Performance Ratio Search Results

How To: End shutter lag, improve WiFi performance and more

Find which airlines Google is providing free Wi-Fi on this holiday season, fix shutter lag on digital cameras, wipe your hard drive for free, improve your Wi-Fi router performance, adjust your television and monitor for accuracy, choose the best 1080p projector, use a single server that can handle OS X, Windows & Linux simultaneously, and use the best audio encoding system for Windows Media Center and Zune.

How To: Increase the range of a USB Bluetooth adapter with a high performance antenna

Watch this amazing USB Bluetooth adapter hack from Kipkay. It's easy and effective, plus it will work with other wireless devices, too. Bluetooth works on a 2.4GHz short wavelength radio frequency, but it's only effective over short distances. Well, Kipkay's going to show you how to increase the range by swapping out the antenna in the bluetooth adapter with a HyperGain 2.4GHz high performance antenna.

How To: Use HipHop for PHP to improve website performance

HipHop for PHP is a source code transformer that allows you to optimize your PHP code easily, which will allow you website to run faster on less server space. This video is a record of a seminar on using HipHop done by a Facebook employee who had a hand in it's development. If you make websites using PHP, this will be very good stuff for you to learn.

How To: Rotate a video clip using iMovie HD

This video shows us the method to rotate a video clip using iMovie HD. Go to iMoviePlugins and download Turn Clip from it. Also make sure you have iMovie HD installed. Now add the video clip to the timeline. Go to the editing tab and choose Video FX and CFX enhancements. Choose Turn Clip from the resulting window. Now set the rotation angle. This can be configured to 90 degrees or 180 degrees. Click on 'Apply' and the software will render the rotation on the timeline. When everything is done,...

How To: Improve your system performance

Matthew demonstrates how to improve the performance of your computer without using new software. To improve your system performance by 15% to 20%, first open up your start menu. Right click on the computer option. Choose the properties option from the right click menu. In the properties menu, click on advanced systems settings on the left hand side of the window. In the system window, choose the advanced tab. Next, under performance click on the settings button. Next, toggle the adjust for be...

How To: Edit HV20 HV30 video in Movie Studio or Vegas

First you need to do is to open up the HD video file of Canon HV20 and then you can set the project properties. So go to file, import, media and open up the video file. Now drag it to the timeline and go to file, properties, click on the file folder called "match media settings" and open the same video file which you just opened. Now click on apply and then ok. But now video proportion is not fine. To fix it go to option, preferences, click on video tab and check the box which says "simulate ...

How To: Create a style for tall and petite women

For all you women out there who do not fall into the normal categories, Anna Saccone offers some styling tips for both tall and petite women. For petite women, Anna suggests that you should wear just one color in order to elongate your body and fool people into thinking that you are taller. If it is not possible to wear simply one color, it is suggested that you have a 2 to 1 ratio of color in your outfit and that the colors do not clash too much, as this will seem to cut your body in half, e...

How To: Find the length of a side of a triangle using sine

In this video tutorial, viewers learn how to find the length of a triangle using sine. This task is very easy, fast and simple to do. This formula can only be done on right triangles. Begin by finding the angle first and figure which trigonometric ratio to use. Then find which sides are given. For sine, users need to divide the opposite and hypotenuse of the triangle. Then cross multiply it with the sin degree to find the length of the triangle. This video will benefit those viewers who are s...

How To: Use the Scale Node in the Blender 2.5 Compositor

In this tutorial, you'll see how to use the Scale Node in the Blender Compositor to manipulate an image. You'll see how to stretch it, spin/rotate, and have all sorts of fun with uniform linear distortion. The clip discusses the difference between resolution handling between the renderer and the node system. Hence we have the scale node to scale an input image at one resolution to match the render resolution. I discuss using Absolute scaling, and relative/percentage scaling, relative aspect r...

How To: Rip a DVD movie with Handbrake

In this video tutorial, viewers learn how to rip a DVD with the program, Handbrake. Begin by opening the video in the program by clicking on Source and locating the DVD drive. Handbrake will start scanning the all the titles of the DVD. When finished, it will automatically select the correct title for the movie. Under Destination, click on Browse to select your saving destination. You are also able to change the name of the file. Now select the video format and aspect ratio. When finished, cl...

