Apogee is a term used to describe the point at which a satellite or object in orbit is at its furthest distance away from the Earth. When an object is at its apogee, it travels much slower than at any other point in its orbit because the Earth has less of a pull on it. By knowing an object’s apogee, scientists can calculate the total distance the object will travel around the Earth and whether it is getting closer or further away from the Earth upon each orbit. How Apogee Read More

Maglev (Magnetic Levitation) trains are the first practical use of Magnetic Levitation Technology in vehicles. In the present moment there are several countries working on the development of Magnetic Levitating trains: Japan and Germany were pioneers; USA and Australia are working in on it now. China, not being a pioneer, already has a magnetic levitating train from the airport of Shanghai to the city. Magnetic Levitation and Propulsion: The trains are floating in a magnetic cushion about 3/8″ (1 cm) above its tracks. The propulsion is done by differential shifts Read More

Linear regression is a method used in statistics to model relationships between a single, scalar variable and one or more other variables. In the linear regression method, a model is estimated for the unknown parameters from the existing data using linear functions. These models are referred to as “linear models.” Linear regression can also refer to a model in which some median of the conditional distribution of a variable, given a condition, is expressed as a linear function. Similar to other forms of regression, the linear regression application focuses on Read More

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 around the eyes and the mouth. What is great about the laser skin treatment is that it can be used at any part of the body, including damaged areas, as the laser beam is extremely Read More

Horizontal drilling is when the direction of the well is different than that of when it was initially drilled. While it does not have to be at 90 degrees to the initial hole dug, the horizontal drill bores parallel to the surface of the Earth. In recent years, it has been suggested that horizontal drilling is the best form of drilling because it saves money as well as the foot print on the world while trying to attain oil. Unlike a vertical drill where they drill directly over the oil Read More

Optical coherence tomography is the field of study in which light is used to see through a subject material’s surface. It is most often used in medicine in order to analyze a biological sample such as an eye, artery, or other body part. Although optical coherence tomography is a relatively new technique, it is considered much safer than other microscopy forms, it is cheaper to implement, and provides better results. How Optical Coherence Tomography Works Optical coherence tomography involves the use of a near-infrared light that is directed at a Read More

The light bulb, invented in 1854, has been a crucial component of civilization since. Contrary to popular belief, the light bulb was invented by Henricg Globel, a German watchmaker, not Thomas Edison. Edison did improve on the idea of the incandescent light bulb, though, and strived to make it better. Due to the works of Globel, Edison, and others, long-lasting light bulbs are now in every room of every house and building. This article will explain the art that went into creating the light bulb by showing various parts of Read More

An anechoic chamber prevents sound, radio signals, and electromagnetic waves from echoing  in a room. Anechoic chambers often test antennas, measure the direction of sound, or record music. Anechoic chambers are found all over the world, especially in universities, and can be as large as an aircraft or as small as a car. Full-anechoic chambers that are measured at less than 0 DBA are completely silent as they absorb more sound than humans can hear. In fact, an anechoic chamber at the University of Salford in Greater Manchester, England is Read More

Xenon is a noble gas–found all the way to the right on the periodic table of elements–that is odorless, colorless and heavy. It has many different uses, but one of the biggest uses that it has is the use in light bulbs. The reason for this is because when xenon is excited, it gives off a lot of light. This light is what many car companies are beginning to put into light bulbs so that people can see better with their headlights. How Do Xenon Lights Work Because the purpose Read More

Soil moisture meters are devices used to measure the percentage of water found in potting or ground soil. They determine whether crops require watering or if their soil is over-saturated and require a drying out period to maintain the health of the plants. Soil moisture meters are not expensive and can be found at home and garden shops. Typical readouts on the meters range from 1 to 10 or give a color indication of red, yellow, or green. These readings correspond with the humidity of the soil being measured. How Read More