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How To: Make nitric acid

Watch this science video tutorial from Nurd Rage on how to make nitric acid. They show three ways to make nitric acid based on two different chemical approaches, both of which can be done using easily accessible materials.

How To: Fold a giraffe out of origami

Start with the basic base you'd use to make an origami bird, and then use this variation so you can end up with a giraffe! This project is about low-intermediate in complexity, so make sure you know the origami basics first.

How To: Edit videos like a pro with Windows Live Movie Maker

Edit your video footage like a pro with Windows Live Movie Maker. This informative video from Vimeo's excellent Video 101 series of tutorials reviews the steps involved in using the software to create a basic 5x5—that is, a video composed of five clips of five seconds each. The different steps highlighted include importing your video clips, trimming the footage, editing audio, adding transitions, adding text & titles, and uploading to video sharing sites.

How To: Program faster with some PHP speed tips

If you're looking to shave a few milliseconds off the Zend Engine's work load, check out this tutorial for some PHP programming speed tips. This efficency will pay off when you have tons of traffic to your site and save you valuable server resources.

How To: Use the AutoFill feature in Safari and save time

Use the AutoFill feature in Safari to quickly fill in web forms for sites that you visit again and again and save time when logging in. Form entry data is stored in your address book contacts, and from information you have filled out in web forms before. You can see the passwords used by AutoFill in the OS X keychain, and you can also specify and limit general access to those passwords.

How To: Save your server resources with PHP caching

Sometimes server space can be an issue, especially when you're talking about costly actions such as iteration, file scanning, and numerous queries. In those instances it's often best to cache! This tutorial gives you a simple example which can help your site load faster and take less abuse.