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How To: Pythagorean Theorem

What Is Pythagorean Theorem? Pythagorean Theorem is an equation discovered by a man named Pythagoras. It can be used to determine whether or not a triangle is a right triangle and find missing lengths of a triangle. The equation is: Parts of a Triangle

How To: 7 Great Music Apps for Windows 8

Everyone listens to music. I've got over 3,000 songs in my iTunes library, but am always looking for more, and I'm sure you are too. You can never have enough tunes to rock out to, right? If you're using Windows 8 like I currently am, these are some of the best apps in the Windows Store right now that will help you find new jams for your collection.

How To: Your Guide to Finding Free Creative Commons Images and Other Media Online

Creative Commons is awesome—really. If an image, video, or audio file is tagged with a CC license, that means you can use it as long as you give appropriate credit to the owner. For bloggers with no money for pricey stock media, it's a godsend. When you license your own media under CC, you can choose how you want it to be used by others and whether or not it can be used commercially.

How To: Calculate the circumference of a circle

This video shows how to calculate the circumference of a given circle. The video first describes the circumference or perimeter of a circle as the distance around the outside of a circle. To find the circumference we need either the radius or the diameter of the circle. When you know the diameter of the circle, the formula to find the circumference denoted by 'C' is 'pi' times the diameter, where 'd' is the diameter and 'pi' is a constant, the approximate value being 3.14. And when you are gi...

How To: Use implicit differentiation

Taking this formula 9x²+y²=9 your instructor shows you how to find the solution for the variable y. Finding a second derivative is no more difficult that finding the first derivative, you only have to do the problem equation through twice. The derivative of 9x² will be 18, of y² will be 2y [this is the same as 2(y), 2 x y or 2 * y]. The problem now goes -18x + 2y dy/dx=0. This equation is solved for dy/dx making the next step in the problem go -18x 18x+2y dy/dx=0-18x, 2y dy/dx= -18x. The next...

How To: Solve a linear system by elimination method

This video is about using the elimination method to solve a linear system. The lady presenting this video says that elimination method means that one of the two variables has to be eliminated while adding up the two linear equations. She then explains the example equations 6x-2y=66 and 5y=-29-2x. She asks you to first line up x and y. So the second equation is rewritten as 2x+5y=-29. Then she says that, to eliminate a variable, we should have their variables equal in value but of opposite sig...

How To: Obey the rules of the road when driving in California

The California Department of Motor Vehicles (DMV) created this "Rules of the Road" video series specifically to help remind drivers about the requirements and responsibilities of being a safe driver. A CA DMV examiner explains rules of the road including: lane markings, road signs, speed limits, intersection rules, lane changes, turns, rights-of-way, parking, passing and much more.

How To: Get on TV at a football game

You look up the screen and see those smiling faces, those excited fans and think, that should be me. Well, it can! Anyone can get a little camera time at football game. You can let it be up to fate or you can get proactive and improve your chances of the camera finding you.

How To: Lengthen the life of your car

Too many people just drive their cars for a few years and then replace them. When treated right, cars can keep on running for decades. You may not be able to keep your car running forever, but you can definitely extend its life.

How To: Make an Arched Roof in Minecraft

This week, I will be covering one of my favorite styles of roofing in Minecraft—the arched roof. This is basically just a roof that starts out steep and slowly slopes down until it meets in the center. I think this type of roof looks great in Elvish-styled buildings and can make any build look very elegant and tall.

News: TGF's Entry for the Subterranean Challenge

I like exploring and building underground in Minecraft. Finding a ravine, or even better one with an abandoned mineshaft. Exploring caves, and discovering dungeons. So this challenge is right up my alley. Right from the warp point to the challenge I notice the way some of the sand was sunken in zig zag patterns. I knew There had to be something down there so I started excavating. I quickly found a series of caves and the story of my build unfolded as I explored. I won't go into the history of...

News: Come visit the city of mysteries

Okay folks, I've finally finished my underground ancient city. Actually it's more like, I need to move on to other things and really should stop obsessing over this thing already. You can find it at the warp location "woodcity" - which is funny because there is not a stick of wood in it! That's the idea: the city is so very, very old that nothing but stone (and some conveniently located, er, naturally burning torches and lava and ice deposits) remains to be seen today. All is enveloped in the...

Edit on a Dime: The Week Ahead

Happy Monday to all of you out there, thankfully the Consumer Electronics Show is now behind us. It feels quite possible that a cold was caught by yours truly simply by reading the numerous reports of germs being spread from booth to booth on the show floor. I'll do my best to soldier on, in the meantime if you haven't already, you can experience the convention vicariously by reading my 'Best of CES' post here.