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How To: Find how many toothpicks will be needed to form the nth figure in a sequence

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. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to employ inductive reasoning to determine the number of toothpicks you'll require to generate the nth (e.g., the 50th) figure in a sequence of figures.

How To: Tie a one-handed bowline knot quickly

When climbing one of the most crucial knots to have in your arsenal is the Bowline Knot. But sometimes you may find yourself in a situation that requires you to tie one quickly. In this video you'll learn how to tie one quickly withn one hand so that way you can really leave yourself hanging!

How To: Do nymph fly fishing

Nymph fly fishing is pretty tough and requires some key elements to make it successful. With this video you'll learn how much weight you'll need to use for your lure, how to cast and lure properly, as well as what sort of equipment you should have with you.

How To: Prevent "Friend Check-Ins" when using Facebook

Underwhelmed by Facebook's new Places geo-tracking feature? Disable it. It's easy. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to deal with the Places feature, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Avoid being "checked in" by your friends and acquaintances on Facebook

In this quick clip, you'll learn how to disable Facebook's location-tracking "feature," Places. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to deal with the Places feature, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Adjust your Facebook privacy settings to enable or disable Facebook Places

In this clip, you'll see how to change your privacy settings to turn Facebook's geo-tracking feature, Places, either on or off. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to deal with the Places feature, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Make a ninja origami star

If you're interested in making a ninja star from scratch using non fatal equipment, then check out this tutorial. It's a very simple project that requires a regular square piece of paper and the right folding lines and it should be simple. So check it out, pay attention, and enjoy!

How To: Properly balance your RC's wheels

In this next video tutorial, you'll be finding out how to properly balance the wheels on your RC. Balancing them is important, just like a regular car, in making sure they work properly, don't wear out so soon, and will perform much better. It's not difficult to do and requires a few items that you will need. So good luck, pay attention, and enjoy!

How To: Secure your public search profile on Facebook

Looking for a guide on how to secure your public Facebook profile? This clip will show you how it's done. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to perform a particular task on Facebook, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Stop another user from sending you invites on Facebook

Want to stop another user from sending you invites or just block them altogether? This clip will show you how it's done. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to perform a particular task on Facebook, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Change your Facebook privacy settings to keep your posts private

Protect your Facebook posts! This clip will show you how it's done. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to perform a particular task on Facebook, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Adjust news feed privacy settings on Facebook

Want to change your Facebook news feed privacy settings? This clip will show you how it's done. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to perform a particular task on Facebook, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Keep tabs on your friends with social plugins on Facebook

Want to know how to use social plugins on Facebook? This clip will show you how it's done. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to perform a particular task on Facebook, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Delete a Facebook account forever

Want to permanently delete your Facebook account? This clip will show you how it's done. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to perform a particular task on Facebook, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Protect your Facebook profile by changing your privacy settings

Want to change your Facebook privacy settings? This clip will show you how it's done. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to perform a particular task on Facebook, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Create a Facebook account from scratch

Want to create a Facebook account? This guide will teach you the ropes. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to perform a particular task on Facebook, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, and to get started making your own Facebook page, take a look.

How To: Poke someone you know on Twitter

Want to give a friend a poke? This clip will show you how it's done. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to perform a particular task on Facebook, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Create and use friend lists on Facebook

Interested in making friend lists on Facebook? This clip will show you how it's done. Whether you're completely new to the Facebook's popular social networking site or simply require a small amount of clarification on how to perform a particular task on Facebook, you're sure to benefit from this helpful video guide. For more information, including detailed, step-by-step instructions, take a look.

How To: Remove anodize from aluminum and polish it

This next tutorial can be a bit dangerous and requires that you take full precaution when performing this. With that out of the way, in this video, you'll be finding out how to remove the anodize from aluminum and then polish it for a nice clean, sparkling look. It's pretty easy to follow and can lead to a nice look for your RC vehicle, so check out what you need to do and good luck!

How To: Create smooth samples with the loop function on a CDJ

See how to use the loop function on a CDJ CD turntable. While DJing might appear simple to the untrained eye, truly mastering the turntables requires as much time and dedication as mastering any other instrument. Fortunately, the internet is awash in free video DJing lessons like this one, which make the learning process easier than it's ever been. For more information, including detailed, step-by-step instructions, take a look.

How To: Use crossfades to segue between tracks when DJing

Learn how to create smooth transitions between tracks with crossfades when on the decks. While DJing might appear simple to the untrained eye, truly mastering the turntables requires as much time and dedication as mastering any other instrument. Fortunately, the internet is awash in free video DJing lessons like this one, which make the learning process easier than it's ever been. For more information, including detailed, step-by-step instructions, take a look.

How To: Glue and clamp woodworking projects

In this woodworking tutorial, you'll be finding out how to properly glue and clamp woodworking projects. This is an important tutorial since some projects require the use of glue more than nails or screws. So it's important to know what to exactly do when working with both products. So sit back and enjoy this great tutorial!

How To: Easily swing dance at home

Swing dance is an energetic and fast paced dance that's sure to get your blood flowing. When doing it, the leader will always start to the left. It's something that many can follow, but requires practice. So check out this tutorial from professional instructor Nina Ortega and see if you have what it takes to swing. Enjoy!

How To: Perform dance steps for the waltz

The waltz is a very pretty and fluid dance that requires dance partners to be very close. It's one that can be difficult for some, but for others, is easy to learn with no problems. In this tutorial, you'll find out how to perform dance steps for the waltz with the help of Nina Ortega. It's easy to follow and is performed in a three-four music rythm, so good luck, practice, and enjoy!