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How to Check a Zener Diode
A Zener diode is a diode designed to operate in the breakdown region. Normal diodes will become destroyed, but a Zener will conduct. It may be used for voltage regulation. To check one, use a multimeter to test its voltage both in and out of circuit.A 1N4734A Zener diode has a 5.6-volt a
How to Create a Calendar for Kids
Create a calendar for kids that they will not only have fun with, but will help them to learn the different days of every month, and will help them keep track of their own events and appointments. This is a great way to teach children the importance of organization and time management. You can easil
Information on Antique Glass Medicine Vials
Antique glass medicine vials were thick, medium-sized glass bottles in all shapes, with bold paper labels or carved names of the company and product on the glass. They were manufactured from the late 18th to the early 20th centuries. They are popular with collectors who look for mint condition bottl
Components in a Wind Turbine
Wind power has started to become a central part of alternative energy strategy, with fields of turbines turning up across the world on both land and sea. Although what they do may seem very complicated, the basic idea is actually very simple and involves all of the components working together to pow
Difference Between Meteors & Meteorites
Astronomy is a field that doesn't have a lot of tangibility to it. Astronomers study nebulae, extrasolar planets, galaxies and pulsars through the use of telescopes and other imaging equipment. Meteorites are the exception. Humans can touch and study meteorites. But meteorites should not be confused
How to Build a Rollerblade Ramp
Rollerblade ramps come in many different shapes and sizes. The most common and convenient style of ramp would be the kicker. Kicker ramps are generally three to four feet wide by two to four feet tall, but can be made to any dimensions. This type of ramp is great for having at home because it can be
How to Prepare a Block of Wood for a Cutting Board
Sometimes a home improvement project yields scrap wood of high quality but small pieces. If you're hesitant to toss good quality wood, consider making the wood into a cutting board. Although you may be tempted to sand and stain the entire block of wood, the strength of objects made in fine woodworki
How to Use a Framing Square for a Circle
Learn to use an ordinary framing square to draw a perfect circle when a compass is not available. A framing square is a carpenter's tool consisting of a short and long straight piece of steel that join at a 90-degree angle. Usually the square has length marks written on its edges just like a ruler.
What Colors Best Absorb Heat?
Light is one of the most essential forms of energy. Whether it is from the sun or from light bulbs, light rays are a form of energy that increases the speed of atoms on objects they hit. This comes in the form of heat. Standing outside on a sunny day allows your body to absorb the sun's light and wa
Characteristics of Intrusive Rocks
Igneous rocks are extrusive and intrusive. Extrusive rocks are formed from magma above the surface, while intrusive igneous rocks form from magma beneath the surface. The cooling process may be fast or slow, and determines the color and texture of the intrusive rock. Intrusive rocks also form large
Describe Plant Identification
Methods that professional botanists use in plant identification can be a bit daunting. Fortunately, identification can be simplified for the rest of us. Field guides are available that essentially demystify identification so that someone with a more or less casual interest in plant identification ca
How to Calculate Catapult Force
A force acts about a catapult's point of rotation in order to hurl an object through the air, often as a weapon. The driving force of the catapult is best measured as a "moment," or the amount of rotational force imparted to the catapult's arm. The resultant force on the projectile is a function of
Techniques for Copper Plating with Copper Sulfate Solution
Many items can be given a copper coating safely.copper image by Henryk Olszewski from Fotolia.comThere are two main ways to electroplate an object with copper. The first method uses a copper anode to transfer copper to a non-copper cathode, coating it in a thin layer of copper....
List of Liquids That When Added to Baking Soda Make Chemical Reactions
Substances are divided into acids and bases based upon their pH number. Acids have a pH level of 6 or lower, taste sour, can be corrosive and turn a litmus test strip red. Bases are substances that have a pH level of 8 or greater, can feel slippery and turn a litmus test strip blue. Baking soda is a
How to Know If a Silver Candle Holder Is Real
Sterling silver is a mix of 92.5 percent silver and 7.5 percent copper or zinc. The added metals provide much-needed strength to functional silver objects like candle holders. Sterling silver has become very valuable and pieces crafted from it can make attractive additions to antique collections. Co
How to Calculate Contact Force
Newton's Three Laws of Motion provide the basis for understanding the source of movement for many macroscopic objects. One important implication of these laws is that any changes in motion of an object is caused by a force (such as a push or pull). These interactions where two (or more) bodies are i
The Best Present for a Woodworker
Woodworking is a hobby and artistic pursuit that can require a variety of different tools and accessories, depending upon the extent of the woodworker's involvement in the art. Choosing the best gift for a woodworker can be subjective, as there are numerous gift ideas a woodworker might enjoy. Befor
How to Get Food From a Tree Fern
You are wandering in a wet, tropical forest. After several days of trekking through jungle, you have to admit it: you are hopelessly lost. Indeed, your situation has become one of simple survival. Priority number one--finding drinking water--hasn't really been a problem in this wet region. Priority