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How To: Tell whether a relationship is a function in math

Can't tell if a given relationship in a sequence is an actual mathetmatical function? See how to find out with this free video math lesson. Need help finding the 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 pedagogica...

How To: Develop black and white film in the dark room

Developing black-and-white film is an arcane, but very rewarding and useful process if you want to make really good-looking prints from your film. This two-part video goes over the entire process, from chemical measurement and selection to the actual process of developing the film. A must-watch for any would-be film photographer.

How To: Relate the information on your camera to the lens

This is a video tutorial showing its audience how to relate the information that is displayed on your camera lens to your actual camera. The first step is to grab your camera and begin studying your lens. Next look at the mm reading on your lens and the aperture reading. These settings will assist you with setting your depth of field. Next look for your focus ring. Your focus ring will allow you to focus your photos in manual mode. Next look for the focus reading, this will tell you how far a...

How To: Update a device driver in Windows 7

From "Butterscotch" tutorial Michael Callahan walks you through updating your driver for Windows 7 operating system. This will help to improve communication between your printer, scanner, or any other devices digitally connected to your Personal Computer. Simply by going through the "start" menu you can then search and find out if there is new drivers for your devices. After that it will tell you and assist you downloading the new driver. Leaving you with the best driver software for your dev...

How To: Tie the Diamond Ring decorative knot

In this video tutorial, viewers learn how to tie a diamond ring knot. The name refers to the similar appearance of an actual diamond ring. The Diamond Ring knot is the fusion of an Overhand Knot and a tying technique called circling. Begin by making a loop; put one end of the string through the loop and pull it to form a pretzel shape. Continue putting one end the string through the loop. Eventually it will build up and it will just need to be tightened. This video tutorial will benefit those...

How To: Solder & heat shrink wires

This is how to solder wires properly and then heat shrink them in order to insulate them. Firstly upkeep of the soldering iron is required to keep it from oxidizing. Portable versions of the iron are also available to make work more convenient. A solder sucker is required to suck up and solder left behind by the iron. Alternatively you could use a solder wick which when used with the solder iron can absorb all the solder over the circuit board. Onto the actual process, strip off some of the w...

How To: Create a Hello Kitty nail paint design

This video by KlairedelysArt demonstrates to us how to create a Hello Kitty nail paint design. She does this design by first painting it on plastic using any household plastic bag. She clearly explains all of the supplies needed and the demonstration on how to paint the actual Hello Kitty logo is very thorough. All she uses to make this happen is a plastic bag, white nail varnish, black and fuchsia nail art pens, and clear nail varnish. She paints the Hello Kitty logo onto the bag, lets it dr...

How To: Replace the laser in your PS3 Blu-ray Disc drive

Although your Blu-ray Disc player inside your PlayStation 3 may be working just fine, there are cases where they have been known to fail, specifically the laser. This is a very rare case, but if it happened to you, if your Blu-ray player isn't reading your movies anymore, this guide aims to help you fix it. Watch the video to learn how to disassemble the PS3 to retrieve the Blu-ray player.

How To: Write the letter I in calligraphy copperplate

Learn to write the letter “I” in calligraphy copperplate with this video. First, we need a book and a pen suitable to write in calligraphy. The pen's tip has to be bendable. First write the capital "I". It looks like a long "g". When half way from the top, the nib of the pen bends to give a thick feel and again it fades out to a thin one. The small "i" looks the like the actual "i" itself with minor changes. This will help you in your writing (font) style.

How To: Set up an active speaker system

This video shows you how to set up an active speaker system with a built-in amp. Move the gain up and have it halfway up on the mixer. The actual volume control should be set to 0 prior to moving the gain up and down. Mess around with the gain, and slowly bring the gain up until you are slowly tapping into the ampere. You can mess with the gain until it sounds right. This will increase the bass on our mixer.

How To: Create a rollover button in Flash

You can make a rollover button in Flash by following the instructions shown. You start by opening up Flash to work on your project. You then follow along and draw a shape for the actual button. Then follow the steps given to turn your shape into a button that is click-able and links to your movie clip. This is great for placing on a website instead of placing a bulky video clip on the site. If you complete the directions correctly you will have a fully working click-able button that will link...

How To: Easily draw a horse

Drawing of a horse is broken down into a helpful series of tips and tricks in this nice, succinct tutorial video. Step 1, the video describes the use of ovals and other simple shapes, to begin to plan the overall structure, for later. Step 2, around those ovals and simple shapes; begin a rudimentary outline of the horse you're trying to draw. Using the example given, see what's possible, and begin to erase your ovals and other structure-assisting shapes, in the middle, giving you now your act...

How To: Plot an ordered pair

How do you plot an ordered pair on a x, y grid? This video will explain everything, from the very basic idea to how to actual application. In this step by step tutorial, the viewers will be exposed to the techniques and skills required to accurately plot an ordered pair on the x, y grid. Each instruction is given with much clarity and explanation. Therefore, the viewers should have absolutely no problem plotting by themselves after viewing this tutorial video.

How To: Make a 3D origami teddy bear

In this video, Jewellia describes how to create a 3 dimensional origami teddy bear. First, she lists the materials needed and the quantities necessary. She then begins the actual process of building the teddy bear, which is broken into steps. Step 1 is "creating the base". You will create 18 "pairs" out of origami paper which you then put small blue origami triangles on top. It looks circular. She then demonstrates how to repeat this circular pattern of triangles upward until you have a cylin...

How To: Make a paper gun that shoots sniper

This video teaches you how to make a paper gun sniper rifle. You'll be amazed how quick and easy it is to make a proper paper gun that shoots just like a sniper rifle. This video is perfect for anyone looking to have fun with some paper guns. Make sure you reuse, reduce, and recycle. You'll learn how to make the actual gun as well as your bullets. Also, be safe and have good clean fun with your home made paper gun.

