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How To: Find the slope of a line given a graph

Need to calculate how steep a line is? See how it's done 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 pedagogical superstar Salman Khan's series of free math tut...

How To: Recognize and work with linear functions in algebra

Need to solve a linear function? See how it's done 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 pedagogical superstar Salman Khan's series of free math tutorials...

How To: Find and work with functional relationships in math

Need some help figuring out how to make sense of functional relationships? See how it's done 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 pedagogical superstar S...

How To: Find the 100th term in a sequence

Need to find the nth term in a given arithmetic sequence? See how it's done 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 pedagogical superstar Salman Khan's seri...

How To: Find limits with L'Hôpital's (Bernoulli's) rule

Need to evaluate limits involving indefinite forms? See how it's done with this free video calculus 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 pedagogical superstar Salman Khan's series...

How To: Adjust brightness and contrast in Adobe Photoshop CS5

Have a digital image that's a little bit too dark or otherwise lacking in depth? Your fix is just a few mouse clicks away. This free software tutorial will teach you how to use the new Brightness & Contrast tools within Adobe Photoshop CS5. Whether you're new to Adobe's popular image editing software or a seasoned graphic design professional just looking to better acquaint yourself with the unique features of Photoshop CS5, you're sure to find something of value in this free video tutorial.

How To: Solve scalar field integrals in calculus

This video demonstrates that the line integral of a scalar field is independent of path direction. Learn how to solve scalar-field integrals with this free video calculus lesson. Looking for a primer on how to solve matrix problems using a TI-89 graphing calculator? See how it's done with this free video algebra lesson. 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, i...

How To: Use Maclaurin/Taylor series to find accurate integrals

See how to approximate a definite integral to a desired accuracy using Maclaurin/Taylor series and the alternating series estimation theorem with this free video calculus lesson. See how it's done with this free video algebra lesson. 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...

How To: Do the whiskey versus water bar trick to win bets

If you are looking for a cool new way to hustle free drinks at the bar or cash from your friends, check out this tutorial. In this video, you will learn an incredibly interesting trick using just whiskey, water, two shot glasses and a card or driver's license. Bet a friend that you can make make water and whiskey switch shot glasses without pouring or dumping either glass.

How To: Simplify expressions involving absolute value

Need to know how to simplify expressions involving absolute values? It's an absolute cinch. Learn how with this free video lesson. 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 free math tutorial, you'll learn how to divide one fraction into an...

How To: Evaluate expressions involving absolute value

Need to know how to evaluate expressions involving absolute values? It's an absolute cinch. Learn how with this free video math lesson. 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 free math tutorial, you'll learn how to solve problems with ab...

How To: Use interval notation to express inequalities

Could you use a little help figuring out how to use interval notation to express inequalties? Watch this free video lesson. 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 free math tutorial, you'll learn how to give inequalities in interval nota...

How To: Find the inverse of a function in algebra

Need a little help figuring out how to find the inverse of a function in algebra? Watch this free video lesson. 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 free math tutorial, you'll learn how to calculate the inverse of a given algebraic fun...

How To: Calculate limits with algebra and series expansion

Looking for an easy way to find limits? Watch this free video lesson. 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 free math tutorial, you'll learn how to find limits using series expansion and little bit of algebra.

How To: Prove the log a + log b = log ab logarithm property

See how to prove the log a + log b = log ab logarithmic property with this free video math lesson. 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...

How To: Prove cos(a+b)=(cos a)(cos b)-(sin a)(sin b) in trig

Need help proving the cos(a+b) = (cos a)(cos b)-(sin a)(sin b) trigonometric identity? This free video lesson will show you how. 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 ...

How To: Determine the equation of a trigonometric function

Need help in determining the amplitude and period of sine and cosine functions? This free video lesson will show you how. 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...

How To: Work with exponents (powers) in basic mathematics

Need help figuring out how to work with exponents in basic arithmetic? Find out with this free video lesson. 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 tutoria...

How To: Fold a very detailed origami rose from Prison Break

Love roses and complicated craft projects? Make a beautiful decorative paper rose using origami, the traditional Japanese folk art of paper folding. This 26-minute free origami video lesson presents complete instructions on how to make your own roses from folded paper. For more information, and to get started making paper flowers yourself, take a look!

How To: Tie a sliding Snell fisherman's knot

Know your knots! Learn to tie a sliding Snell fisherman's knot with this free video guide. When tying the sliding snell fishing knot, it's like tying the common snell, but you'll be adding an extra line. The knot is easy to tie provided, of course, you know how to go about making it. For an easy-to-follow, step-by-step overview of how to tie this useful fisherman's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Tie an uni loop fishing knot

Know your knots! With this free video tutorial, you'll learn how to tie a simple uni loop fishing knot. Uni loop fishing knots are made by creating a barrel knot and then sliding it back onto your hook. The knot is easy to tie provided, of course, you know how to go about making it. For an easy-to-follow, step-by-step overview of how to tie this useful fisherman's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Make a bimini twist fishing knot

