MagLev Trains are trains that rely on magnets or magnetic force to run. There are different kinds of MagLev Trains that have been developed and they differ on the technology used to attract the magnetic force or magnets to make the train run or levitate. Each project is developing its own version of Magnetic levitation …
Total Harmonic Distortion (THD) is a measured difference in audio levels between the input audio signal’s harmonics and the harmonics of the output audio signal of an amplifier or other audio device. Output Distortion Level As the signal passes through an amplifier it is always somewhat distorted at its output. The waveform at the input …
Humidity sensors (hygrometers) measure and report the air’s relative humidity. They are used in homes, wine cellars, and working environments that that are so humid that they negatively impact working conditions. Humidity sensors are also used in vehicles, industrial HVAC systems, and meteorological stations to help in the predicting and reporting of weather conditions. How …
A hot water circulator (circulator pump) is a device that circulates hot water through a house’s pipes so that hot water is always instantly available. In traditional one-way plumbing systems, water is run through a hot water heater and directed through the pipes towards the taps whenever a tap is turned on. When a tap …
Linalool is a chemical derived from flower and spice plants as a naturally occurring terpene alcohol. It is used in a variety of applications and the Environmental Protection Agency has approved its use as a pesticide, flavor agent, and scent. It can be used on people/pets and outdoors safely, without being a threat to wildlife. …
As society is trying to slowly ween itself off of oil-dependency, the search for alternative fuels continues. One source of alternative "fuel" that already exists, however, is the electric motor. Electric motors are commonly found in vehicles, toys, and other electronic devices but there is still a campaign to improve the quality and efficiency of …
The Boltzmann Constant (Boltzmann’s Constant) is a fundamental physics constant that plays a pivotal role in almost every single statistical formulation in both quantum and classical physics. It is named after Austrian physicist, Ludwig Boltzmann (1844 – 1906), who made significant contributions to the foundation and development of a particular branch of theoretical physics known …
An earthquake is caused when two blocks or plates of the Earth slip past each other in the lateral, vertical, or a combination of directions in a sudden manner. Due to the large pressures that develop between the Earth’s plates along fault lines at the Earth’s surface, one of the bodies will eventually give way. …
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 …
A living organism is bioluminescent when it produces and emits light. Most organisms that do this live in the sea. However, there are several land insects and plants that also have bioluminescent qualities, including the firefly. The trait has typically evolved in organisms that either need to communicate with each other or lure/detect prey. How …