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How To: This DIY Arduino Bicycle Safety System Includes Turn Signals, Brake Lights, Strobe, and More!

As dedicated bicyclists are well aware, riding can be very dangerous. Now that daylights savings time has ended in the United States, darkness appears quicker, and the night is especially dangerous for cyclists because of the low visibility that drivers have. Not only is darkness a danger, but also fog, blizzards, and heavy rain—all wreaking havoc on the vision. To combat this, bikers attach reflectors: clear front reflectors, red rear reflectors, amber pedal reflectors, and clear side reflec...

How To: Unlock a Bathroom Door

How to unlock a bathroom / bedroom door that has a privacy door handle set installed. Have you ever been in that situation where you have accidently locked yourself out of your bathroom or bedroom, or your toddler has accidently locked themselves in the bathroom / bedroom and you can't get them out! The first thing to do is not panic! Don't call the locksmith and don't reach for the closest sledge hammer and commence smashing the door in. it really is easy to open the door when you know how.I...

News: This Real-Life Star Wars Hover Bike Could Be the Future of Personal Transportation

Admit it—at some point or another, you've wished that you had your own personal hovercraft. Don't worry, we've all been there. Well, a company called Aerofex wants to make a hovercraft that's way more than your standard leaf-blower-powered one, taking a queue from the swoop and speeder bikes from the Star Wars franchise, building their own sort of repulsorlift. This hover bike may not be quite as fast as the ones from Star Wars, but if the company has its way, it could be on sale by the end o...

How To: Hack Your PC into a Mac! How to Install OS X Mountain Lion on Any Intel-Based Computer

Have a PC but hate Windows? Maybe you've just heard a ton about the new Mountain Lion OS X and want to see if it lives up to expectations. Either way, you can install Mountain Lion on your Intel-based PC in a few easy steps. All you need is a copy of the OS X and an 8 GB USB flash drive. The first step is getting Mountain Lion onto the flash drive. You'll need to format the drive with one partition as Mac OS Extended, Journaled and select Master Boot Record under options so that it's able to ...

How To: Restore files that have been deleted from your PC

A very unfortunate event is to realize that you deleted some PC files that you need. This happens to a lot of people, but the files can be restored! To do this you will have to download a freeware program called Restoration! After you have downloaded and installed it, start the program, and select the driver for the program to search. The program will search that driver, showing you all of the deleted files in the past. The list will be long, but with a bit of patience, you should find the mi...

How To: Play Claude Debussy's "Claire de lune" on the piano

Absolutely everybody has heard of it, regardless of whether they know it by name or not… "Clair de lune" by Claude Debussy. This masterpiece by the French composer is one of the most recognized piano pieces in the world. Debussy is regarded as one of the fathers of modern classical music, and the "Clair de lune" shows why. He introduced new, innovative approaches to harmony and sound textures that have inspired generations of musicians.

How To: Wipe your hard drive completely clean

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: Replace and install an exterior door with Lowe's

To replace a door, refer to Lowe's do-it-yourself for a step by step guide. Replacement is not very difficult. To replace just the door, tools and material required are: a new door, hammer, screw driver, tape measure, pencil, combination square, saw horses, clamps, chisel, a door lock installation kit, a drill with bits, circular saw, level, work gloves, dust mask, safety glasses, plane, shims, cardboard, and a utility knife. Before removing the old door, take a few measurements like the widt...

How To: Make Indian vegetable biryani rice

Vegetable biryani is an Indian rice dish bursting with flavor. With so many layers of delicious spiced vegetables and rice and so many levels of flavor, it is definitely a satisfying meal all by itself. Watch this how to video and try this vegetable rice recipe for a very popular and widely recognized Indian dish.

How To: Induce a lucid dream successfully

If you've ever wondered whether you could learn to control what happens in your dream, wonder no more! It's called "lucid dreaming". This 10-part video tutorial series will walk you through different stages of lucid dreaming, and soon you'll not only be able to recognize when you're dreaming, but you'll be able to control your dreams and take it into whole new directions! The sky's the limit!

How To: Turn off Auto-Correction on the Apple iPhone 3G

The iPhone is great for a lot of reasons, but one fault it may have is the keyboard and the ability to type. It's hard enough to actually type emails and notes on the small keyboard, but when auto-correction thinks it knows more about what you're writing than you do, it could become frustrating. So how do you stop Auto-Correct? Best Buy has answers. The Best Buy Mobile team explains how simple it is to turn off Auto-Correction on the Apple iPhone 3G.

How To: Increase the dock size in Mac OS X

In your Mac computer the size of the dock by default is very small. It makes it difficult to recognize the icons. However you can change a couple of preferences to make it more usable. To do this click on Apple. Form the menu select the dock option and select 'Dock Preferences' from the sub menu. This brings up the Dock preferences window. Here you can change the size of the dock using the size slider bar. You can also set the magnification to the desired level. This changes the magnification...

How To: Enable macros in Excel to run correct spreadsheets

The Costsheet demonstrates how to enable macros in Excel 2007 to run correct spreadsheets. First, open up the spreadsheet. Make sure that the macros are enabled. If they have not, enable the macros by placing them in a trusted source by saving them in a particular folder. You can also choose to recognize the publisher as a trusted source. Click the office button and scroll down to Excel options. Click on the trust center option and go to trust center settings. Then, view the trusted locations...

How To: Change drive letters or directories in DOS command

This video shows us how to change driving letters or directories in DOS command. Firstly go to start menu and then click on run. Then type cmd and press OK with which a DOS command cmd window will pop up. Now you need to change the directory and these is done by typing ‘cd..’ and after that press enter. Now you have changed the directory and now you need to see what’s in there and for that type ‘dir’ and press enter and this shows what’s in that directory. Now change to other directory by typ...

How To: Stop the abuse of alcohol

Learn how to stop the abuse of alcohol. Alcohol can take you over physically and mentally, and it is one of the leading causes of death. Here are some steps you can take to begin quitting alcohol: Try to go cold turkey. If you can't go cold turkey, enlist the help of your friends or family to help you. Go to AA meetings or find a support group. Ask family and friends not to drink around you. Set some life goals. Try to be around different people and try new things to do. Seek professional hel...

How To: Cut spokes to build a bike wheel

Assemble tools and materials. You'll need a rim, a hub, and the proper length spokes and spoke nipples. You'll need a wheel truing stand, a spoke wrench, a flat screwdriver, and medium weight oil. A spoke tensiometer, a dishing tool and a nipple driver are optional. Place the rim in your lap with the valve stem hole directly across from you. Hold the hub in the middle of the rim with it axle vertical. These instructions assume you are building a front wheel 3x. Drop one spoke though every oth...

How To: Hear/view any audio or video file on your Windows PC

In this ClearTechInfo tutorial the instructor shows with examples on how to hear and view any audio or video file on your Windows PC. This is a basic tutorial where the instructor shows how to open and play them. Video files in many formats are not recognized directly by the Windows media player like the avi format and mkv format files. Even if we try to open these files it shows an error message that the file is not supported by the player. So in order to play these kind of files we need to ...