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News: Augmented Reality Turns Rock Climbing into a Real-World Video Game

Augmented reality (AR) generally exists through the lens of our smartphones as information layered on top of what the camera sees, but it doesn't have to. Developer Jon Cheng worked with an indoor climbing facility in Somerville, Massachussetts, called Brooklyn Boulders, to turn rock climbing into a real-world video game where participants compete in a time trial to hit virtual markers on the wall.

How To: Make a Powerful PVC Air Cannon with Coaxial Piston Valve

The video featured in this article demonstrates the function and design of a powerful form of air cannon that operates using a purpose made valve that opens very rapidly. This allows for a massive amount of pressurized air to be released at once to throw a projectile many hundreds of yards. The design of the cannon also allows the barrel and the air chamber to occupy the same space, and so it is very compact and manageable which makes for an enjoyable shooting experience.

How To: Control the Music on Your Computer with Hand Gestures Using Flutter

Thanks to Flutter, it's now possible to control the music on your computer simply by making a few hand gestures. The app is available for both Windows and Mac and uses your computer's webcam to monitor your hand movements. Through the use of a few simple hand movements, you can play, pause, forward or replay your music. Flutter works with iTunes, Spotify, Quicktime, MPlayerX and a few other programs.

How to Lower your gun in Halo: Reach on the Xbox 360 to make machinima

If you all remembered back in the Halo 3 days, trying to lower your gun while filming machinima was a major pain because the button combination that you needed to required you to be some kind of circuis freak! But not anymore, with Halo: Reach, Bungie has realized that everyone wants to make machinima and have released a much easier to do button combination with Halo: Reach that will allow you to lower your gun. Unfortunately, you have to be offline in order to do it, all multiplayer and onli...

How To: Play "O Holy Night" by Mariah Carey on piano

In this video, we learn how to play "O Holy Night" by Mariah Carey on piano. This song is simple and you have to realize you are going to have to count your keys out differently. Sing along while you are playing so you can better understand. Start with a C chord, then play the F chord, following the guidelines of counting the keys. As you do this, you will continue to play out the different bars and then move on to move F chords and C chords. When you approach the chorus, take your time on th...

How To: Create a Barbie high ponytail hairstyle for Halloween

Every little girl wants to look like Barbie (not a particularly good thing, but bear with us here). And while all of us grow up and realize we come in all sizes and colors, it's always fun to reminisce a bit about our childhood and Barbie, one of our most beloved dolls. While we don't advocate you really look like Barbie by starving yourself and getting implants, it may be fun to dress up like her for Halloween.

How To: Decorate a credit card holder with duct tape

Most of the duct-tape aficionados out there who are watching this video are probably familiar with duct tapes incredible versatility as a material for making backpacks, tuxedos, and other accessories and clothing items. What many don't realize, however, is the extent of the decorative options made possible by the wide range of colors that duct tape is available in. This video teaches you how to make very cool designs out of colored duct tape and use them to decorate a credit card holder. This...

How To: Winterize your gas-powered tools & machines

Live in an area where you won't be needing your gas-powered tools for the winter? Such as your lawnmower, trimmer, and any other tools you need gas to operate. If you store them away for the winter and come back to use them during the spring time and realize your tools are acting funny, it may be because the gas you left in them has turned into a gel and has damaged the carburetor. You can do a number of things to protect your power tools from such a thing, you can dump all the gas out of the...

How To: Understand & use depth of field (DOF)

To understand and use depth of field you should realize that depth of field is the area behind and in front of your focusing point - the thing or object you are shooting. Depth of field is determined by apreture or f -stop, the shutter speed of your camera and the focal length of the lens. If you have the right combination of shutter speed and the f-stop, your picture will have the right exposure. If you change either the f-stop or the shutter, you need to remember to adjust the other! Differ...

How To: Get out of the friend zone & date your crush

You need to realize that you can waste a lot of time thinking about a crush when you could be saying "hey, let's go out, let's go study, etc." You don't want to play it safe and find out 20 years later that someone had a crush on you and you didn't do anything about it. Don't worry about being rejected. If you have a crush you should ask him or her out today and get it over with. You will either be rejected or not. Either way, you will know what he or she is thinking.

How To: Learn Calculus in 20 minutes

Did you sleep all semester in your Calculus class? Are you just waking up now to realize you have a test on Monday and that you're totally screwed? Well, luckily you can learn an entire semester worth of Calculus in just twenty minutes... or at leasts that's the hope.

