A typical stereoptic microscopemicroscope image by guy from Fotolia.comThe first optical microscopes were invented in the 16th century by Dutch spectacle makers Zachariah and Hans Jensson, and greatly improved by Anthony Leeuwenhoek. Microscopy has been part of science ever since. ...

Plants make food in a process called photosynthesis. Photosynthesis is an essential process in an ecosystem. Through this process, plants also produce energy. Plants must be able to make food in order to grow. Several ingredients are needed before this chemical reaction can happen. Since plants are

Energy powers all of the world's commercial industry and residential life. The advent of energy systems that bring fuel sources directly into the home and onto the streets has brought portions of the world's population into what is known as the "first" world, or progressive civilization. There has

The standard raised fence on a manufactured miter saw allows you to stabilize short and moderate lengths of wood when making cuts. When cutting longer pieces, many do-it-yourself builders use an accessory stand or assistant to support the outer end of a piece. But this doesn’t ensure the piece

Electromagnetic therapy as a system of healing has existed for more a century. Though often considered too advanced during the 1900s, the practice has made a comeback among those looking for natural health alternatives. Nancy E. Campbell of In Light Times reports that magnet healing can treat a vari

Three-phase power is a technique of alternating electric current transmission and uses less conductor material to transmit electric power. This makes it worthwhile to convert other phases including single-phase power to three-phase. The process can be done using rotary phase converters, which are de

The intricate design of a mosaic may add an old-world appeal to a room. Creating a mosaic by placing the tiles onto the wall one-by-one can be a cumbersome process. Pre-made mosaics come on fiberglass mesh backing that directly adheres to the wall. This allows people without time or artistic skill t

Ceramic glazing is the process of applying a glaze or a mixture of powdered materials — including premelted glass — onto ceramic pieces such as pottery bowls or dinnerware to add a glossy, professional look. Glazing can be applied through spraying, painting or dipping and must be dried b

Boogie boarding or bodyboarding, has been around for more than 40 years, the creation of California surfboard builder Jim Morey. He fashioned the first bodyboard out of foam scraps covered with newspaper. Since then bodyboarding has become nearly as popular as surfing. Bodyboarding takes place in th

HPLC stands for high performance liquid chromatography. The basics of HPLC are that a solvent is forced through a chromatography column at high pressure. As different compounds move through the column, they are separated by their size and polarity. The pump is very important to the system, as it is

Density is a measure of how densely packed the atoms and molecules are in a sample liquid or solid. The standard definition is the ratio of the sample's mass to its volume. With a known density, you can calculate a material's mass from knowing its volume, or vice versa. Specific gravity compares eve

Cell ConstructionSolar cells are made predominantly from pure silicon. Silicon naturally does not carry a positive or negative charge, but when it is combined with another charged element, it will take on that charge. For electricity to flow, a conducive link must be created between a...

You can build an attractive, hardwood corner bench in your home in less than one hour. It can be placed in any unused corner in your home. It installs directly to the wall, and is easy to clean under. By using the studs in the wall as anchors, the bench uses the strength of your walls for support. W

The acid phosphatase test is a useful technique to use for detecting prostate cancer.glass beakers image by Mark Aplet from Fotolia.comTechniques developed by forensic biologists are used in medical labs around the country. These techniques assist police personnel in identifying...

A constellation is a group of stars that, when a line is drawn through each star in the constellation, a shape is formed. These shapes were given names depending on what the shape appeared to look like to onlookers; thus, with many constellations, a little imagination is required to see the connecti

Any major investment requires a great deal of forethought and research. You need to feel secure in your investment, and know that all possible angles have been considered. Purchasing an airplane hangar is no different. The buyer of a hangar must know what questions to ask and make an informed dec

Stained glass cards provide a pretty and special way to send someone a greeting. Handmade cards are always appreciated by the recipient. There are two different ways to make stained glass cards. One method is simple enough for children to help with. The second look is more realistic and is an adult-

Whittling is both an art form and a hobby. Whittlers are wood carvers on a small scale but that does not mean they are any less skilled. Sometimes you may want to whittle just to relax and think, but other times, you may want to whittle something specific. Regardless of what you hope your final prod

Bedrock is a natural and stable base for building. Areas with bedrock located near the earth's surface require a shallow excavation before laying the foundation. Concrete forms placed on top of the bedrock are commonly used to create stable foundations. The tools required for bedrock foundations are

Transformers are inexpensive handy devices that convert high-voltage alternating current to safe low-voltage direct current. Many transformers give you the facility to vary the voltage using a dial so you can match the voltage to your electrical equipment, or make the motor go faster or slower, such