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How To: Solve quadratic inequalities in calculus

Calculus can be a bit tricky, but don't worry, Watch Math is here to help you out. Watch this math video lesson to learn how to solve quadratic inequalities in calculus. There's no better way to learn mathematics than from an advanced mathematician, like this PhD.

How To: Play the card game Sixteen

The multiple award-winning card game Sixteen is packed with head-to-head action. If you can you count to 16 and take calculated risks, then you can force your opponent to bust. But play your cards defensively at the right time or the tables will turn! Win the most sets and you'll win the game. It sounds simple (and it is), but Sixteen's unique strategy and cribbage-like counting will hold the attention of even the most seasoned game players.

How To: Make bio diesel

Make your own backyard biodiesel with the help of Kipkay. It's easy to make a small batch that will work in any diesel engine. You won't need any special equipment--an old juice bottle will serve as the "reactor" vessel--and on such a small scale, you can quickly refine your technique and perform further experiments. Thanks go to Rob Elam for the original article in Make Volume 3To download Making Biodiesel MP4 click here or subscribe in iTunes. Check out the complete Making Biodiesel article...

How To: Mix the Singapore Sling

Mixologist Chris McMillian walks us through the history and creation of the Singapore Sling in this instructional video. The drink originated in a hotel in Singapore--the drink used to be a Collins with a splash of cherry herring. This recipe is the original recipe from Raffles Hotel, where the drink was first made.

How To: Tie the 'Windsor' knot

The Windsor knot, also (wrongly) known as the "Double-Windsor" (a non-existent enormous 16-move knot), is the most well known knot in the world. The Windsor is a large, symmetrical, self-releasing triangular knot. The tie was named by Americans in the 1920-30's after the Duke of Windsor. The Duke was known for his fondness of large triangular tie knots, but didn't in fact invent this particular knot. His secret was a specially tailored tie with an extra thickness of material.

How To: A Guide to Downloading Console Games Online

In last week's guide, we covered the best places to purchase digital copies of computer games online. This week we'll cover another type of downloadable content: those available for video game consoles. Every major console out today either has or plans to have a DLC platform, but which one is the best? If you don't like leaving your house and want to play console video games, which console should you get? Below I will break down what the online marketplace offers so you can decide which conso...

How To: Enable Gaming Preferred Mode on Google Wifi or Nest Wifi for Smoother Stadia Streaming

Although not quite as common today with the always-connected world we live in, you still might be having bandwidth wars in your home right now. If the internet connection in your area is mediocre, you know the feeling well. Google Stadia recommends having a 25 Mbps connection for playing in 4K, so you can expect to need at least that much to maintain a smooth, high-quality gaming session.

Food Tool Friday: Meet PancakeBot, the World's First Pancake Printer

3D printing is getting closer and closer to becoming an everyday reality—which means revolutionary things are going to start happening for the home cook. Already there's a 3D printer that can produce edible tailored fruit and the Foodini, which can print full meals, including spaghetti and burgers. However, neither are available for purchase, and most likely won't be within reach of the average cook for years.

How To: Unleash the Beast with These Wild Animal Masks for Halloween

Animal masks are always a popular option for Halloween, not just because you can pair them with practically any outfit, but because they never go out of date. They've been a staple of Halloween costumes starting from the 1900's, but possibly even prior to that. George Takei, of Star Trek popularity, even left a hilarious comment on Accoutrements' Horse Head Mask Amazon page, making puns left and right about the animal mask—a testament to how trendy these faux mammalian skins really are.

How To: Increase or decrease by a percentage

In this video, we learn how to increase or decrease by a percentage. First, to increase you will need to find what the percent of the number is. To do this, you will find 10%, which should be very easy. As soon as you've found this, you can add or subtract to find the percent you need. Then, add this onto the original number and you'll know the percentage. To decrease the percentage, you will do the same type of equation. Except, you will need to subtract as you go to finish the problem. When...

How To: Repair broken eyeshadow with rubbing alcohol and a spatula

Is your eyeshadow busted and broken up? Don't toss it away just yet— it's totally repairable. Bring back the smoothness with a little tip that will save you tons of money in the long run. The key? Rubbing alcohol. By adding a little bit of rubbing alcohol to your broken eyeshadow, and by mixing it together with a small spatula or butter knife, you can get it back to its original vigor.