How To: Make concrete moulds and ornaments

The Concrete Jungle guide to making concrete moulds and ornaments as a hobby or business is presented here. This is a short excerpt of a longer film. Mixing the concrete is presented. It is important to get the correct consistency to make the ornament successfully. Other features include the ingredients used and the filling of the latex mould and removing the mould. The mixing ratio for the cement is 4 parts gravel (6-10mm), 2 parts coarse sand, 1 part cement and water. The consistency should...

How To: Divide exponents with the quotient rule

Exponent of a number is nothing but the number multiplied to it self the exponent number of times. So five squared it equal to five multiplied to it self. Now when an exponential number is divided with another such number the result is the number raised to the different of the exponents. That is the ratio of x raised by a to x raised by b is x raised to (a-b). Similarly if we multiply a exponential number with other such number, the result is equal to that number raised to the sum of exponent...

How To: Find the equation of a line in point-slope form

When you are given a point through which a line passes and the slope of that line, you can calculate the equation of that line. The general equation to solve this kind of equations is called as point-slope form. The point slope of a line passing through (a, b) with slope of m is (y - b) = m * (x - a). Now substituting the values in the above equation you can obtain the equation of the line in terms of x and y. In case you are given with two points first find the slope of the line which is the...

How To: Make delicious kettle corn

This video demonstrates how to make Kettle Corn. For this recipe, you will need the following ingredients: oil, popcorn, salt, and sugar. To make this you will need a stirring utensil and a kettle, because a kettle is able to hold more heat and transfer more heat to the popcorn. You should use twice as much popcorn as sugar in the recipe: a 2 to 1 ratio of popcorn to sugar. Pour popcorn into the kettle. Add oil. You will need to wear protective gear, when you cook it. Stir it frequently. The ...

How To: Simplify expressions involving algebraic radicals

In this video tutorial, viewers learn how to simplify expressions involving algebraic ratios. In some ways, simplifying algebraic radicals is easier than numeric radicals. When we are working with square roots, we need to find the highest even power of a variable to act as out perfect square. When working with cube roots, we look for the highest multiple of 3 as an exponent for our perfect square. This video is very descriptive and clearly explains all the functions of the formula. This video...

How To: Make HD/1080p videos for YouTube in Camtasia

This video lesson will show you how to make HD/1080p videos for YouTube in Camtasia. The simplest way to make this is to record your video in 1920x1080 resolution and render it in that setting. That’s all that you need to do. But, if you have a smaller screen resolution and can’t get 1080p, you can use Camtasia Studio to convert it to 1080p. first add your media to the timeline and change the width to 1920 and the height to 1080 click OK and then close the box. In the preview, you will see th...

How To: Find the slope of a line given 2 points

In this video the instructor shows how to find the slope of a line given two points that like on the line. Slope of a line is the measure of the steepness of the line compared to the angle made by the line with the x-axes. A line with positive slope slants forwards and a line with a negative slope slants backwards and a line parallel to x axes has zero slope. So if you are given two points (x1, y1) and (x2, y2), the slope of the line passing through those two points is equal to m = (y2 - y1)/...

How To: Make HD videos in Windows Movie Maker

Windows Movie Maker can be used to make HD movies. This step by step clip shows you how. The first step is to import your picture or video and make sure they're in your timeline. When you've finished editing, go to tools and options and choose the advanced tab. In video properties there's video format and aspect ratio. Select NTSC and 16:9. If you're using a cell phone or video camera, you'll be using 4:3 which is pretty small for YouTube and similar sites in order to get full screen. Save th...

How To: Algebraically solve mixed quantities problems

In this video the instructor shows how to solve mixture problems using two variables. Usually in these kind of questions the problem statement goes like, if A costs $x for a pound and B costs $y for a pound, in what ratio should they be mixed such that one pound of the new mixture sells for $z a pound. So, in these kind of problems start with a box where you list down all the given data in the form of a table as shown in the video. Now denote the unknown quantity of A and B by two variables a...

How To: Do high intensity interval training for beginners

Personal fitness coach Yuri Elkaim demonstrates how to do high intensity interval training for beginners on treadmills. Start out with a light walk on a treadmill for about three to five minutes. From a walk, do a low grade jog for 30 seconds. Then, switch to a minute and a half of walking. Use a three to one ratio of low intensity to high intensity workout. As the workout progresses, it will get more challenging. Repeat the workout interval repetitions for 10 to 15 minutes. The interval work...

