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How to Use Geometric Mean

How to Use Geometric Mean

The geometric mean is a type of average. It is the nth root of the product of n numbers. For example, the geometric mean of 3, 6 and 9 is (3x6x9)^(1/3), or about 5.45. More intuitively, it is the arithmetic mean of the logarithmic values of a data set, which is then converted back to base -10. This ......[Read More]
Living Habits of Rabbits & Their Young in Pennsylvania

Living Habits of Rabbits & Their Young in Pennsylvania

A welcome sight in some suburban backyards, Pennsylvania rabbits are considered a nuisance to some. Cottontails are most prevalent in the Keystone State, while the Appalachian and New England subspecies are considered at risk. Technically not a rabbit, the snowshoe hare is the only variety of hare t......[Read More]
Dew Point & Pressure

Dew Point & Pressure

Dewpoint is the temperature at which air forms dew at a particular pressure. The dew point is also connected to the relative humidity--a high relative humidity indicates that the dew point is close to the current air temperature. For example, a humidity of 100 percent indicates that the due point is......[Read More]
How to Standardize a pH Meter

How to Standardize a pH Meter

The standardization of a pH meter is important to ensure that the readings returned from that meter are accurate. Digital & analog pH meters offer calibration buttons or dials that are used to adjust the sensitivity of the meter. Over the course of standard usage, laboratory equipment, such as a pH ......[Read More]
What Is a Boulder Opal?

What Is a Boulder Opal?

Hiding inside a host rock boulder, opals are stunning, iridescent jewels that shine and shimmer. Mined primarily in Australia, these multicolored pearlescent semiprecious stones are among nature's greatest treasures.......[Read More]
How to Calculate Phase Response

How to Calculate Phase Response

The phase response of a circuit is the relation between the input signal and the output signal of an alternating current electrical circuit. Because of the various elements in such a circuit, such as inductors, the signal will change within the circuit. In certain filtering circuits, such as RL circ......[Read More]
How to Recover Gold From Circuit Board Fingers

How to Recover Gold From Circuit Board Fingers

Circuit board fingers, found inside computers, are covered in gold plating and look like fingers that insert into connectors within the computer. People collect or purchase old, obsolete computers for the purpose of recovering gold from the computer's electronics. In order to recover enough gold to ......[Read More]
Calcium Gluconate Vs. Calcium Chloride

Calcium Gluconate Vs. Calcium Chloride

Calcium is the most common metal in the human body. Calcium is taken as a supplement by women who suffer from osteopenia or osteoporosis. Supplement varieties include calcium chloride and calcium gluconate.......[Read More]
What Are the Predators of the Furry Lobster?

What Are the Predators of the Furry Lobster?

The title "furry lobster" most commonly refers to the family Synaxidae, though outside the scientific literature, the term may be misattributed to the "yeti lobster" from the family Kiwa hirsute. The furry lobster, also called the coral lobster, is a small decapod crustacean. It gets its name from t......[Read More]
Sears Wood Cutting Tools

Sears Wood Cutting Tools

Generations of woodworkers have turned to Sears for wood cutting tools.planing a table top image by leemarusa from Fotolia.comGenerations of amateur and professional woodworkers have turned to Sears to shop for tools. Founded in the late nineteenth century, Sears first began selling tools.........[Read More]
How to Get a Moonstone in Pokemon Soul Silver

How to Get a Moonstone in Pokemon Soul Silver

The moonstone in "Pokemon Pearl" is the only way to evolve Clefairy to Clefable, Skitty to Delcatty, Nidorina to Nidoqueen, Nidorino to Nidoking and Jigglypuff to Wigglytuff. Moonstones can be found by catching wild Cleffa and Clefairy that sometimes hold them, or by digging underground and searchin......[Read More]
How to Install a Wood Vise

How to Install a Wood Vise

A wood vise installed into the end of a woodworking bench can be as useful as any other tool in a woodworker's workshop. Although a variety of different wood vises are commonly used in woodworking benches depending on the need, the premise is still the same. A large screw is turned that drives an ad......[Read More]
How to Make 3D Shutter Glasses

How to Make 3D Shutter Glasses

Making a pair of 3D shutter glasses is an easy and fun trend that could set you apart from the rest of the crowd. They can be used as a casual accessory to your outfit, or for viewing images or videos and taking advantage of the full 3D effect. Today, many forms of digital media have the option to v......[Read More]
How to Make Ships in "Star Trek: Bridge Commander"

How to Make Ships in "Star Trek: Bridge Commander"

"Star Trek: Bridge Commander" is a role playing game where you take the role of a new star ship commander who is in charge of patrolling the galaxy and maintaining galactic order. One of the features of the game is the ability to build new ships for your starship fleet. You can do this from the brid......[Read More]
How to Decorate Money Collection Jars

How to Decorate Money Collection Jars

Money collection jars are generally used to hold donations for charities. They can be decorated with almost anything -- paper, paint, stickers, rhinestones or ribbons. However, the key to decorating a collection jar to successfully garner the most money is to create a look for your jar that grabs p......[Read More]
How to Make a Tire Trough

How to Make a Tire Trough

The proper watering and care of cattle and other large animals is essential to their well being. Livestock kept in enclosures, fields or corrals often are in need of an artificial water source to provide adequate hydration. Turning old tires into needed equipment for animal care is a form of recycli......[Read More]
How to Make Your Own Tool Holders From PVC Pipe

How to Make Your Own Tool Holders From PVC Pipe

Need help organizing your tools in your garage or workshop? PVC pipes can provide a sturdy and long-lasting material that is perfect for building home projects such as tool organizers. Depending on what types of tools you'll be storing, you'll need PVC pipes of different diameters. Learn how to make......[Read More]
How to Make a Water Wheel Light From a Light Bulb

How to Make a Water Wheel Light From a Light Bulb

A water wheel transfers the motion of running water into a rotational force. An alternator transforms this rotational force into electricity. You can power a light bulb with a water wheel if you have a source of running water. The water wheel can never produce enough energy to power the water runnin......[Read More]
How to Disassemble the Blade CX2

How to Disassemble the Blade CX2

The Blade CX2 is a light hobbyist helicopter with dual blades designed for maximum stability. Although the helicopter's two-blade setup is designed to maximize in-flight stability, it is not uncommon that a crash may appear. This is particularly the case when flying in wind as the Blade CX2 weighs o......[Read More]
How a Pinhole Lens Works

How a Pinhole Lens Works

When you think of a pinhole lens, you may automatically picture the lens on a pinhole camera. However, there are also pinhole glasses, which are made with pinhole lenses. The fundamental principle that makes each type work is the same.......[Read More]