold it into the middle so it resembles triangular tabs. Now take these tabs and once again fold them in half but up to the outside of the paper, resembling another triangle. Fold Over, and do as shown in the video for the bes...

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: Repair a dryer by replacing the support rollers

The drum support rollers are usually in the same spot on every dryer, no matter the brand. They will be below the drum. In order to remove the rollers, you need to open the dryer's cabinet and remove the drum. Perhaps you will notice that the left roller is more worn out than the right one. This is a common occurrence, but you need to replace both at the same time. Be sure to remove the nut before you remove the roller. Don't use more than one drop of oil on the hub as too much oil will aid t...

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: Determine if someone's lying via Visual Accessing Cues

This video demonstrates how you can tell if someone is lying using visual accessing cues. This is a sample video of Kelley Moore teaching for a breakthrough collaborative application. She uses basic psychology terms to aid in understanding when someone lies. A sample visual cue for lying is to notice the eyes. If someone is lying, their eyes would twitch or unconsciously shift to the left side. If you follow the steps in this video, you'll be able to notice when someone is lying to you.

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: Apply vampire makeup for your hands

The video shows the user how to make their hands resemble those of a vampire. This is done by applying a thin layer of white makeup to the backs of the hand with a cylindrical sponge. The reason for only applying the makeup to the backs of the hands is to avoid coating surfaces you touch with the white makeup. It's suggested that you leave a gap between the makeup and the sleeves of your jacket as it does not spoil the effect and helps eliminate the likelihood that you'll get makeup over your...

How To: Apply beautiful fairy makeup for Halloween

This how-to video shows a way to create a pretty fairy look to use as part of a Halloween costume. The demonstrator used these cosmetics: Mac Studio Fix Fluid Foundation, Makeup Forever HD Powder, Mac Emote Blush, Airbrush Stencils, 88 Shimmer Palette, Flat Head Stippling Brush, Ben Nye Final Seal, Benefit Lemon-aid, 88 Shimmer Palette, Mac Uppity Fluidline, Mac Blacktrack Fluidline, Urban Decay 24/7 Eyeliner in "Zero," Ardell Enchanting Lashes, Duo Lash Adhesive, NYX Lipliner in "Rose," and ...

How To: Massage groin strains

Groin strains are painful and can take a long time to heal. However a few massage techniques can help aid in the recovery of groin strains. Get expert tips and advice on massage and other treatments in this how-to video.

How To: Use ascenders for rock climbing

Ascenders are one of the types of equipment used in aid climbing. Ascenders allow the climber to maintain his progress when taking a break. Learn how to use ascenders in this climbing video tutorial. Take action: consult your local store, attach with carabineer, and use teeth to create gripping friction. Josh, the instructor in this how-to video from Live Strong, is an avid climber that resides off the coast in central California. He has managed for a mountaineering sports company for several...

How To: Pack for a hiking trip

Packing for a hiking trip is easy with these tips. Get advice on backpacking, hiking, and the great outdoors in this video tutorial. Take Action: pack heavy items at the bottom, bring extra water, and include a first-aid kit in your pack. John Flaherty, the instructor in this how-to video, has a great love for the outdoors. In 2003, John and his wife started Central Coast Outdoors in northern California. His company provides hiking, kayaking, and biking services for those wanting to be closer...

How To: Build high production spirals

Check out this instructional science video that demonstrates how to make high production spirals. Since for many people it is much easier to buy 1/12 of an inch 316 L Stainless Steel welding wire or a 1/8 of an inch wire (instead of plates or tubes), then for those of you who do not have the practical skills this video might just be a little hint and a aid on how to proceed. There are so many details needed involved in order to make it simple and replicable. Learn how to build production spir...

How To: Treat runner's nipple

Runner's nipple is caused by shirt fabric rubbing against the tips of the nipples. Learn how to prevent getting runner's nipple and stay fit in this sports medicine how to video. All you need to prevent runner's nipple is band-aids or petroleum jelly. Watch and see how simple it is to take care of.

How To: Implement tracing in an ASP.Net website

In this video tutorial, Chris Pels will show you how to implement tracing in an ASP.NET web site to monitor or measure the performance and to diagnose errors. Learn how to add tracing to an entire web site as well as individual pages. See how to add custom trace messages in pages and business objects to aid in assessing site performance and in diagnosing errors. Learn the differences between tracing in an ASP.NET page and in using System.Diagnostics.Trace for tracing information in business o...

How To: Create moving objects in PowerPoint

Let's face it: Powerpoint presentations are boring. For the most part, you use them as a lecture aid for science class or to give a presentation at work about market trends. Okay, we're making ourselves tired already. Point is, there's really not much going on with Powerpoint presentations, so make your next one as painless as possible by adding some cute animated clips.

How To: Treat a child's cut, scrape, or bruise

Kids will be kids, which means they'll always be getting into trouble and they'll always be getting hurt. But that's just a part of growing up. Don't worry about preventing these mishaps, just be prepared for when they happen. Children are so active that there’s always a chance they will get cuts, scrapes and bruises. Stay calm and follow these tips to get your child back on their feet.

How To: Sell stuff at a flea market

Selling stuff at the local flea market sounds easy enough, but it isn't anything like having a yard sale. There's a lot more to it that just getting rid of your junk, and the biggest things are being licensed and having a sales tax number. Flea market vendor may not be your first career choice but, like many, you may find it’s a lucrative full-time job or a profitable and fun sideline.

How To: Find the equation of a line easily

This is the video about how to Find the equation of a line. The equation of a line with a defined slope m can also be written as follows: y = mx + b where m is the slope of the line and b is the y intercept of the graph of the line. The above form is called the slope intercept form of a line. Step1 Set m to a fixed value (m = 1) and change b (b = 1, 2, 3, 4, -1, -2, -3, -4). Compare each value of b to the y-intercept of the line obtained. Step2 Set b to a fixed value (b = 1) and change m (m =...

How To: Use creative mode in Minecraft 1.8 to build a world

So you've just installed Minecraft 1.8 on your computer, and you're trying to figure out how to use the cooler options of creative mode. Where do you start? This guide will show you how to destroy blocks, create buildings with blocks, manage your inventory, obtain unlimited blocks, and use fly in creative mode while playing Minecraft 1.8.

How To: Find the slope's unit of measure

This educational video from free math tutoring shows how to calculate the slope of a line and assign units to the answer obtained. This video assumes that the viewer is familiar with the concepts of axes and co-ordinate geometry. The narrator uses a commonly used formula to calculate the slope of the line in the first section of the video. In the second section, the narrator demonstrates how to assign units to the answer, as per the question asked.