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How To: Improve your oral presentation skills

The ComCoachVideo Tutorial is an online learning environment designed to help students improve their oral presentation skills. The website contains video clips illustrating effective and ineffective public speaking practices, as well as an interactive feedback component designed to foster students' ability to critically evaluate presentation segments.

Making Electromagnetic Weapons: The Theory Behind EMP Generators

This is the third part of my electromagnetic pulse series (see Part One and Part Two). By now, I've covered the hardware and general concept of electromagnetic pulse generators, but how exactly do they disable electronics? How can an invisible field of energy have such a catastrophic effect on computers, cell phones, and most any other electronics? I'll be answering all these questions in part three of Making Electromagnetic Weapons.

How To: How A Computer Works

Many folks seem to treat their computers as a sort of mysterious alien technology that only the shamans of the IT Department can comprehend. You might have gotten it into your head that you're just not good at computers and will never understand them. On the contrary, getting a basic grasp on all the amazing stuff inside your computer doesn't require you to be a technological genius. Most people will never have a need or desire to open up their computer and poke around. But it's your machine....

Coming Soon: World's Biggest Digital Camera and Its 3.2 Billion Pixel View of the Skies

You're probably already impressed at some of the photos amateur astrophotographers can capture with their 16-megapixel digital cameras. I know I am. That's why I'm beefing up my camera skills, so I can also take some amazing pictures of our skies above. But if you can take photos this good with a 16-megapixel camera, imagine what you could do with something a little bigger, say, 3.2 billion pixels! That's a whopping 200 times more pixels!

How To: Generate Electricity From Kinetic Energy

Piezoelectric Energy In this article, I'll show you how to make a small, wallet-sized device that generates electricity from kinetic energy. The concept is simple: Piezoelectricity is the charge that is produced when certain solid materials (commonly ceramic and crystal) in response to mechanical stress. Piezoelectrics have many applications; in speakers, actuators, sensors, even fuses. For more information, click here.

News: Keep Your Car Perfect with Winter Car Maintenance Tips

Cars require maintenance no doubt, but it needs pampering even with the change of weather. Like in summer rainy and winter your vehicle is suppose to be looked after differently. It’s always wise to take measures before the onset of the winter season, to save you from the perils. Car owners can follow regular maintenance schedule to have a perfect care of car and it will help them to have hassle free car drive in all sort of weather circumstances even in mercury boiling temperature or spine c...

News: Amazing Solar-Powered Printer Uses Sunlight to Sculpt 3D Objects Out of Sand

No matter if you've used one or not, you've got to admit that 3D printers are pretty darn awesome, especially the self-replicating ones that extrude molten plastic and the shoebox-sized versions that use mesmerizing stereolithography to build tiny objects layer by layer. But what's even cooler? A solar-powered printer that uses the sun's energy to melt sand and make 3D objects out of glass.

Minecraft: Musical Wonderland

Have you ever wanted to ride a rollercoaster while listening to Lady Gaga? Or have the Star Wars theme auto-play when you enter your house? You can with Minecraft. Search Youtube for a popular song + Minecraft, and chances are there will be a video for it!

How Do You Create Your Own Job: An Example

On Thursday, March 9, there was a news story on the evening news about Khan Academy (NBC News). The story began when Sal Khan started tutoring his cousin in 2004. Since he was in Boston and she was in a different city, he decided to make and post videos on YouTube so anyone could watch the videos. Later he added videos for her brothers and for people that contacted him with requests for other videos. During this time Sal had a job that he later replaced with another job. Today Sal has 2010 vi...

News: Crafting Buildings

Check out MY quick intro and some tips for the Crafting building then watch my video for more in depth, live action information! This post is NOT copied from the Zynga boards, so it's unlike any you have seen yet!

