Cross Product

How To : Use cross products to solve proportions

To solve a proportion for a variable you should employ cross multiplication. The basis of cross multiplication is the property which states that the product of the numerator of one fraction and the denominator of what it is set equal to is equal to the product of the remaining ...more

News : Basic Math Operations

It was brought up a while back in a Community Call to Arms that *math* is handy for encryption (and let's face it, everything) so let us go over things you just have to know. "In its simplest meaning in mathematics and logic, an operation is an action or procedure which produc ...more

How To : Convert units of measurement

This video shows you how to easily convert units. The first step you have to do is setup a proportion between a known conversion (e.g.. convert 2.5 km to m: 1km = 1000 m, => 1 km/1000 m = 2.5 km/X m). The second step you have to do is solve the equation by taking the cross pro ...more

How To : Solve math problems using proportions

Proportions or ratios are fundamental concepts of mathematics. A proportions is an equation that states that two ratios are equal. Hence proportion can be written in two ways as a:b=c:d or a/b=c/d. In these equations a and d are called as extremes and b,c are called as means. ...more

How To : Create a sweet pink bridal makeup look for Asians

Doing makeup on Asian women is a lot different to doing makeup on any other ethnicity, mostly because they have different face shapes and eye shapes. More than half of Asians don't have a crease, or a fold above the eye, so their eyes are monolids. This makes normal makeup ap ...more

How To : Wrap & wear your baby in a long scarf

This video tutorial shows you how to use a long wrap product to dress yourself while creating a secure carrier for your baby. The long wrap is brought forward from back to front and round your belly button, criss-crossed over your back and brought forward and criss-crossed onc ...more

How To : Style Stellar Brows

The importance of the brow has not been forgotten as much as it has been overlooked. A natural tool of communication, the brows can convey surprise, disdain, and sorrow with a lift, a furrow, or an expressive softness. The masters of makeup, like Max Factor and Ben Nye, knew t ...more

How To : Stay Safe When Trick or Treating on Halloween

Halloween has become one of the most popular holidays of the the year in the United States. Retailers even lease out empty retail spaces to put in Halloween stores. People hang Halloween lights on their houses, decorate the front yard and of course there are hundreds of haunt ...more

How To : Assemble a Survival Kit

I am writing this quick post in response to the recent earthquakes and tsunamis that are affecting Japan. As soon as the news broke, and we began to hear of tsunami warning for our area, I immediately realized how under prepared I was for a natural disaster. The thing that dro ...more

How To : Solve a proportion word problem in algebra

In this math lesson we will learn how to solve a proportion word problem. Watch the video to learn how to set up a proportion, solve it, and interpret the answer. Definition A proportion is a statement that two ratios (or fractions) are equal. The cross products of the terms ...more

How To : Create a simple and elegant bridesmaid makeup look

Spring is officially wedding season, so chances are that you're invited to a coupling of two families or may even be holding a lavish wedding yourself. Whether you're going to be a bridesmaid or will be choosing your bridesmaids soon, make sure they look elegant and polished b ...more

How To : Create a bold modern pin up makeup look

We are officially living the era of the smoky eye. No matter where you go you see girls who all look the same, with bronzy, blended out smoky eyes paired with nude or pale pink lips. Call it the Kim Kardashian effect; call it modern drama, but we're honestly getting sick and t ...more

How To : Tie the Tea Cup decorative knot

If you're into arts and crafts then you know that there is more that you can do with a long piece of string than just tie your shoes. On this TyingitAllTogether video you have the opportunity to tie the teacup decorative knot using one long piece of string folded in half. The ...more

How To : Solve math proportion problems

Look for a vertical or horizontal relationship in the given equation. In the horizontal or vertical side of the equation where both numerator and denominators are given, look for a multiplier to the smaller number so that the product is equal to the bigger number. Use this mul ...more

How To : Compare fractions.

