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 word problems that require you to divide whole numbers.
Making traps is a lost art. Landmines are facing international condemnation, hunting is barely allowed anywhere. There just aren't that many reason to make them anymore. But don't let that stop you! This video will teach you how to make a double spring snare trap using only basic wilderness materials. Hopefully you'll catch more rabbits this way than Elmer Fudd did.
In this tutorial, learn how to arrange a double wing offense for your kids' football team. This strategy is easy for kids to understand and will help you win your games. You can use this offensive lineup in any type of football, but it's great for a pee-wee league. Check it out and be undefeated!
Need help figuring out how to tie a men's necktie using a double (or "full") Windsor knot? It's easy! So easy, in fact, that this video tutorial can present a complete, step-by-step overview of the process in just over a minute's time. For detailed instructions, and to get started tying perfectly symmetrical Windsor knots yourself, watch this sartorial guide.
Still wearing a clip-on in your adult life? It's time to take the clip on off, and learn to tie a tie... and while you're at it, how to tie a tie in multiple ways! In this video, learn how to tie a double windsor knot.
Down on your luck? Don't take any chances. Learn to make a clever variation of the most basic of origami sculptures, the lucky paper crane. This video tutorial presents a complete, step-by-step overview of how to make a "double" crane using origami, the traditional Japanese folk art of paper folding. For more information, and to get started making your own paper birds, watch this arts-and-crafts guide.
Equations involving square roots are difficult to solve because of the complexity involved in performing operations on the square root terms. But you can follow a series of steps to solve these problems easily. To solve these kind of problems first isolate the square root term on one side of the equation and the non square root terms on the other side of the equation. Now in the next step square both sides of the equation. This gets rid of the square root on the left hand side and the equatio...
This video shows the method to prove some trigonometric identities. This involves the use of algebra and knowledge of basic trigonometric identities. The video demonstrates three examples to illustrate this problem and its solution. The first problem shows a relatively simple problem involving sines and cosines. The video shows some basic algebra steps to simplify the problem and prove the identities. The second example involves a slightly complicated problem involving square of combination o...
You might not realize, but there's about twenty different ways of lacing your shoes... and we have one right here called the "doubel back"! Go to school showing off a different lacing than everyone else... with the "double back".
Need to know how to tie a Double Sheet Bend? This is a more secure version of the standard sheet bend, and an excellent way of joining two ropes of equal or different diameter. He's using flex rope, but it's a generally good way of securing two lines together.
Use a double crochet stitch to crochet half circle shapes. Use any type of yarn and crochet needle to complete this project. Half circles can be used as ear flaps for hats, additions to blankets, or serve as cute pockets on sweaters.
Whether you're a first day beginner or have been playing the drums for several years, learning the fundamentals of technique, rudiments and music reading is very important. In this installment from his video tutorial series on the fundamentals of snare drumming, Mark Wessels will show you how to play the double paradidle drum rudiment.
Whether you're a first day beginner or have been playing the drums for several years, learning the fundamentals of technique, rudiments and music reading is very important. In this installment from his video tutorial series on the fundamentals of snare drumming, Mark Wessels will teach you how to play the double stroke roll drum rudiment.
Take a look at this instructional video and learn how to perform the double leg. The key to this impressive looking trick is the spin once you lift off. Jogging to build up momentum is not necessary, but it helps.
Take a look at this instructional video and learn how to tie a double half hitch while stringing your tennis racket. Keep in mind that this knot should only used to finish off mains or crosses. Because of this, tension should not be pulled directly to it.
NFX shows you how to create secondary kicks, also known as doubling your kick drum using FL Studio (Fruity Loops).
The double leg stretch is an original pilates exercise that strengthens your abdominal muscles and your core. Reaching your arms and legs away from your torso challenges your core strength. To increase the core challenge, don't let your head and shoulders drop as your arms and legs reach away and pull in your abs to keep them as flat as possible. Watch this fitness how to video and you will be strengthening your body with pilates in no time.
