EMF is the abbreviation for electric and magnetic fields. EMF's are produced by the use of electrical power, and they are a type of radiation that are categorized as ionizing and non-ionizing.
Non-ionizing radiation is considered harmless to humans. This type of radiation is created by computers, cellphones and power lines. Ionizing EMFs are produced by some x-rays, ultraviolet light and gamma rays. Some studies have shown a connection between EMF exposure and childhood leukemia, while others have not. EMF detectors are used to identify EMF levels, and they are a popular tool used by ghost hunters since they believe ghosts create fluctuations in magnetic fields.Learn More
A PAR light bulb is a light with a parabolic aluminized reflector. The name PAR refers to the shape and design of the light bulb.Full Answer >
Carbon graphite conducts electricity. Graphite, an allotrope of carbon, has free electrons what carry charges from one place to another throughout the graphite. This process causes electricity flow.Full Answer >
The highest point on a wave is called the "crest," while the lowest point is known as the "trough." This is true for any type of transverse wave, including radio waves, microwaves and waves in water.Full Answer >
Electrophoresis is important because it is used to separate macromolecules, such as DNA, RNA and proteins. Gels that are made from polyacrylamide are typically used to separate DNA and proteins based on their different sizes. Proteins are also separated based on their different charges.Full Answer >