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What Is the Crystal Theory?
When the metals described on the periodic table of the elements come into contact with each other or are changed by chemical reactions in a lab, their properties can be drastically altered. The crystal theory explains why these property changes occur and helps scientists predict exactly which change
How to Round a Number to the Nearest Hundredth
Much of life is approximation. If someone asks how you are, you might say, "Okay." If you're asked what the weather's like, you might answer, "Sunny." Neither "okay" nor "sunny" is an exact term. Both are approximations. Scientists often approximate to reflect the accuracy of their measurements. If
How to Carve Celtic Knots in Wood
Celtic knots were first created during the late Roman Empire. Carving Celtic knots requires sharp tools and sharp eyes. These knots are intricate interlaced symmetrical designs that some people believe have magical attributes due to their near perfect symmetry.
Facts on Sulfur
Sulfur, otherwise known as brimstone, is a non-metallic element. Its atomic number is 16 and it is represented as "S "in the periodic table. It is widely available in nature in free as well as combined forms. Sulfur has many beneficial uses in day-to-day life. Some compounds of sulfur are highly tox
Tips and Tricks for the Awana Grand Prix
Awana is a multi-denominational evangelical organization for children ages two to 18. Founded in 1950, the Awana clubs meet weekly in more than 100 countries around the world. Since 1964, the Awana Grand Prix has been a yearly event. Over 5,000 locations host Grand Prix events annually, and approxim
How to Make Your Own Traditional Woodworking Tools
Despite modern manufacturing methods and materials, woodworking remains a passionate hobby for many people. Woodworkers can certainly use current tools from their local hardware or home improvement store to build any number of items, but some woodworkers decide to create their own tools. Two popular
How to Make a Model of Gravity
There are a few theories about what gravity really is. Sometimes it acts like an energy wave. Some scientists think it's an effect of the expansion of the universe. Einstein described it as a bending of space and time that increases with the mass of an object. The ultimate example of gravity's effec
How to Decorate Wood Craft Boxes
Wood boxes make great gifts or containers for gifts. Decorating wooden craft boxes makes the package just as beautiful or interesting as the gift inside. Painting a box is very simple and anyone, even a child, can do this depending on the difficulty of the design you choose.
How to Whittle Whistles Out of Wood
Creating a whistle is a great project for beginner or novice whittlers. The basic construction is simple, but the possibilities for shaping and decorating can be endless. With a few simple tools and a good whittling knife you can whittle a piece that not only looks beautiful, but also functions as a
How to Explain Neon Lights
Anyone who has been around a big city late at night, a club or bar or seen a television show set in Times Square or on the Las Vegas strip is familiar with the strong glow of neon lights. The lights are so ubiquitous that the word neon itself has been used to describe particularly bright shades of p
How to Wire an Electrical Contactor
Contactors are repeatedly used to close and interrupt an electrical circuit. An electromechanical contactor circuit closes when voltage is applied to a coil inside it. The coil acts as a magnet and rapidly draws the main contacts together. When voltage to the coil is shut off, springs pull the main
How to Calculate the Head on a Submersible Pump
Submersible pumps are frequently used in underwater well systems, and the head on such a submersible pump is an important quantity to determine, as it tells you how well your pump works.The head is a measurement of water pressure, usually measured as a distance above a reference point. The static he
How to Build Decks in Sims 2
Don't keep your Sims cooped up inside when they can enjoy the beautiful weather common in The Sims 2. Build a deck around your house and let your Sims throw parities or invite friends of for a barbecue. The Sims 2 features a foundation and deck building system that allows players to easily build out
Directions for Tiki Carving
The term tiki originated in Polynesia and generally applies to carved humanoid figures of stone or wood. Sometimes these carvings are small enough to be worn on a necklace; sometimes they are so large they would dwarf a building. Carving a tiki requires specific tools and woodcarving experience.
Potter & Brumfield K10 Relay: Specifications
Relays combine two other electrical components: a switch and an electromagnet. The electromagnet opens and closes the switch. The circuit with the electromagnet controls the circuit with the switch.
Do Microorganisms in Soil Affect Plant Growth?
Plants take up moisture and nutrients through their root systems. Healthy soils store moisture and nutrients and create a hospitable environment for plant root systems. When plants inhabit a healthy soil, their root systems have access to those elements needed for growth and production. For a soil t
How to Convert a Trailblazer to a Tent
Increase your living space when camping by converting your Trailblazer into a tent, combining your rugged vehicle with a nylon tent living room. Various brand SUV tents can accommodate the Chevy Trailblazer and follow the same basic instructions. Waterproof floors, weather-resistant walls and a stur
How to Repair Headstocks on a Double Bass
Double basses are bulky instruments that are not easy to protect from a falling or from banging on low-hanging objects. A lot of damage to the headstock, or scroll, comes in the form of splits in the wood around the area where the scroll joins the neck. Sometimes, the joint is fitted poorly and come
How to Set Chimes on a Rhythm Wind Up Clock
Rhythm Clocks is a company that made traditional clocks of all types, from mantle clocks to wall and grandfather clocks. Rhythm clocks with chimes are generally grandfather and wind-up clocks, and include a system of weights and pulleys. The inner mechanisms on Rhythm grandfather clocks regulate the