The Turkish cast on is a great technique for avoiding the bulk of traditional seams. This video knitting tutorial shows how to knit a Turkish cast on, specifically for rounded doll accessories. Learn how to knit a Turkish cast on with double point needles by watching this instructional video.
Are you new to crocheting? Watch this video tutorial to learn how to do the chainless double crochet stitch. You will need some yarn and a crochet needle.
Improve you crocheting skills by learning different ribbing techniques. This how to video is a tutorial that will show you how to crochet a half double crochet ribbing. Watch and learn how to create decorative ribbing.
Crochet personal homemade gifts for everyone. This how to video shows you how to crochet a baby beanie cap with the half double crochet stitch. This crocheted baby beanie is sure to be the hit of the baby shower.
Improve you crocheting skills by creating fun shapes. This how to video is a tutorial that will show you how to crochet a curly cue using half double crochet stitches. Watch and see how simple it is to add even more personal touches to your work.
Add on to your crocheting skills by learning more stitches. This how to video is a crocheting tutorial that will show you how to do the half double crochet stitch. Crochet rows of them to create large handmade projects.
Made by poi experts, this video will introduce you to twirling double staffs if you want to venture beyond poi.
Adolfo explains how to use the double end bag. This will help your boxing by allowing you to learn the timing and coordination between your hand and target. You always have to be thinking offense and defense.
This free drum lesson includes four simple warm-up exercises you can use to develop your double bass drumming. All of the patterns are designed to sync up your feet with your hands, and to improve your overall footwork.
Here's a video tutorial from Needle 'n Thread for the double herringbone stitch, which is a variation of the herringbone stitch. Just like the regular herringbone, this stitch can be used as a decorative band or edging.
Demostration of how to make half-double Crochet (hdc)in USA or half Treble (htr) in UK. It is actualy the same stitch.
This "double sheet bend knot" is the same as the sheet bend, except that is has an extra turn to make it extra secure. Use this knot instead of the sheet bend if you have springy or slippery lines.
This episode of Halo 2 tricks teaches you how to get on top of the crane on Headlong using a double bounce.
This video shows you how to C walk (crip walk) - moves covered are the V, Stepback, V variation, Double V, Shuffle, Shuffle Kick, Shuffle Hop and Shuffle Spin.
Learn how to perform the Double Scissors move in order to increase ball control when playing soccer. Bring one foot around the ball, then the other, then kick the ball.
The six stroke roll is a fun rudiment that is a combination of the single and double stroke rolls. It starts with two double strokes, then adds two single strokes at half the tempo.
Double ka meeta is an Indian sweet bread. See how to make it in this video from Chef Sanjay.
Brad Davis explains how he uses a double G tuning on the top two strings of his guitar. Convenient for using the top strings as a bass line. Demonstrations in a bluegrass and blues style are performed.
Learn how to impress your friends with card tricks using the important move called the double lift. Close-up Magician and Comic Wayne Phelps teaches you one method to perform this frequently used card slight.
Double dutch is jumping rope with two ropes, with someone at either end and jumpers in the middle trying to jump both ropes. This video shows you how to jump rope with double dutch, and also teaches some popular rhythm-keeping chants.
In this tutorial, we learn how to crochet a left handed baby high top bootie. Throughout this design, you will be doing several different rounds for the sole, front of the bootie, and the rest of the sections. You will use a 10 foundation half double crochet in the sole of the bootie, followed by several more rounds. For the top of the toe, you will start with a magic circle then work in 8 half double crochets and pull shut, working two more half double crochets. Continue to finish the rounds...
Rick Steinow shows how to detect bedbugs using tape. Rick shows that obvious signs would be fecal matter and blood stains. If you're still unable to detect bed bugs, you can purchase a roll of double-sided carpet tape. You're also going to need a roll of painters tape. Apply a strip of the double-sided tape all the way around the mattress. Place another strip of tape around the head board. Make sure to add a strip of painters tape first when doing the headboard. You'll do this because the dou...
Lose your double chin with a simple neck exercise. Cynthia Rowland, anti-aging expert, demonstrates some exercises for strengthening the neck muscles, thereby reducing the double chin.
