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How To: Simplify radicals & square roots using exponent rules

See how to apply exponent rules to simplify radicals or square roots with this free video math lesson from Internet pedagogical superstar Simon Khan. 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, it's easier than ever to follo...

How To: Build origami modules for 3D origami

This video demonstrates how to make 3D Origami. If you want to make some 3D origami animals, you need this video as first step. You will need a normal sheet of paper (size A4). One rectangle is a 1/32 of this. The fastest method is to cut them out with a knife. You will use these to fold triangles, make a "basement" and stabilize them to make rows. This is the perfect primer video for 3D origami. Learn how to fold 3D origami modules.

How To: Fold origami love knots/crane eggs

You've heard about origami cranes before - they are, after all, the primer for all other origami projects. But what about crane eggs? That's right, crane (pre) babies! Sort of. Check out this video to learn how to fold crane eggs/love knots that are cute for putting in jars and gifting to friends.

How To: Use the Flash Memory Toolkit suite of diagnostic tools

Looking for a primer on how to use "FlashMemoryToolkit" to analyze your flash memory-based devices? This clip will teach you everything you'll need to know. It's easy! So easy, in fact, that this home-computing how-to from the folks at Britec can present a complete overview of the process in just over two minutes. For more information, including detailed, step-by-step instructions, take a look.

How To: Multiply radicals in algebra

Looking for a primer on how to multiply two or more radicals? 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 for that next big test).

How To: Build a sugar rocket motor

Did you know that you can make a rocket out of stuff you might already have around the house? In this tutorial, you'll see how to make a candy rocket using PVC pipes, sorbitol (a sugar substitute) and other fairly common household objects. With just a little work, your sugar rocket will be ready to blast off into space. Sweet!

How To: Create Lea Michele's 2010 Emmys makeup look

Lea Michele, who plays perfectionist and super-talented singer Rachel Berry on "Glee," is quite unlike her school girl outfit-loving television alter ego. In fact, on the red carpet she's a big fan of sultry, sirenish makeup looks with winged liner, red lips, and big, voluminous hair.

How To: Apply flattering makeup for TV news anchors

Who better to learn how to apply TV news makeup from than an actual TV news anchor? Emily Noel is a famous TV news anchor with several years in the biz, and she's here with this makeup tutorial to show you exactly how to get that flawless, shine-free TV anchor look you see in most news broadcasts.

How To: Set up a new personal email account on a BlackBerry 6 smartphone

Looking for a quick primer on how to create a new email account on a BlackBerry phone running version 6 of the BlackBerry OS? This clip will teach you everything you'll need to know. Whether you're the proud owner of a BlackBerry smartphone or are merely considering picking one up, you're sure to be well served by this official video guide from the folks at Blackberry. For detailed information, including step-by-step instructions, take a look.