How To: Make a scary light up pumpkin that blasts a truck horn

Warning: this video does not demonstrate the actual instructions for making this spooky Halloween LED light up pumpkin that blasts a truck horn. Check out http://blog.makezine.com/archive/2008/10/howto_tuesday_scariest_pu.html for more information and a complete build process. Learn how to make it with the text and image process step by step. Halloween fun!!

How To: Take pictures of lightning with a Nikon DSLR

Here is a detailed video that explains techniques and equipment you can use to take pictures of a lightning storm. Yes, take photographs in an actual lightning storm. You will definitely need a tripod to take a photograph with a long exposure and a plastic bag to protect your camera from the rain. Telephoto lenses allow you to keep a safe distance and avoid switching lenses during a lightning storm. Equipment used in this video: Nikon d300, Nikon 18-200mm vr and Nikon 70-200mm f/2.8 vr lenses.

How To: Make homemade ice cream with an ice cream maker

Now that summer is swiftly approaching, it's time to start wrapping your mind around that most enjoyable of summertime treats: Ice cream. While you can certainly go to the store and purchase bulk packages of rocky road, store-bought ice cream is full of gnarly-sounding ingredients that sound more like a chemical found in a mad scientist's lab than actual food (xanthan gum, anyone?).

How To: Dirty ice or crumb coat a cake

Crumb coating, also known as dirty icing, a cake, does not, as its name suggests, mean adding crumbs to the outer coating of a cake. Instead, crumb coating is the step that most pastry chefs take to make sure that all the loose crumbs on a cake are trapped in an initial coat of icing so that when you add the second (and actual) icing layer no crumbs mix with the icing and look bad.

How To: Deal with cravings on a raw food diet

In this video we learn how to deal with cravings on a raw food diet. If you are having strong cravings, you can sometimes give into it or stand up to it. To help you avoid this, try to fill the void with something else. Try to relax, hang out with a loved one, or watch a movie. This will help you feel happy and fill the void. Usually you are just craving the emotion that food is giving you, not the actual food. So, figure out what the emotion that you need is and start to fill that into your ...

How To: Balance an easy chemical equation

In this video, we learn how to balance an easy chemical equation. You can do your equation by testing it out with the actual chemicals. Watch and see what the reaction is as they start to mix together. To balance this reaction out, you will need to analyze the number of atoms that each element has on both sides of the equation. For it to be balanced, you must have the same number of products and reactants in the equation. You cannot create or destroy matter, you can only change its form, so r...

How To: Draw eyebrows and eye lashes

In this tutorial, we learn how to draw eyebrows and eye lashes. First, sketch out the basic shape of the eyebrow. Cross edge with a 2B pencil, then blend it in to lighten in and act as a skin tone. Then, draw the actual hair with a B pencil, going upwards with the pencil strokes in the front area. For eyelashes, you will sketch out the outline with a 2H, then draw the eyelid and the hairs for the lashes. Draw in the direction and the shape of the eye to give off the illusion that it's round. ...

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: Draw manga in MS Paint

In this tutorial, we learn how to draw manga in MS Paint. Start by drawing false eyelashes to case the eyes inside of. Next, draw the false eyelashes underneath the eye, then draw the actual eyes in. Make sure to give them large pupils. Add in a bright color for the rest of the eyes, then add a lighter shade of the color at the top for a highlight. You can copy and past one eye, then flip it to make them both exactly the same. After this, draw the nose and the mouth underneath, making them mu...

How To: Understand sparring in boxing

In this tutorial, we learn how to understand sparring in boxing. A good technique is what you need when you are sparring. If you're a beginner, make sure someone with a little more experience is watching you and giving you tips. Sparring needs to be a controlled fight and can help you fight better when you are in a full on fight. When you are sparring, you will be in a controlled area and have experts around you, start out with the other person around you and take shots at the person to try t...

How To: Do the "Three Aces" card trick

This is a video tutorial in the Magic & Parlor Tricks category where you are going to learn how to do the "Three Aces" card trick. For this trick you need a deck of cards and you shuffle it nicely. Then you flip the deck and reveal the center part of the card and say it is the ace of hearts. The actual card is the 3 of hearts. Place this card face down on the table. You repeat this process and similarly take out a clubs and diamonds card. Then you perform a magic gesture and say all three car...

How To: Build a sturdy flatbed truck out of Legos

Looking for a new Lego project? Look no further! In this two-part series you'll learn how to build a great flat bed truck out of lego bricks! Each video starts showing you each brick that you'll need, the first video being the truck cab, and the second being the actual flat bed, and then goes into a great, step-by-step tutorial, showing you where each piece goes and before you know it you'll have a flatbed truck!

How To: Make a diorama waterfall

If your son or daughter is planning on making a diorama for a classroom project or just because, making a cool water feature can be a great idea. Using real water may be fine and all, but if you want to prevent any kind of mess from happening, you can build one using materials that give a water like feel. So in this tutorial, you'll be finding out how to make a diorama waterfall from scratch. It's great for dioramas and is sure to be a much better fit than actual water. So good luck and enjoy!

How To: Firm your booty with a yoga wall-sit chair pose

In this video, Dina Prioste shows us how to your booty with a yoga wall-sit chair pose. Start off by sitting flat against the wall with your feet hip width apart. Hold this position for a few breaths. You shouldn't be sitting on an actual chair, just an invisible one. Now, grab a book and place it between your thighs, then squeeze as hard as you can while still breathing and focusing as much as you can. When finished, take a break and get back into the position and do that same move once agai...