Terahertz radiation is a selection of the electromagnetic wave spectrum that propagates at frequencies regarded as the terahertz band. ‘Radiation physics of energetic waves’ defines the terahertz band as tremendously high frequency. The terahertz band can be applied within the bracket of 300 gigahertz (high frequency microwave) and 3000 gigahertz (long wavelength far infrared light). This band’s wavelength can be as small as o.1mm infrared to 1.0mm microwave. Terahertz radiation is also known as: Submillimeter radiation Terahertz waves (T-waves) Terahertz light (T-light) T-rays T-Lux THz The terahertz band radiation travels Read More

Before 1982, the penny was made of copper which is why they, unlike most other coins, don't look silver. However, after 1982, the U.S. government realized that it was too expensive to make a penny–more than the penny was worth in money–so they decided, instead, to make it with a mixture of two different metals. Nearly ninety nine per cent of the penny is made of zinc while the other per cent (at most) is made of copper. How a Penny is Made Sheets of copper are laid out and Read More

Silicone grease is made when a thickener is combined with silicone oil in order to create a waterproof grease. The most common thickener used to make this grease is amorphousfumed silica with polydimethylsiloxane as the silicone oil. The resulting mixture is a translucent, viscous, white paste that has lubrication properties depending on the exact formula used to create the grease. Silicone grease has a wide range of uses in both the appliance and automotive industries. It is not suitable for applications that experience temperatures exceeding 300 degrees Fahrenheit because it Read More

A magnetic levitating vehicle (MagLev) is a vehicle that uses a strong electromagnetic field to resist gravity and keep the vehicle floating out of the ground. The technical name is Electromagnetic suspension. The principle of the Electromagnetic suspension is to charge with the same pole the base of the vehicle and the rail with a magnetic field strong enough as to generate a force stronger than the weight of the vehicle and have suspension. When and Where Was Maglev Invented? The first patent for a MagLev was granted in 1968 Read More

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 is off, the water remaining in the pipes begins to cool and becomes stagnant. This is why users often have to wait a few seconds for the water to get hot. In a plumbing system Read More

A nuclear power plant works in the same way that a coal power plant works. Heat is generated which causes water to turn into steam. This steam turns a turbine which causes a generator to spin which generates electricity. However, a nuclear power plant does not use coal. Instead, the fuel of choice is uranium 235. When used, this can create a lot more power than coal can. The first step is to pack a 12 foot long fuel rod with the uranium 235 pellets. They are lined in this Read More

Soil is classified as acidic or alkaline based on its pH value. pH is basically a measure of the acidity or alkalinity of a solution.  Technically, it is the measure of the hydrogen-ion concentration in the soil. pH is measured on a scale of 1-14, with 7 being the neutral mark. If the soil hits any value below 7, it is considered acidic, and any value above 7 denotes alkalinity. Assessing soil pH is very important for farmers and gardeners, as it helps them choose the right kind of plants Read More

Tidal energy is energy that can be obtained from the changing sea levels. In other words, tidal energy is a direct result of tide shifting from low to high. Tidal energy is considered a renewable source of energy since it only uses the energy from tide changes instead of burning or consuming any form of energy source. It is also considered inexhaustible because tides always rise and fall due to gravity. Tidal power utilization is also considered a very reliable source of energy due to its predictability. Compared to other Read More

Ceramic briquettes are special accessories for gas grills that help consume less fuel. These briquettes come in various styles and can help to give the classic grilling to meats and other dishes that are prepared over the grill. The ceramic briquettes also help to distribute the heat more evenly and this is effective in producing heat for the grilling grid or griddle. This can help to save fuel by reducing the amount of heat energy required to evenly heat the grid or griddle. Who Needs Ceramic Briquettes? The matter of who needs ceramic Read More

Gyroscopes measure orientation, gain or maintain a specific orientation, and are based on angular momentum principles. Mechanical gyroscopes are typically made up of a spinning disk or wheel with an axle that can take any orientation. Large changes in angular momentum affect the axle more than the external torque’s effects due to the gyroscope spin’s high rate. Gyroscopes are commonly used to stabilize airplanes and helicopters, in ship navigation, naval weapons guidance systems, and tunnel mining. Modern gyroscopes can be linked to global positioning system-based devices in order to obtain Read More