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How To: Construct a motion detector alarm system

Check out this video tutorial to see how to construct an alarm system, that's based on the principle of motion detectors, which work by touch. It's very useful to catch unpleasant visitors red-handed. So make sure your chocolate bar never gets snagged again, catch the bandits with a motion detector alarm! Or just keep you kids away from the birthday present closet where peeping is not allowed.

How To: Create your own original pop-up origami

This video will guide you toward creating a pop-up bird. You will be shown how to fold the pop-up base with some suggestions for finishing the model. The final model will be of your own design. It will also examine some of the things you can change to alter the pop-up mechanism.

How To: Build an application on Android for mobile devices

This video tutorial is about Android, and no it's not a robotic creature, it's a software platform and operating system form mobile phones and PDAs. The Android system is based on Linux and was developed by Google and the Open Handset Alliance. Code is managed in the Java language, but can be written in C also, although C is not officially supported. A lot of the new cell phone and other mobile devices will be running off of Android, so know how to use it.

How To: Power off stall and recover a small plane

In this AeroCast episode, Anthony Bottini discusses the Power Off Stall maneuver as performed in the Piper Warrior (PA-28-161), referencing the procedures and standards outlined in the UND Aerospace Warrior Standardization Manual. All performance tolerances are based on the performance standards set forth by the FAA Private Pilot Practical Test Standards. Power Off Stall practice is vital in increasing a pilot’s proficiency in regards to stall recognition and stall recovery techniques during ...

How To: Program a PHP forum

This video covers creating and programming a a PHP-based web forum. Topics include basic layout, login and logout, Admin start, creating categories and subcategories, creating topics, and more...

How To: Install a stage 1 speaker package in a BMW X5

This video series goes over installing a stage 1 speaker package in a '00-'06 BMW X5 (E53). This consists of front and rear speakers (all 10 drivers in the car), rear mid base and rear mid range. Video one starts with the rear door panel removal, two covers front door panel removal - midbass and tweeter installation, three covers installing the rear door panels and the last video covers midrange installation.

How To: Shut off your alarm clock with a light phaser

We'll base the project around a digital clock radio and a light gun for gaming; huge selections of both of these are available inexpensively second-hand, with many beautiful and well-designed examples. To enable our FPSI (First Person Shooter Interface), we'll outfit the gun with five tilt sensors, arranged at different angles on a small circuit board. A cable tethers the gun to the clock and carries your tilt and trigger signals to the clock's time and alarm control button contacts.

How To: Plant cactus in containers

Cactus can do very well in containers if attention is paid to several things. One, use terracotta, it breathes well. Also, make sure there is a hole in the bottom because the soil shouldn't be sitting in water. And importantly use a Cactus soil mix, a mix that has a lot of sand, a lot of perlite. Although most plants don't thrive in mixes with a lot of sand, because it dries too fast, Cactus requires this condition. In fact, over watering is the number one way to kill a Cactus. To place the C...

How To: Make healthy guacamole dip appetizer

Guacamole is a healthy and delicious appetizer, snack, or spread. Learn to choose and cut avocados, then combine them with a lime-based marinade for a delightful balance of flavor. Guacamole is only as good as the avocado that you buy for it. You really want your avocados soft but not too mushy. So that's how you would shop for an avocado. The next thing that you would do is take the pit out. If you're finding that the pits are really not coming out of the avocado, you have an avocado that is...

How To: Prepare hollandaise sauce

Making hollandaise sauce isn't as difficult as you may think. Check out this simple recipe for creamy hollandaise sauce. Hollandaise sauce has withstood the test of time. Historians traced its first appearance to a cookbook that's nearly 400 years old. Despite import and export worldwide, the recipe has remained much the same. We use hollandaise sauce on meat and vegetables but the most common destination is on eggs benedict. Tinkering with this recipe is simple, as you flavor to your own tas...

News: A Theory of Holographic Music Synthesis

Are you ready for crazy, next-level music technology? I just completed a pretty fun introductory write-up on my new instrument called the Dub Cadet over at instructables.com. This is the first installment of a 3-Part series to explain how to build your own Dub Cadet or personally amalgamated hybrid.

News: 180 Unit Sonobe Buckyball

I wondered how silly you could get with sonobe, and had a bash at a buckyball, which is a fullerene (technically a truncated isocahedron; you can see a simple model here). It's twelve pentagons—each surrounded by 5 hexagons (20 in total)—making a football shape in England or a soccer ball shape in the USA.

News: Rotating Mirror Stellated Octahedron

The initial idea for this project was to use magnets in the tips of the stellated octahedron and the intersections of the metal rings for either suspension or even a sort of weightless rotation. This turned out to be a bit too ambitious considering I'm working with found mirror and hot glue. So instead, I scrapped the magnets and went with simply mounting it on a skateboard bearing so it can freely rotate and not be bound to the base.

Adrenaline Rush vs. Death: The Science of Risk

For some, adrenaline beats out every time. Though I've seen countless videos of base jumping, the sport never ceases to amaze. The video below, Last Walk Around Mirror Lake – Boom Bip (Boards of Canada Remix), is no exception to the rule. Shot in Norway, FroschYankee's footage is nothing short of stunning. *For more info, check out Adrenaline Rush (The Science of Risk), the film which this clip was featured in.