Know your knots! With this free video tutorial, you'll learn how to tie a bimini twist fishing knot. A bimini twist fishing knot is best tied with a braided nylon rope, and it is often used on fishing boats. The knot is easy to tie provided, of course, you know how to go about making it. For an easy-to-follow, step-by-step overview of how to tie this useful fisherman's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Tie a constrictor knot

Know your knots! Learn to tie a constrictor knot with this free video guide. A constrictor knot is perfect for binding two pieces of rope or two objects together. The knot is easy to tie provided, of course, you know how to go about making it. For an easy-to-follow, step-by-step overview of how to tie this useful binding knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Tie a simple overhand bend knot

Know your knots! With this free video tutorial, you'll learn how to tie a simple overhand bend knot. Overhand bend knots are extremely simple, but there are several variations to them as well. The knot is easy to tie provided, of course, you know how to go about making it. For an easy-to-follow, step-by-step overview of how to tie this useful fisherman's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Tie a bowline fishing knot

Know your knots! With this free video tutorial, you'll learn how to tie a bowline knot. The great thing about a bowline knot is that no matter how much tension is applied, it will always slip back out when you want it to. The knot is easy to tie provided, of course, you know how to go about making it. For an easy-to-follow, step-by-step overview of how to tie this useful fisherman's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Tie a simple chain knot

Know your knots! With this free video tutorial, you'll learn how to tie a simple chain jeweler's knot. Chain knots are attractive knots and are used in a lot of jewelry projects. The knot is easy to tie provided, of course, you know how to go about making it. For an easy-to-follow, step-by-step overview of how to tie this useful crafter's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Tie a reef fishing knot

Know your knots! With this free video tutorial, you'll learn how to tie a reef fishing knot. Tying a reef knot is similar to tying a square knot, and it can be tied on any type of fishing line. The knot is easy to tie provided, of course, you know how to go about making it. For an easy-to-follow, step-by-step overview of how to tie this useful fisherman's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Program a mouselook scroll for Java game development

Want to write Java applications but don't know beans about object-oriented programming? Never you fear. This free video tutorial from TheNewBoston will help you on your merry way to accomplishing just that. Specifically, this lesson will demonstrate how to work with the MouseLook class for a free look effect in Java game development. For detailed instructions, watch this programmer's guide.

How To: Download and use clipart in Microsoft Office: Mac 2008

Clip Art from Microsoft Office allows you to insert stock photos into you PowerPoint, Word, Excel and Entourage documents easily. You can gain access to the Office Clip Art site easily in any of the mentioned applications. The Microsoft Office for Mac team shows you just how to download and use clipart from Office Online in this how-to video. You can get free stock images of low-priced professional quality photos.

How To: Do a Pop Tornado freerun trick

In this video tutorial, viewers learn how to do a pop tornado free-run trick. The pop tornado is the same as a tornado kick except he pop tornado does not have that extra step. Because there is no step, this move is more difficult to perform. Users should learn how to do the tornado kick before attempting this move. Start with a wide leg stance and turn the body. Then do a hook kick and set the feet down. Now quickly jump as you pull your arms in and spin the body. Lift the knee up. This vide...

How To: Do a palm-spin gainer in parkour or free running

In this how-to video, you will learn how to perform a palm spin gainer. This is useful if you enjoy free running and want to learn an awesome trick. First, place your right hand on the wall. Drive up your right leg up, as this will give you the rotation you need. The other leg is used for take off. Your hand will spin while you do this trick. Look over your shoulder to wear you are going to land. Make sure your legs are split while you perform this. This video gives you the proper tips and kn...

How To: Do a double leg freerun trick

In this video tutorial, viewers learn how to do a double leg free-run trick. This trick is similar to the side flip, except the side flip needs the legs to be tucked in while the double flip needs the feet to be kept straight. The double leg is at a 90 degree angle in mid-air. Keep your legs together and knees locked. Land on the balls of your feet. Never land on the heels or flat footed. This video will benefit those viewers who are interested in flexibility, aerobics and free-running, and w...

How To: Dual boot Windows 7 & save YouTube videos

Patrick Norton and Veronica Belmont from Tekzilla will show you how to dual boot Windows 7 and download videos from YouTube. The hosts show viewers how to dual boot Windows XP Pro32 bit and Windows 7 RC 1 64 bit. In the first step as always you will want to back up your hard drive and at the very least they recommend to back up your most important files. In the case that something goes terribly wrong you can use a free program called EASEUS to make a complete image of your whole drive, this a...

How To: Draw nine goldfish in free style

In this video, artist Henry Li, shows you how to draw nine goldfish in a free hand, loose style. He demonstrates proper hand placement, and technique in order to achieve a fluid motion to the piece. Nine goldfish is a good omen for Chinese, it suggest best fortune. Watch the magic happen as he shows you exactly how to achieve this excellent work of art.

How To: Call 911 using Ford SYNC

If it's an emergency, sometime you just don't have enough time or energy to pick up your mobile phone and call 9-1-1. Sometime you just can't move and the only thing still working is your mouth. Ford's new SYNC system provides an option for hands free 911 Assist. In a crash involving airbag deployment, 911 Assist places a call directly to a 911 operator. Your bluetooth phone must be on and stored somewhere inside the vehicle.