News: Culver City Seido's Approach to Improving Your Fitness

The point of any workout is to stress your body and initiate an adaptive training response. Period. What are appropriate levels of stress necessary to achieve the adaptive response? In terms of the cardiovascular system, studies have shown that it usually takes about two minutes to get the heart rate into the training zone. Once there, the heart shows an adaptive response after five more minutes of training in the zone. Total minutes needed to get an adaptive response from your heart? Seven.

How to Act Like a Food Snob: Molecular Gastronomy Edition

I first heard the term molecular gastronomy while watching an episode of Bravo's Top Chef a few seasons back. Intrigued by the concept, I sought to find out more about this modern, deconstructed type of cookery. If you happen to be around foodies and the topic of molecular gastronomy comes up (which very likely will at some point) you'll want to have a few points to contribute and maybe even give them a run for their money.

How To: Use sequential images to create animation in Flash 8

Flash is commonly used to create animation, advertisements, various web-page components, integrate video into web pages, and more recently, to develop rich Internet applications. In this Flash 8 video tutorial you will learn how to import sequential images. Make sure to hit "play tutorial" in the top left corner of the video to start the video. There is no sound, so you'll need to watch the pop-up directions. Use sequential images to create animation in Flash 8.

How To: Make a High-Powered Compressed Air Rocket Gun

In this article, I'll show you how to make a high-powered, long-range, air-powered rocket gun. This launcher is based on a sprinkler valve, a modified propane tank, and a few other components. Though not hard to make, this device is VERY dangerous! The rocket can seriously harm, if not kill any living thing it's shot at. Here's a video of it in action, quite an accurate shot by my friend Chris... Parts

Chalk It Up to Experience: How to Make Realistic Chalk Symbols in Photoshop

Need help getting started on this week's WTFoto Challenge? Look no further! In this tutorial, I will teach you how to create simple chalk symbols and writing in Photoshop. So read through this post and try it out yourself—or I'll tell your cousin what you said when you were drunk that one time. Keep in mind that the steps are similar for other programs, such as GIMP.

IPsec Tools of the Trade: Don't Bring a Knife to a Gunfight

Pull up outside any construction site and you'll see tools scattered about—hammers, jigsaws, nail guns, hydraulic pipe benders—these are the tools of the trade. You would be hard-pressed to build a home or office building with just your hands! On that same page, security professionals also have their own go-to tools that they use on the job site, only their job site is your server.

The Ultimate Guide: Diagnosing & Fixing Connection Issues, Part II

Hello everyone and welcome to Part II - The Ultimate Guide: Diagnosing & Fixing Connection Issues. In this tutorial we will discuss more advanced methods that I took in order to fix our home network. I have also attached a link to download the FREE eBook - so feel free to download it to you can refer to this manual when you are experiencing connection issues. I would also like to note that the manual has been loaded onto a free server - it will remain on the server until people stop downloadi...

Apple's iCloud: What You Should Know

As I was listening to Apple's WWDC conference today, what ran through my mind the most is if there were ever a time to switch to the world of Apple computing now is it. Today's WWDC keynote presentation was chock-full of new and updated iOS mobile software—too much to cover in this one article. But the most "new thing" coming from Apple this Fall is iCloud, a file sharing and streaming service that requires no wired connections.

News: Pirates! Possibly the Purest RPG Ever

I love role-playing games. They tell great stories, require intense strategy, and make minimal demands of my tyrannosaurus-like hand-eye coordination. The idea of an RPG experience, at least on paper, is to allow users to play the role of a character. However, real people do not gain generic experience points for killing things, nor do they pause for each other during combat or have the ability to carry hundreds of potion bottles without slowing down. These can be fun gameplay mechanics, but ...

Meat, Manners, and Mayhem: Vegetarian-Carnivore Communication

If you’ve watched The June the Homemaker Show, you’ve heard me mention once or twice that I’m a vegetarian. Over the course of my restricted diet eating, I’ve noticed that vegetarianism is a touchy subject among vegetarians and carnivores alike, particularly in meal-type situations. Here are some things for omnivores and, uh, not-omnivores to keep in mind when talking to each other about food preferences.