News: Five-Arm Turntable Has Got It on Lock

If you have a fear of needles, you may want to sit this one out. Billed as an "analog answer for the digitalized DJ," this five-arm turntable plays an ode to the lock groove. What's a lock groove? Glad you asked. Whereas normal grooves lead the stylus in toward the label of the record, lock or "locked" grooves form a perfect circuit, looping around on themselves forever and ever. Throw in a few extra tone arms as London-based artist Yuri Suzuki has done and you've got yourself a full-featured...

How To: Double Uni Knot

This shows how to tie a Double Uni Knot. The Double Uni Knot is used to join lines of similar of different diameters. It is based on the same system as a normal "single" uni knot. So if you learn the system you will be able to join lines or attach the line to end tackle with the same "knot system". Double Uni Knot.

How To: Retouch wedding portraits in PhotoTune for Photoshop

Learn how to quickly color correct a difficult outdoor wedding portrait in PhotoTune. PhotoTune is a plug-in for Photoshop that has it's own visual based interface for image retouching. In this PhotoTune Photoshop plugin tutorial you will learn how to adjust skin tone and white balance in a wedding portrait. Retouch wedding portraits in PhotoTune for Photoshop.

How To: Sharpen a dovetail saw

Furniture maker Chris Gochnour demonstrates how to revive a dull dovetail saw or turn a mediocre saw into a high-performance tool. In this video the Salt Lake City-based woodworker demonstrates his five-step sharpening process. Sharpen a dovetail saw.

How To: Properly apply mascara

Apply two or three coats of mascara, letting dry between each application. On top lashes, always brush the underside, from base to tip. On bottom lashes, brush only the topside. Properly apply mascara.

How To: Fold a Simple Origami Mouse

This tutorial teaches you how to fold an origami mouse with an ordinary sheet of paper. This model is suitable for beginners and children. Origami is great for small kids as the only material needed is paper, no scissors or glue that could do harm!

News: DIY Origami Christmas Tree

This is how my version of an origami Christmas tree turned out based on the instructions I posted awhile back. Cory also made a version from white glossy paper, which looks great. I opted for the green and brown look, but it wasn't easy.

How To: Engage in a Guerrilla Marketing War

Warfare strategies have become an inspiration to different marketing professionals, many of them drawing influence from Sun Tzu’s Art of War. This ancient Chinese text provided treaties on how to effectively manage resources, tactical positioning, and timing attacks. It also states that “..if you know your enemies and know yourself, you can win a hundred battles without a single loss”, a basic concept in which you have to always watch your competitor to anticipate his next move.

How To: Do an Alice in Wonderland cheshire cat makeup look

In order to create a dramatic Alice in Wonderland Cheshire Cat inspired makeup look, you will need the following: a shocking pink base, a neon pink shadow, a deep purple eye shadow, light brow bone color, white eyeliner, lip liner, lipstick, pink blush, lip gloss, pink shadow, liquid liner, mascara, and false eyelashes.

How To: Create a blue ocean eyeshadow look

This video demonstrates how to create an ocean inspired makeup look. Apply primer to the eyes, first, as a base. Darken the base with a dark neutral powder. Brush it on with a eye shadow brush. Add a little green eye shadow to the inner 1/3 of the upper lid. Use a violet blue eye shadow to fill in the rest of the lid. Add a lighter blue to the middle 2/3 of the eyelid. Add your neutral brow bone color to fill in the upper 1/3 of the eye. Brush a little blue eyeliner underneath the eye.

How To: Make a homemade giftbasket

Learn how to make your homemade gift basket exciting by creating plumes with Debra Paulk. This method for adding spice to your gift basket is simple, cheap, and makes your gift basket look professionally made. These baskets are great for birthdays, a loved one, someone in the hospital, or any special occasion. Debra starts by rolling out several feet of cellophane, and folding the cellophane into a square, then folding the square in to a triangle. She then cuts the crease in the triangle, cre...

How To: Create "fairy eyes" using silver eyeshadows

Create amazing fairy eyes using silver eyeshadow in easy steps! Start with a base all over your lid and eye area. Now add a little to your lower lash line. You will then apply a highlight with brush to your brow bone With a new smaller brush use a light shimmery silver to apply to the inner part of your eyelid. Apply about 1/3 of the way in. Apply a light lavender color to the rest of your eyelid. Using a darker purple apply to the outer corner of your lid, also pulling it into the crease are...

How To: Get a smoky burgundy look with your eye makeup

To do a different kind of smoky burgundy eyes look using Mac (or whatever you may have) start with a eyeliner base. It would be recommended to use a secondary base. To blend use a 217 brush up to the crease going back and forth. To get intensity on lash line get close to the lashes. It doesn't need to be neat because it will later be smudged. Using a 219 brush work it into the lashes and blend it out. Whip the brush off to fade the liner out. Using a 239 then take your burgundy and work it up...

How To: Provide great customer service on eBay

New to eBay? Don't worry, setting up an account and buying and selling doesn't take that much effort at all. Everyone who has an Internet connection has at one point come across eBay, to find the perfect gift for their loved ones, to find the cheapest deals on plasma televisions and computers, or to get rid of their dusty, old record album collection in their web store.