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How To: Make the repulsor arm prop from Iron Man

Iron Man, and to a lesser extent it's sequel, represent the best of the new comic-book-movie boom and have rejuvenated the popularity of one of Marvel's most interesting characters. Do you want to make a Tony Stark costume, or dress someone you know in one for a film or party? This video will show you how to make one of the coolest and most important parts of the Iron Man ensemble: the repulsor arm ray gun.

How To: Use differential equations to represent growth

This video shows the method to use differential equations to represent growth. Consider the function y=multiple of C & e raised to kx or Ce^(kx). Differentiating it with respect to x, we get dy/dx=kCe^(kx) or ky. So, the solution of the differential equation dy/dx=ky is Ce^(kx). There are two possibilities in the function y=e^(kx). It can be exponentially growth or decay function. This depends on the value of k. If k is greater than 0 or k>0, we get an exponential growth function. On the othe...

How To: Create a simple "less is more" flower arrangement

Flower arrangements bring color, life and mood to everyday life or a special occasion and the best part is you can make these bouquets yourself. The flower god will show you some of the ideas and an example using sunflowers for balanced table centerpieces. You will want to choose a main flower and several supporting pieces of foliage and flowers to increase depth and interest to your spread. The meaning concept is balance and accent. This video shows a minimalist, three vase approach for a ch...

How To: Describe chemical formulas

This is a video tutorial in the Education category where you are going to learn how to describe chemical formulas. A chemical formula represents the actual number of atoms of each element within a molecule. Different visual representations of molecules include the ball and stick three dimensional model, a line drawing that represents the structure in two dimensional terms, and a shorthand used by organic chemists. If a molecule has 4 green atoms and 2 orange atoms, the ratio of green to orang...

How To: Derive and use the slope formula

In this video, we learn how to derive and use the slop formula. The slope of a line is equal to change in y divided by the change in x. First, put the first point on the coordinate point. Then, represent the X and Y by X1 and Y1. Then, put the second point on the plane, representing the coordinates with X2 and Y2. Now, with these two points, draw a straight line and derive the formula from here. The change in X will be from X1 to X2. Now, replace that with the change in X and do the same for ...

How To: Equip your golf bag in World Golf Tour

In this video tutorial, viewers learn how to equip their golf bag in World Golf Tour. Begin by visiting the World Golf Tour website and enter the main menu. Then click on My Settings and select My clubs. Here, users are able to select a club that they want to play with for the next round. The upper blue section represents the clubs that are currently in your bag. The lower section represents all the clubs that you own, sorted by type. When finished editing and customize your club selection, c...

How To: Draw a cartoon dresser

In this video tutorial, viewers learn how to draw a dresser. Begin by drawing a vertical rectangle to represent the font panel. Then add a long rectangle on one side to represent the side panel. Now add 4 pairs of legs under the dresser and add leg supports by drawing an arch between each 2 legs. For the drawers, draw 4 long horizontal rectangles on the front panel and add some doorknobs on each drawer. Finish by adding any extra detail. This video will benefit those viewers who enjoy drawing...

How To: Draw a fantasy unicorn

This video illustrates how to draw a fantasy unicorn. Here are the following steps: Step 1: First of all take a sheet of paper and pencil and start drawing the head in a cone shape with the cone having round edge ,this cone represents the head.

How To: Draw manga characters

This video illustrate us how to draw manga characters.Here are the following steps:Step 1:Take a sheet of paper and pencilStep 2:Start by drawing a circle ,this will represent the face of the manga. now draw the eyes ,nose lips of the character with sharp lines to represent action on the face.Step 3: Now draw the middle part of the body and it should be in perfect shape.Step 4: Now draw hands of the character with waves on the hands to show masculine look.Step 5: Now draw the feet and legs.St...

How To: Use math reflections in pre-Algebra

The tutorial is part of a full lesson of pre algebra. This video teaches you what reflection is as a mathematical term. In the beginning of the video, the video maker draws 4 shapes labeled MNOPQ, ABCDE, FGHIJ and RSTUV. The first question in the video asks to "Name the figure that represents a reflection of ABCDE over the X-axis." The woman in the video repeats the question, stating the horizontal line is the X-axis and asks for the reflection image. She puts her hand on ABCDE and flips her ...

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: Understand guitar tabs

Essortment teaches you how to understand guitar tabs. There are six lines that represent a string: E, A, D, G, B and E. Numbers are written on the strings representing fret tabs that tell you where to fret on each string. Also learn how to read a cord which is all the numbers placed at the same time. Numbers on top of each other is a string and lined up means to strum. These are the basics to reading a guitar tab so when you see a tab you are able to play and understand.

How To: Draw the human neck

Figure drawing is the basis of fine arts education, so watch this how to video on drawing the human neck. To draw the human neck, pay attention to the muscles and bones that represent its shape. Draw an anatomical human neck with tips from a professional illustrator in this free instructional video on drawing.

How To: Teach your children to multiply early

The gentleman, acting as the Instructor, starts the session immediately by suggesting that to teach early multiplication all parents should practice a method of "Count-by's" with their children when they are very young using ones to ten, twos to twenty, threes to thirty, fours to forty, and so forth. The Instructor then demonstrates this method of counting by tens using a grid behind him on a chalkboard which depicts columns of ten elements. He counts each column from 10 to 100, and then writ...

How To: Make raw veggie burgers in a dehydrator

Raw dishes often entail food that is unprocessed and uncooked. This how-to video will show you great raw recipes to make at home in a dehydrator. Watch and learn how to prepare a raw veggie burger. All you need for this burger recipe is: sunflower seeds, flax seeds, celery, red bell peppers, salt, oregano, water and onion.

How To: Draw trees using a charcoal pencil

A pine tree is an excellent addition to landscape renderings. This video demonstrates how to draw stylized pine trees using a basic charcoal pencil. First start with the frame or trunk of the tree, then add slight branches. Using your charcoal pencil, shade in the branches with careful strokes to represent pine needles.

How To: Use FileField and jQuery Media modules to host video

Here's a fast lesson in hosting video on your own Drupal website using the FileField and jQuery Media modules. The Filefield and jQuery Media modules are a one-two knock out combination for allowing users to upload media files to fields in your custom content types and then playing back the media files in their matching player or handler. It represents a positive direction for treating fields containing files and is a great starting point for researching your own implementation of this recipe.

How To: Fake UFO photographs

The best evidence that UFOs represent spacecraft from other worlds consists of grainy photographs, blurry videos, and anecdotes about things that go bump in the night. In this episode Michael Shermer shows how easy it is to fake UFO photographs, enlisting the help of children and disposable cameras to create convincing photographic evidence that even fooled experts!