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How To: Find the greatest common factor of two numbers

Looking for a guide on how to calculate the greatest common divisor for two numbers? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to ...

How To: Find the least common multiple (LCM) of two numbers

Need to know how to figure out the least common multiple or LCM of two given numbers? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to...

How To: Calculate the area of rectangles and triangles

Need to know how discover the area of a triangle or rectangle? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to find the area and peri...

How To: Add and subtract negative numbers in basic arithmetic

Looking for a guide on how to sum and subtract negative integers? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to add and subtract ne...

How To: Cook a bacon wrapped sausage roll

Are you feeling in the mood to really test the limits of your arteries? Then this is the recipe you've been looking for. Everything is better with bacon, right? So take that sausage and wrap it up with some bacon for a truly decadent adventure in gluttony. This is literally not for the faint of heart! This video will show you how to cook a bacon wrapped sausage roll.

How To: Use a focus group for new brand name candidates

Focus groups strike fear into the hearts of even the most season marketer, and with good reason. In a world where everything is subject to change based on public opinion, from movie endings, to popcorn flavors, to logo colors, focus groups can make or break a new idea, but it doesn't have to be that way. A focus group is just a way to gather opinions in a vigorous way and can be very useful. Watch this video tutorial to use a focus group to develop and test a new brand name or corporate ident...

How To: Cook delicious stuffed flank steak for Moms

The Family Circle Test Kitchen brings us this demonstration of how to prepare a delicious Stuffed Flank Steak. The stuffing is made by combining a package of frozen spinach, thawed and drained, some crumbled blue cheese, a jar of roasted red peppers, drained and chopped, some bread crumbs, an egg yolk, and some garlic salt and black pepper.

How To: Use a fertility microscope to determine ovulation

Another way to track your ovulation cycle is with a fertility microscope. A fertility microscope allows women to identify their most fertile days by testing and viewing the visual changes that take place in saliva throughout the monthly cycle. This method is reliable and effective, and can greatly increase your chances of getting pregnant. All this requires is saliva, so it is not invasive and doesn't use needles. So, check out this tutorial for advice and instructions on how to use one of th...

How To: Recycle coffee grounds into compost at home

In this how-to video, you will learn how to recycle your used coffee grounds into compost for your personal garden. Coffee grounds are very good for your soil and can be used for all winter long. If you stick a thermometer in there, you will see that it is about 106 degrees. This means that it is working on the inside. You can also your hand to test the heat inside the compost as well. You should make about a cubic yard of the coffee grounds for the compost to be effective. This video gives y...

How To: Build a unique terraced garden

In this episode of Southwest Yard and Garden Curtis Smith shows you how to turn a steep slope into a usable garden. By building walls along the slope using serpentine designs he shows you how to obtain a compromise of both strength and artistic design. Starting with a good concrete footer and rebar you can construct a retaining wall strong enough to hold the weight of the slope. Materials such as wood and railroad ties can be used but may not stand the test of time as the weight of the soil c...

How To: Make a digital pinhole camera on a budget

In this video you learn how to make a digital pinhole camera. The video begins with an introduction addressing the main themes to be dealt with in the video - tight budgets, photography and specialized lenses. In this video, Kai modifies a photo lens cap by poking a large hole in it. After making this large hole, he makes a smaller hole in a thinner material and lines the hole up in the center. He calculates the size of the hole he needs based on the wavelength he will be photographing. He us...

How To: Cook a steak with Gordon Ramsay

The steak should be at room temperature so it will cook quickly and evenly. He heats some oil in the pan until it just starts to smoke and then puts in the steak. Steak should be turned only once during cooking. The Chef demonstrates how to test for rareness by touching the meat and then comparing with spots on the inside of the hand.

How To: Adjust the truss rod on your guitar

The truss rod is a big metal bar that goes through the whole neck on your guitar and is used to control the amount of arch that the neck of your instrument gets. You will want the neck to be essentially straight, with a tiny bit of curve. Lots of things can cause your wood to arc..weather, storage, age.. and the truss rod is used to fix this and keep the neck straight allowing you to play your piece properly. All guitars come with a truss rod and they are easy to adjust if need be. This tutor...

How To: Use the Wedge ROP in Houdini 9.5

The Wedge ROP is a render output driver, which can be used to change variables on the fly while rendering. This can be very useful when simulating, in that you can test out different parameters to see the different results. It's a relatively new feature in Houdini 9.5.

