Design Principles Search Results

How To: Make a Powerful PVC Air Cannon with Coaxial Piston Valve

The video featured in this article demonstrates the function and design of a powerful form of air cannon that operates using a purpose made valve that opens very rapidly. This allows for a massive amount of pressurized air to be released at once to throw a projectile many hundreds of yards. The design of the cannon also allows the barrel and the air chamber to occupy the same space, and so it is very compact and manageable which makes for an enjoyable shooting experience.

How To: Perform a lower extremity exam on a patient

In this medical video, learn the process of examining the lower extremity of the body. See demonstrations of how you inspect the lower extremity, how you palpate and then perform passive range of motion of the hip, knee and ankle. John D. Gazewood, MD, MSPH, will also teach doctors special maneuvers to help examine a knee injury. With any type of musculoskeletal exam, you're looking for things like deformity, swelling, and changes in coloration.

How To: Master weight and balance concepts with NASA

Join NASA (National Aeronautics and Space Administration) as they give the basics on the concepts of weight and balance as applied to aerospace. There's no better place to learn about aviation theory than NASA, the United States government's most infamous agency--the powerhouse of space exploration.

How To: Learn to set Type on a Letterpress

Check out this 1959 instructional film on how to manually set type on a letterpress. You can use these techniques to create posters, chapbooks, artist prints, and all kinds of D.I.Y. old school printing fun. All graphic designers and anyone working in the printing should check this out. The video demonstrates basic principles of typesetting and distribution. The film stresses the correct way of manipulating the type, spotting letters before they are chosen and the importance of following copy...

How To: Palm read your subject's left hand

The left hand indicates what your subject has inherited from their family. Giving a reading on the left hand is different than the right, even for the same person. Peter John lays out a few palmistry principles if you want to give someone a palm reading on their left hand.

How To: Shoot low-angle footage

This how-to video offers some pointers on how to take footage from a low angle. This technique captures a unique perspective neglected by traditional methods of film-making. The principle is simple, flip the camera and go. Check out this video lesson and learn how to shoot low angle footage.

How To: Clicker train rabbits

These rabbit tricks are from the Santa Barbara Bunnies Urgently Needing Shelter Association. BUNSSB.org is training the bunnies to respond to a clicker using principles of Pavlov's dog. She shows his tricks and when you must click and give a treat to reinforce the trained behavior.

How To: Use Chromakey to enhance your videos & photos

See how to use Chromakey to enhance your videos and photos. Chromakey is the process of removing one color and replacing it with another but it most often refers to removing green screen or blue screen backgrounds and replacing them with composited videos or images. This lesson uses Pinnacle software for the final video editing, but any editing software can be used - it's more about the principles of the process and setting up the cameras that you'll learn from this video.

How To: Frame a Stud Wall

G'day, Knuckleheads, Uncle Knackers here. In this Episode, we look at making, and standing up the stud wall frames. How to build a stud wall frame is pretty straight forward but it is handy to know a few basic principles before you get stuck into it! Check it out!

How To: Mark Out a Stud Wall

G'da,y Knuckleheads, Uncle Knackers here. In this Episode, we look at marking the wall studs. Making a stud wall is pretty straight forward but you just have to know a few basics first. This stud wall framing video looks at a few basic principles that will hopefully set you up to make your first stud wall frame. Check it out!

How To: Have Proper Risk Managment When Trading

This video is teaching you how to have proper Risk Management when trading. Not managing your risk will eventually kill your capital, whether you are trading stocks, forex, futures or indices. After explaining the concepts instructions are provided for you to adopt the principles mentioned.

How To: Make an Alternative Way to Cook Food

There is always an easier way to do something whether you want to clean, organize, freshen the smell, get water into a bucket that won't fit in your sink. The same principle applies when cooking. Sure you could cook food in an oven, microwave it, boil it, fry it, cook it with a solar cooker, but there is an easier and inexpensive method.

How To: Use PHP to design and make cool websites

PHP is a scripting language that since 1995 has allowed web developers all over the world to create more dynamic websites. This video series will show you how to use it from start to finish, covering the very basics and very advanced techniques. If you want to move you web design skills beyond XHTML, watch this video.

How To: Organize your closet

To organize the closet you have to start with the donate or keep principle. Start your piles and get rid of the stuff that you no longer need. You can also have a "can't decide" pile that you put somewhere until you decide but the general rule is, if you haven't used it in a year you probably never will. There are six areas in a closet. First is short hang. It is the most common and includes shirts, blouses, and folded pants. Short hang can be hung in one level or double hang levels. Hangers ...

How To: Find sound effects on the Internet for your film

If you need some sound effects for your upcoming film, you better watch this video! After principle photography in production, you have to get into the editing process in post-porduction, which leads to sound department for ADR, Foley, Sound Effects and Sound Design. If you can't afford a professional sound designer for your movie, you can do it yourself, and this video will help you find sound effects on the Internet for your film.

How To: Do three balloon science experiments

This video describes how to perform a three balloon science experiment which is a good way for children to learn scientific principles and could make a good science project for school. In this video one will learn key elements of each project and the logic behind the fun. For example in the first experiment one learns about air pressure and how changes from hot to cold cause amazing effects. Overall this video is simple and useful for anyone who would like to teach, entertain or help children...

How To: Rind graft an apple or pear tree

Grafting, also known as "top working," is simple-but-essential technique that enables you to change the variety of fruit a tree bears. In this tutorial, Stephen Hayes of Fruitwise Apples Heritage demonstrates the rind grafting technique, a useful method for grafting over a sound-but-unwanted apple or pear tree.

How To: Create a custom membership provider in ASP.Net

A Membership Provider allows a web application to store and retrieve membership data for a user, and the standard ASP.NET Membership Provider uses pre-defined SQL Server tables. In this video tutorial, Chris Pels shows how to create a custom membership provider that uses custom SQL Server tables separate from the pre-defined tables used by the standard provider. The principles covered in the video will apply to creating custom membership providers using other databases such as Access or Oracl...

How To: Create a custom profile divider in ASP.Net

In this video tutorial, Chris Pels shows how to create a custom profile provider to store and retrieve data associated with a user profile in SQL Server tables separate from the standard ASP.NET membership provider’s aspnet_Profile table. The principles covered in this video will apply to creating profile providers for other databases like Access and Oracle. After learning how to create the custom profile provider we learn how to install the provider in a web site and see a demonstration of l...

How To: Become an interior decorating minimalist

Minimalists are the opposite of pack rats. Whereas pack rats thrive on the philosophy of "more is more," minimalists belive emphatically that "less is more." And if you're a decorating minimalist, that means using the fewest decorative objects possible to achieve a satisfying and cohesive room.

How To: Build a Cheap Waterproof Flashlight for Diving Depths Past 80 Feet

The pressure underwater is undeniably strong. If you were to fill a balloon with water and take it underwater, it would not burst but would stay the same size because liquids are not compressed. The pressure is the same, inside and outside of the balloon. If you were to fill that same balloon with air instead, the lower it dives into water, the more it shrinks, until it eventually can't take the pressure anymore and bursts.