How To: Find the equation of a line

In this video the instructor shows how to find the equation of the line given its slope and a point that lies on it. If the slope of the line is m and the point that lies on it is (x,y) then you can find the equation of the line by substituting the values in the slope-intercept form of an equation which is y = mx + b. Now substitute the values in the above equation and solve it for the value if the y-intercept y. Now you have the slope m and y intercept b. Substitute these values in the gener...

How To: Solve an equation using the point slope form

In this video the instructor shows how to derive a general equation for a line in Point-Slope form. The slope of an equation is the ratio of difference of y coordinates to the difference of x coordinates. In other words, slope is the change of y up on change of x. So you have the basic slope equation m = (y2 - y1)/(x2 - x1). When you have fractions you can simplify them by multiplying the denominator to the numerator on both sides. So multiply the equation by (x2-x1) on both sides. This gives...

How To: Solve problems about linear equation

In this video the instructor shows how to write a linear equation. If you need to find the equation of a line that passes through the two given points then you need to find the linear equation of that line. The first step is to find the slope of the line that passes through these points. The slope can be calculated by finding the ratio of the difference of y coordinates to the difference of the x coordinates i.e. the change in y up on the change in x. Now substitute the value of slope and any...

How To: Find the percent increase or decrease in a quantity

This video shows us the method to find the percent increase or decrease in a quantity. This can be done in 30 seconds. The formula states that the percentage increase or decrease is equal to the product of the ratio of amount (increase or decrease) and the original amount and 100. This is explained by two examples. In the first example the amount of increase of the price of groceries is found by taking the difference of the new price and the old price. This is divided by the original price an...

How To: Create an old vintage photo effect in Photoshop

CreativeIceDesigns shows all the steps it takes to give any photograph a nice, vintage look using Adobe Photoshop. The image must first be unlocked. You then select the grunge paper brush. Normally you should keep the aspect ratio of your image the same, but in this case, you should resize it to the same height as your paper surface. After changing the blend mode to multiply and adjusting the brightness, you then change the opacity and you'll have the "wrinkled paper" effect you're looking fo...

How To: Subtract fractions with uncommon demoninators

In this tutorial the author shows an easy and simple way of subtracting fractions with uncommon denominators. He says that to subtract fraction with uncommon denominator, we need to make their denominators equivalent first and after making the denominators equal, you need to increase the numerators proportionally to maintain the original ratio of the fraction. Now as the denominators are same, we can directly subtract the numerators arriving at a new fraction. He further shows how to deduce t...

How To: Understand basic probability with examples

This is a very basic overview of probability, possibly intended for an eleven year old. It is a very good introduction to probability for one that has never encountered probability before. The instructor is not always clear in his intentions. Someone watching this video would learn about probability, ratios, percentages, and fraction. There is a set of required knowledge to understand what the instructor is talking about. The instructor uses very nice diagrams and also gives nice explanations...

How To: Find the horizontal asymptotes of rational functions

Finding horizontal asymptotes is very easy! Not all rational functions have horizontal asymptotes. the function must satisfy one of two conditions dependent upon the degree (highest exponent) of the numerator and denominator. If the degree of the numerator is equal to the degree of the denominator, then the horizontal asymptote is y= the ratio of the leading coefficients. If the degree of the denominator is greater than the degree of the numerator then y= 0. If the degree of the denominator i...

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: Find the length of a side of a triangle using cosine

To find the length of a side of a triangle using cosine, you first need to find the angle and which sides are given. After you determine the angle and given sides, you'll need to figure out which trigonometric ratio to use. If you are given the adjacent side and the hypotenuse, you need to use cosine to solve. The degree equals adjacent divided by hypotenuse. In the example, Cos 39=3.5/x. After simplifying the equation, we found x to be 4.49. If the directions ask you to round, be sure to rou...

How To: Find the standard error of the mean

In this video the tutor explains about the standard error of the mean. He starts explaining by drawing the diagram of a distribution and now he takes ten samples from the distribution and starts plotting them. He says that in theory if we do it infinite times then we can obtain the sampling distribution of the sampling mean. For the example he takes the number of samples as 10. Now depending on these values of n we can get different sampling distributions. Now he intends to find the mean of t...