How To: Use the antes de and despues de verbs in Spanish

In this tutorial, we learn how to speak Spanish: Antes de / despues de + verb. If you want to say "I eat breakfast before I go to school" you will say "yo desayuno antes de ir a la escuela". You will change a verb in the phrase depending on where it is placed in the sentence. If you change this same example sentence around, it will sound different in the Spanish version of the same exact sentence than the original. To express the opposite idea, you will change the end of the verb to state the...

How To: Prevent edits or changes in documents in MS Word 2007

In this tutorial, we learn how to prevent edits or changed in documents in MS Word 2007. Start by going to the review tab, then click on protect documents. Then, click restrict formatting and adjust the different settings. Click on the check marks to choose what types of settings you want to restrict from being changed. This can make it impossible for anyone else to edit the pages except for the original author. You can also make an enforcing protection password so only the document creator c...

How To: Be wary of vampire voltage

Vampire voltage may sound like the next Sci-Fi channel original movie, but it's not. It's something that lives in your very home and can be affecting your energy bill even as you read this. Basically vampire voltage is an appliance that is using electricty although it's not being used. Computers, microwaves, blu-ray disk players, etc are examples of vampires.

How To: Increase the render speed in Final Cut Pro

In this video tutorial, viewers learn how to increase the rendering speed in Adobe Final Cut Pro. Begin by right-clicking on your current sequence and click on Settings. Click on the Video Processing tab and select "Always Render in RGB". Then click OK. This change will only be noticeable when working with really high quality high definition footage or film. Even then, you are able to re-render at a higher bit rate later, without having to affect the original image or export. This video will ...

How To: Replace the decklid and hood seal to a VW Beetle Bug

Restoring an old car can be a hassle at times, but the great thing about it is the ability to customize it any which way you want. But for the sake of keeping things original. This tutorial focuses on how to replace the decklid and hood seal to a VW Bug. It may seem like a difficult job, but after watching this tutorial, life may get a little bit easier. So good luck and enjoy!

How To: Restore German running boards on a classic VW Bug

The great thing about restoring old cars, is that you're able to take out old pieces from the car and switch them with new ones. But if you're facing a budget, then you need to try and save as much as possible. This tutorial will show you how. In the video, you'll learn some great tips on how to resotre the original German running boards on a classic VW Bug. So good luck and enjoy!

How To: Draw a simple dragon

Dragons are one of the most fun, traditional, and challenging things an artist can draw. Fortunately, Drawing Now is here to help you get started with this tutorial on how to draw a cute, simple, Western-style dragon. Here are their step-by step instructions:

How To: Make a Moroccan spicy lamb stew

Morocco has one of the finest, most savory culinary traditions in the world, and this delicious stew is a wonderful example of it. The Original Naked Chef here presents a recipe for a spicy lamb stew with loads of garlic, onion and chili. This is remarkably easy recipe for the massive amount of flavor it contains. The most challenging aspect of the recipe letting it cook long enough for the lamb to get tender without just diving right in and eating it!

How To: Add rational numbers

Learn how to add rational, or fractional, numbers by following the tutorial in this video. In the case of fractions where the denominators are the same, the addition is simple: you simply add the numerators and keep the denominator the same. When the denominators are not the same, you need to find the least common denominator (or multiple). Take a look at your denominators and test different numbers to find the smallest multiple of the two. Then, convert the two original fractions so that the...

How To: Make a simple origami paper swan

This video shows us how to fold a simple origami swan. Here are the following steps: Step 1: First of all take a paper and then crease it diagonally and then open the crease and then fold the paper on the crease line so that a cone is obtained with a triangle on the top.

How To: Batch resize photo in Photoshop

Are your high resolution photos taking too much space on your hard drive? Tired of getting file too large error when emailing photos? Don't worry Photoshop Samurai will help you batch resize your photos as fast as a ninja! You will need: Photoshop (Not Elements version), photos that need to be resized Go to file, then scripts and select image processor. Select the source folder (where your pictures are stored on your computer). Then select a destination location (where you would like the proc...

How To: Change the color of any object in Photoshop

The video explains how to change the background color of objects using Photoshop in a simple manner. This way is better quick mask mode, because this way is more efficient and more advanced. First you click control G, Image control color and then you take the Image samples. The tutorial shows how the oranges are changed from their original color into a reddish color. Then it shows you how it adjusts the shadows of the oranges and the color of the leafs. The video is quick and it explains full...