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How To: Scream for metal and rock vocals

Any classically trained vocalist would advise you not to EVER scream during a song. That's because any kind of screaming harms your vocal chords and could lead to a raspy, damaged voice later on in life. However, as many rock and hard metal songs require wailing of some sort, this video will teach you how to scream should you need to.

How To: Photograph the iris of an eye

Photographing an eye is now easy with digital cameras. Dr. Roberto Kaplan leads you through the simple steps of using a digital still camera or video. Then cropping and scaling the size in a photo program. Learn how to photograph the iris for medical purposes (records for examinations, or identification records for children).

How To: Make a reindeer Christmas hat

When the weather outside is frightful, we have a holiday hat your kids will actually want to wear. This video shows how to make a beautiful reindeer hat. Your child will lead the pack in true Rudolph style with this cap whose fanciful antlers are made from a pair of basic knit gloves. This is a fun Christmas craft project! Make it with your kids at their holiday party.

How To: Solder wires like a professional

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. Melt the solder to connect wires for switches and permanent circuits. Heat the surface before you put the solder on it. Don't drip the solder for it is too much and not necessary. Make sure you wash hands and have a ventilated room because solder sometimes has lead in it.

How To: Hit a Golf Ball Out of a Sand Trap

Sand traps are one of the most infuriating parts of a golf course, with only water traps taking the lead as most annoying. But, with the help of professional golfer Dan Davis of Thousand Hills, sand traps will no longer be a problem for you. Check out the video to get some pro tips on hitting that golfball out of the sand and back on to the green.

How To: Perform an X-Step in cardio

Increase agility and workout your heart. Learn how to perform an X-Step in cardio in this exercise tutorial. When performing the X-Step you should straddle step to start, lead with right foot, and increase speed to intensify workout. With this how to video you can perform the X-Step in your cardio workout.

How To: Open up the muscle tension in hips with yoga

Open your life by opening your hips. Tension in your hips may lead to low back pain and an overall tightness in the way we walk and the way we approach each day. Opening your hip area will reduce the stress in your body, improve your balance, and create a lightness that you can take into your day. Watch this video yoga tutorial and learn some moves to open up your hips.

How To: Wire a coaxial plug

Coaxial cables are typically used for home video equipment, particularly TV AV (aerial and video) leads. Take a look at this instructional video and learn how to wire a coaxial plug. The coax plug consists of a body, a pin, a collett, a braid, and a clamp.

How To: Overhaul a car battery charger

If you have an older battery charger and it works apart from having worn out terminals or frayed wiring, don't throw it away. Overhaul it with new wires, a plug and clip leads. This costs about $15 at the most instead of the $50 for a new unit. So watch this automotive repair video and learn how to overhaul a car battery charger and keep your car running for less!

How To: Track fingers with the Wii remote

Using an IR led array and some reflective tape, you can track fingers in thin air using the Wii Remote by Johnny Chung Lee from Carnegie Mellon University. The grid software is a custom program written using a C# wiimote library and DirectX. Take a look at this instructional video and learn how to perfom this with the Wii remote.

How To: Make double-walled and donut pieces

Watch this ceramics video tutorial to learn how to make double-walled and donut pieces, especially teapots. This technique is trite, but can lead to better ideas. The detailed instructions in this how-to video are best for intermediate potters and will have you making nice double-walled and donut pottery in no time.

How To: Dance basic salsa steps & do right turns

This dance how to video will review the basic steps of the salsa (front-back) step one. We also teach you how to perform a simple right turn, and for the guys, how to lead a right turn when in open position. Hopefully this will get you started dancing salsa!

How To: Create an earth mother makeup look

"Green is the new black" is this leading earth-mother-lady's mantra. She cares just as much about what she puts on her body as she puts in it, and stands behind the all-natural products that are as easy on her skin as they are on the environment. And, oh, does it show!