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How To: Make watermarks in paper for security

Don't fret too much if your watermark is barely noticeable when you're finished with this project - the less obvious it is, the better a job you've done. Watermarkers are present in many types of paper, especially the monetary kind. If you hold up a ten dollar bill you'll see a watermark of Thomas Jefferson's face on the right, proving the bill is real.

How To: Polish the guts of a paintball gun with a brillo pad

KRASHARPSHOOTER gives a detailed example on how to better improve performance from the Tippman paintball marker. Some of the advantages to following this method is that it allows the internals to cycle smoothly. He shows us, using a very simple method. The method that he follows in a step by step process in his video is start by taking a Brillo pad and dipping it into water. After that while soap is coming out keep rubbing the pad back and forth on the internal of the paintball marker. He sho...

How To: Make a duct tape coin purse

Is there anything duct tape can't do? You can use it to temporarily repair leaking pipes, patch up broken furniture, build seaworthy boats (as proven on "Mythbusters") and so much more. But did you know you can also use it to make cheap fashion accessories? Indeed you can, and in this video tutorial a young lady shows you how to make a coin purse out of duct tape.

How To: Max out your MPG to get great mileage

Systm is the Do It Yourself show designed for the common geek who wants to quickly and easily learn how to dive into the latest and hottest tech projects. We will help you avoid pitfalls and get your project up and running fast. Search Systm on WonderHowTo for more DIY episodes from this Revision3 show.

How To: Modify gearing on a Traxxas Rustler R/C vehicle

If you're fond of remote-controlled vehicles, you might appreciate this video tutorial on how to modify gearing on a Traxxas Rustler R/C vehicle. The Traxxas Rustler is a proven favorite with a formula for rugged fun that nothing else can touch. The Rustler blows the doors off the competition with more power, smoother control, better grip, and performance that makes it one of the fastest Ready-To-Race electric trucks available. Modifying the gears is an easy way to boost top speed. You can in...

How To: Hunt the elusive hairy and yeti-like beast called Sasquatch (or Bigfoot)

Much like UFOs and chupacabras, the Sasquatch has yet to officially take its name out of the fictional section, but that doesn't mean Bigfoot won't transform from fiction to reality someday. In fact, with the hunting and tracking skills outlined in this video, you may just be the one who slams the yeti-like Sasquatch into the science books. Learn to track the elusive Bigfoot creature like an expert!

How To: Play "Tracks Of My Tears" by Smokey Robinson on guitar

Want to impress your friends by whipping out your guitar and strumming some of their favorite tunes the next time you are at a party? This guitar lesson teaches you how to play the Smokey Robinson song "Tracks Of My Tears." Once you get a hang of these popular guitar chords and tunes, you can start incorporating them into your own songs. With this lesson and a bit of practice you will be able to play "Tracks Of My Tears" by Smokey Robinson on the guitar. And who knows, maybe soon you can play...

How To: It's Not Just Your Camera & Mic — Here's All the Crazy Ways Your Phone Could Be Used to Spy on You

As you're surely aware, your phone can be used against you. Thanks to our cameras and microphones, a clever hacker can obtain access to your device and invade your privacy. But spying isn't limited to just these two sensors — gyroscopes, proximity sensors, QR codes, and even ads can be used to paint a very clear picture about who you are and what you're currently doing.

How To: Change These Settings Now to Protect Your Data in Case Your Phone Is Stolen

As smartphone users, we live in dangerous times. The value of phones continues to rise, making them prime targets for thieves. In 2015, the FCC estimated that one million phones are stolen each year, and with several devices starting to hit the $1,000 mark now, these numbers are sure to rise. But what do you do if you fall victim to phone theft?

How To: Set Apple Music Songs as Alarm Sounds on Your iPhone So You Don't Hit Snooze Anymore

Don't like how Apple's default Radar ringtone — or any other tone — wakes you up in the morning? Then don't use them as your alarm sound. Instead, use your favorite song to get you out of bed. Whether you enjoy an acoustic tune or a heavy, energetic jam, you can choose any Apple Music song you want, or any track in your personal Music library, to get you going each day.

How To: Use psychic dice trick to punk the drunk

In this video, we learn how to use psychic dice trick to punk the drunk. First, place the dice in a clear glass, then tell the other person to look at the numbers on the dice through the bottom of the cup. Next, guess that number they are thinking of, and then look at the die to prove it. When finished, you will get a drink and drink free all night! Make sure you are using psychic dice to do this trick. If you don't have these specific die, then you won't be able to pull this trick off correc...

How To: Create ghosts in Blender with difference keying

Use nodes to compute the difference between two images, usually a matte or background shot and then the same shot with actors in the set. This technique was used in the film "Death Becomes Her" starring Meryl Streep, Goldie Hawn, and Bruce Willis. Use this technique to create ghosts, glass people, or to uncover watermarks and prove video ownership. Whether you're new to the Blender Foundation's popular 3D modeling program or a seasoned graphic artist just interested in better acquainting your...

How To: Find orthagonal complements in linear algebra

Learn how to prove that the orthogonal complement of the orthogonal complement of V is V! 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). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn ho...

How To: Do self-inducing labor techniques

Does that baby just not want to budge? If you are towards the end of your pregnancy, or long overdue and nothing seems to be working, check out this tutorial. In this video you will receive tips from Dr. Lisa Gibbons, an OB/GYN at Cascadia Women's Clinic in Vancouver, Washington. Dr. Gibbons will share with you all of her expertise on how to make that baby come faster and give your body a break.

How To: Use Skype on your Blackberry

Skype continues to be one of the most convenient and widely used methods of keeping in touch with people all over the world. For those of you on the go, having Skype on your Blackberry could prove to be an invaluable communication resource.

How To: Download music to a jailbroken iPhone or iPod Touch

TysiPhonehelp will show you how you can download music directly to an iPhone or iPod Touch for free. He states that he will be showing an example on how to do this using MewSeek Pro. Next he will walk you through the steps it takes in order to make this successful. Last he proves that this actually does work by playing downloaded music. If you follow the steps in this video, you should also be able to download music to an iPhone or iPod Touch.

How To: Use inductive reasoning

In this tutorial we learn how to use inductive reasoning. Start out with your equation that is giving you your statement. You need to prove whether this is true or not by figuring out the equation. Look at the different angles to see if they are a linear pair and then see if they are the same. Compare them to see if they add up to 180 degrees and use your mathematical logic. Once you understand the backbone to doing this type of math and what the exceptions are, then you will be able to figur...

How To: Negotiate salary terms

In this tutorial, we learn how to negotiate salary terms. If you have just gotten a new job but the salary is not what you were hoping for, there is a way to negotiate the terms. If you have a great benefit package and salary, you will have the career benefits that you want to have. Talk to your boss or the appropriate person to see what you can do to get a higher pay rate at your new job. See if there is a way you can prove your work to get a salary increase. Negotiate with them to see what ...

How To: Understand the rule of vertically opposite angles

In this video we learn how to understand the Rule of Vertically Opposite Angles. This says that when two straight lines cross it produces vertically crossed lines that must have congruent angles. Because the lines are straight this has to happen. Remembering the rule "supplementary" you will be able to calculate the angle of A and B in the equation. Prove what each of the angles are using the different rules and then move onto the other two angles. Angle C can be figured out by knowing that i...