How To: Make an evasive beeping thing

This video shows you how to make a prank toy called "The Evasive Beeping Thing." You will need: a 555 timer, a couple of 3904 transistors, a couple of capacitors, some resistors, a 9-volt battery clip, a small speaker, and a small piece of circuit board to settle everything. Follow these simple steps:

How To: Make homemade natural dog food

If you're looking for some natural dog food recipes or homemade dog food, this recipe from the Natural Pet Food Cookbook is a great start. Chef Jason Hill of Chef Tips puts Bandit's Beef Stew to the test, and this dog food recipe was approved with enthusiasm by his family's Shih Tzu puppy, Sugar. This recipe can be prepared as an organic dog food with the right ingredients. Just choose canned organic vegetables when preparing this meal. It's also a human grade dog food, as Chef Jason Hill att...

How To: Hack wifi using Wireshark

If you're trying to hack someone's wifi, a useful bit of software you may want to try is called Wireshark. Wireshark is a wifi packet sniffer, which is an essential step in actually breaking into someone's wireless system. Of course, this is illegal, so make sure you're only doing it to test a network's security, or for your own educational purposes. Check out the video, follow the steps and see how secure network is. Hack, hack, hack!

How To: Fix the VAIO SZ spacebar

In this video, we learn how to fix the VAIO SZ space bar. First, gently lift up on the space bar until the top is removed from the bottom of the board. After this, take a scrap piece of paper and place it underneath the middle of the metal that's on the space bar. After this, click the bar back into place on the keyboard. Now, test out the space bar to see if it works! It should be working without any problems now. If you do experience more problems, just repeat this same procedure and you wi...

How To: Fireproof a balloon

In this tutorial, we learn how to fireproof a balloon. Usually, if you bring fire to a balloon it will pop, but there's a way to avoid this! First, get your balloon and place it around the nozzle of your sink. Then, fill it up with water until you have a decent amount of water. Now, blow some air into the balloon and tie at the end. From here, put your balloon to the test! Place a lighter underneath the balloon to see how it reacts. It should not pop like it did before. The water will absorb ...

How To: Change the fog lights on a Chrysler 300C

In this video we learn how to change the fog lights on a Chrysler 300C. First, take ff the front bumper of the car and set it down on somewhere safe. Remove the bracket that is around the light and use the plastic of the bumper as a bracket. Once you remove the light, replace it with a new one inside. After this, you will need to re-wire the car as you had it before and make sure the bumper is placed back in the car correctly. Once you're finished with this, test out the lights and then use w...

How To: Replace and install a toilet with Lowe's

In this tutorial, we learn how to replace and install a toilet with Lowe's. To get started, you will first need to turn off the water to your home, then take measurements around the toilet. Next, remove the top of the tank, then flush the toilet and remove excess water. After this, remove the water from the bowl using a sponge or towel. When finished, disconnected the water supply line and drain the water into a bucket. Now, leave the tank connected to the bowl and remove the bowl caps. Loose...

How To: Name an alkyl halide (or haloalkane) in organic chemistry

What's in a name? Well, your chemistry grade, for one. In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to name alkyl halides. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.

How To: Adjust the spring tension on a Tremolo

In this video, we learn how to adjust the spring tension on a Tremolo. First, find the strings in the back that are parallel to the body of the guitar. Then, unlock the nut and set the fine tuners so you have maximum range of adjustment. Start to twist the tuners at the bottom of the guitar until the tension on the strings is enough for you to play correctly. Then, go to the back of the guitar and adjust the crimp screws that are along it. When finished with tightening your guitar, test it ou...

How To: Structure phrasal verbs in English

In this video, we learn how to speak English by changing the structure of phrasal verbs. Phrasal verbs can be transitive or intransitive, which means followed or not followed by an object. Transitive phrasal verbs can be separable or inseparable, which means the object can come between the verb and a particle. With a phrasal verb that is separable, pronouns as direct object must be placed between the verb and its particle. Examples of this include: children put on costumes, children put costu...

How To: Install sequential (chase) tail lights on a Mustang

In this video, we learn how to install chase tail lights on a Mustang. First, you need to remove the rear trunk panel and trim piece. Next, prepare your tail light kit by following the directions that are given to you with the package. Next, cut the tail light wire. Now, put on your turn signal and take note of which light it still blinking, then mark it with electrical tape. Now, swap that light into the in board position and run the new wires by rewiring the new lights into the tail light. ...

How To: Make chocolate bars with surprise fillings

You know how people always get frustrated when they open up a Valentine's Day chocolate gift box to find no labeling device for the chocolates there, forcing them to taste test each one to see if they like 'em? Recreate this frustration and relish in the schadenfreude by baking these melt in your mouth chocolate bars, each one filled with something different, from caramel and peanuts to almonds and more chocolate.

How To: Rewrite expressions with the distributive law of multiplication

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve problems requiring you to rewrite and simplify an expression with th...

How To: Write a multiplication problem in exponential notation

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to write a multiplication problem as an exponent problem.

How To: Follow the order of operations in basic mathematics

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve problems requiring use of multiple mathematical operators at once.

How To: Solve rounding problems in basic mathematics

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve problems requiring you to round whole numbers.