How To: Build a steadycam for small hybrid digital cameras

Need to shoot a film for class and realized you don't have a Fisher Dolly and your cinematographer's hands are a little to shaky for what you would consider good filmmaking? Well, this video tutorial will show you how to make your very own steadycam. Check out how a nautilus design transforms into a more suitable steadycam; the gimbal is the key, and gimbals are very hard to find, especially the right one.

How To: Read yarn to examine its texture and consistency

Have you ever marveled at those knitting doyennes at Michael's who can just run up to the yarn aisle and speedily pick up some yarn because they know exactly what type of of yarn they need for their project without reading the yarn label? Most of us struggle with different yarn consistencies, scanning the label to get a feel for how the yarn would play out if knitted.

How To: Deal with nicotine addiction

In this tutorial, we learn how to overcome nicotine addiction. If you set a goal for yourself, such as singing, you will notice that nicotine effects how you sing and can cause you not to be able to accomplish goals. When you stop smoking, you are going to realize that you have a deep addiction and you will have a hard time getting off of it. Next, you will need to figure out the best way for you to get off of the cigarettes. Also, make sure you have a support group around you that will help ...

How To: Repair the agitator on a washing machine

If you're having a problem with the agitator on your washing machine, this video should be able to help. Many people may not realize it, but the agitator on a washing machine, is supposed to go back and forth and not just one way. This can easily be fixed by removing the agitator and replacing a couple of pieces. Check out the tutorial above to see what you need to do in order to repair the agitator on a washing machine. Enjoy!

How To: Apply epoxy sealer to your garage floor

Some people may not realize it, but epoxy can do wonders to a garage floor. Not only does it make it more sturdier, but it makes it much safer for people to work in by offering a slip free finish. This tutorial will show you how to apply an epoxy sealer to your garage floor today. It can be an easy project to complete, but requires time and dedication. So good luck and enjoy!

How To: Turn a picture into a sketch using Photoshop CS4

If you've ever wanted to sketch something from scratch and realize you don't have the time to take formal classes, then Photoshop might be what you need. In this helpful tutorial, you'll find out how to take your photos, or any other photo out there, and turn it into a beautiful masterpiece. So sit back and enjoy this tutorial on how to turn a picture into a sketch using Photoshop CS4.

How To: Determine the air amount in packing peanuts w/ acetone

How much air is actually inside a packing peanut? There is a simple experiment to conduct to see what is leftover. To begin, pour 200 ml of acetone into a glass container and add approximately 1800 ml of packing peanuts. Stir with a wooden spoon to dissolve. The video's author starts with the 1800 ml and realizes that that isn't enough. He then keeps adding until he has added an entire large bucket to the original 200 ml of acetone. After all are dissolved, all that is left in the glass conta...

How To: Evaluate combinations of functions from graphs

YouTube user NotesCollegeAlgebra teaches you how to evaluate combinations of functions from graphs. You start off with a graph and some functions. (f+g)(-3), (g/f)(0) and (fg)(-6). You start looking at the graph and the first line and you get (f+g)(-3)=f(-3)+g(-3)=3+1=4. (g/f)(0)=g(0)/f(0)=2/-3=-2/3. (fg)(-6)=f(-6)g(-6)=(-3). But then when you want to find out g(-6) you realize -6 is not in g's domain. So the answer to the last equation is that it doesn't exist.

How To: Pick-up girls by acting cool & like a natural flirt

Learn to pick up girls by acting cool and being a natural flirt. You can learn how to be totally relaxed, confident and natural when you approach girls. Don't over-analyze every situation, sometimes you just have to not care and let it be, that way you'll just come across as a cool guy. You have to realize that some interactions will be great some won't be and you shouldn't care because now you've found your inner self. Just remember that it doesn't matter if you get a phone number or not, th...

How To: Get a woman to feel chemistry with you

David Wygant discusses how to get a woman to feel chemistry with you. First, realize that no one can create chemistry and to have something really special with someone, you need to have chemistry. Everyone is attracted to different kinds of people. Chemistry and attraction is a numbers game. You can create your odds by creating energy with people. Observe women, listen to what they have to say and converse with them accordingly. These techniques may unlock a woman's attraction for you. Howeve...