This video will show those who would like to learn more about math how to easily compare fractions with different denominators using a simple technique. You will be able to compare the fractions to each other by multiplying the numerator of each fraction with the denominator o ...more

How To : Solve the Rubik's Cube with the beginner's method

Are you a beginner Rubik's Cube solver? Can't quite figure it out yet? Too slow? Well, solving the Rubik's Cube is easy, but solving the Rubiks Cube fast is hard, just keep that in mind. This three-part video tutorial will show you how to solve the mighty puzzle with the begi ...more

News : E3 Sneak Peaks of Sony's Next Generation Portable

In just a few days, the biggest expo in the video game industry will unleash the newest games and hardware from all of the major companies. Nintendo is set to unveil its Wii-replacing Project Café and Konami will showcase its upcoming lineup, including new Silent Hill and Meta ...more

News : Sew No More! Spray on Dress (Better Not Melt...)

Fashion designer Manel Torres has teamed up with scientists at Imperial College London and designers at the Royal College of Art to invent spray-on clothing, an instant, sprayable, non-woven fabric-in-a-can. The innovative product (called Fabrican) promises to be useful in th ...more

Making Electromagnetic Weapons : EMP Generator, Part Two

In this article, I'll be covering Triggers and Coils, part two of the series (see part one here). Generally, a simple EMP generator consists of four components; a capacitor, a transformer, a trigger and a coil of copper wire. The transformer component can be varied, but the co ...more

News : Google+ Pro Tips Weekly Round Up: Google Cleans Up

It’s been a pretty big week for Google, and Google+ itself. There were a number of articles proclaiming the end of Google+, because allegedly traffic dropped over 60% after it opened to the public. Then +Steve Yegge accidentally posted a long rant on Google+ itself, which was ...more

GENRE JAM : West Side Story (1961)

There's gonna be a rumble.... For this week's GJ article, I thought I would jump right into talking about a mortal-lock favourite of mine: West Side Story. If you haven't seen it (and a lot of folks havent - dudes especially) and you want a lesson in filmmaking craft from a b ...more

How To : Repack a Motorcycle Muffler

Periodically, motorcycle and ATV exhaust system can be rebuilt to maintain the proper performance and sound level expected from the exhaust system. My experience was with a dirt bike that had an aftermarket high performance exhaust installed.I bought my 99 XR400 second hand an ...more

Alan Wake : Captain Obvious

In Alan Wake, there are hidden messages hidden throughout the levels that are only visible with a flashlight. If you don't flash the light at a particular spot, you will not be able to see the message. These messages are left by a mysterious entity trying to give hints to Ala ...more

SCRABBLE Facts : Butts, Boards & Blasphemies

SCRABBLE was invented by Alfred Mosher Butts, an architect in New York, in an attempt to make a word game that combined anagrams and crosswords, which involved chance, luck and a great degree of skill. Together, Butts and game-loving entrepreneur James Brunot, refined the game ...more

How To : Make A High-Lighter Stun-Gun

The Stun-Gun In this article, I'll show you how to make a small, weaponized highlighter. Before I get into how to built this device, let me warn you. This device is harmful! When used, it can cause burns and/or serious muscle spasms. The voltage is potentially deadly! DO NOT ...more

Vidify : The Best Automatic Video Editor App for the iPhone

There’s a race on to see who'll be the Instagram of moving pictures. This makes sense, since many of our phones are clogged with video that, so far, no one is going to see. Wouldn’t it be great if there were a simple app that could take our video content, edit it for us, and t ...more

Night People : A Bad Vibes Label Profile

Night People: A Bad Vibes Label Profile Shawn Reed is one of our favorite people, not content with making music with Wet Hair, he also runs 'Night People' - an almost complete DIY record and tape label operation in Iowa - a label which has consistently put out and introduced ...more

News : Foreign Countries

International Pet Travel: Taking Your Pet Animal to a Foreign Country If you are taking a pet to another country (permanently or for a visit), contact that country's consulate or embassy for information about any requirements that you must meet. A list of consulates can be fo ...more

Market Reality : Lampix, Nokia, Xiaomi & More Invest in AR

Over the past week, companies took a variety of approaches to investing in augmented reality. Lampix is backing its own effort to build an ecosystem for augmented reality platforms. Nokia and Xiaomi are teaming up on numerous fronts, potentially including augmented reality. ...more

News : The Foods Most Likely to Sicken You in the US

Food is both a necessity and a joy. Many people enjoy exploring, cooking, eating, and learning about foods from around the world. But the picture isn't always rosy. A new report from the Centers for Disease Control and Prevention (CDC), highlights the ways and whereabouts of f ...more

Prev Page
  • Hot
  • Latest