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    • Fingerprint Identification

      Fingerprint Identification

      What is Fingerprint Identification? Fingerprint identification is the process of using fingerprints to identify an individual. This is very effective because each person has completely unique fingerprints that do not change with age. Fingerprint identification is used for a variety of reasons: security, criminal investigations, and even ergonomics. Fingerprint identification often consists of a fingerprint

    • How Laser Skin Treatment Works

      How Laser Skin Treatment Works

      A laser skin treatment is a relatively new technology that surgeons have only recently begun using. It is when the surgeons utilize lasers (containing carbon dioxide) to vaporize the skin’s upper layers, consequently allowing a new layer of skin to form. The technique is commonly used to fine tune wrinkles and various face lines, especially

    • What is a Permeable Membrane?

      What is a Permeable Membrane?

      A membrane is a barrier that prevents entry of materials. Membranes can be permeable, which allows certain materials to go in and out of the barrier based on a variety of factors. Permeable Membrane in Biology In biology, a simple example of a permeable membrane is a cell wall. In both plant and animal cells,

    • Nanopollution

      Nanopollution

      Nanopollution refers to the waste matter or byproducts of nanoscopic device or material manufacture. Nanoscopic device or material manufacturing processes leave behind nanoparticles (smaller than a billionth of a meter) which can infiltrate the cells of humans, animals and all living organisms that may be unprepared for the influx of artificial particles. A 1941 study

    • The Coriolis Effect

      The Coriolis Effect

      The Coriolis effect is the tendency for a moving body that is on or above the Earth’s surface to drift sideways from its intended course due to the Earth’s rotation. The direction of drift is to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This is because the Earth’s

    • What is a Karnaugh Map?

      What is a Karnaugh Map?

      A Karnaugh map is a graphical method or shortcut that can be used to solve Boolean algebra problems. Boolean algebra is used to conduct computations and create expressions from two values. This type of math creates the basis behind much of computer science and modern circuit card design today. Maurice Karnaugh created the current version

    • Potassium Alum

      Potassium Alum

      Potassium alum is also known as potash alum, tawas, and alum (its common name). The specific compound is the hydrated potassium aluminum sulfate and it is commonly found in deodorant, aftershave treatments, fireproof textiles, baking powder, and used in leather tanning and water purification. It is soluble and liquefies when heated. Potassium alum is colorless

    • What is a Fullerene?

      What is a Fullerene?

      A fullerene is a third form of the carbon molecule that falls in between graphite and diamond. It was named for Richard Buckminster Fuller, who was well known for geodesic dome designs whose appearance closely resembled spherical fullerenes. A Fullerene’s carbon atoms may be arranged in a cylindrical, ellipsoid, or spherical form. The spherical fullerenes

    • How Do Microwaves Work?

      How Do Microwaves Work?

      In the modern world, virtually everyone owns a microwave oven. How many people, though, stop to consider what exactly microwave ovens do or how they work? To anyone who has been alive over the past few decades, microwave ovens are as normal as anything else; to someone born even a century ago, however, they would

    • Pulse Jet Engines

      Pulse Jet Engines

      A pulse jet engine is a type of jet engine that uses pulses of combustion rather than continuous combustion to stay in the air, thereby reducing fuel costs and increasing efficiency. While pulse jet engines have been used in many functional jets, they can also be used for a variety of other applications such as

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