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    • PIR Sensor

      PIR Sensor

      A PIR (Passive Infrared) sensor detects infrared light that is emitted from objects within its field of view. PIR sensors differ from other infrared sensors because they can only receive infrared waves. Because all objects emit infrared waves (electromagnetic waves that travel with heat), PIR sensors can detect objects that are in front of them.

    • What is Magnesium Used For?

      What is Magnesium Used For?

      Magnesium is a chemical substance denoted by the symbol Mg. It forms part of the Group 2 of the periodic table, thus making it an alkaline earth metal. Its atomic number is 12 and it is considered to be the 8th most copious element found in the earth’s crust. In terms of the human body,

    • Vibration Measurement

      Vibration Measurement

      Vibration measurements are made in order to identify when preventive or corrective repairs are required on machinery. These repairs are made in order to reduce or eliminate the noise that damaged equipment make. This prevents catastrophic failure of the equipment. Vibration measurements are frequently made on process control equipment and rotating machinery such as the

    • How Do Quartz Watches Work?

      How Do Quartz Watches Work?

      A quartz watch is one that uses a tiny, paper thin piece of quartz to measure the time. An electrical pulse is sent into the quartz which causes it to vibrate. This vibrating is then picked up by the watch and it is measured. Then, the vibrating pulse is sent to the hand which turns

    • Hydronic Air Handlers

      Hydronic Air Handlers

      Hydronic air handlers have become a popular installation for home owners who build a new home or are replacing the HVAC system in an existing one. A hydronic air handler is significantly more fuel efficient, runs quieter, and produces more comfortable heating than a traditional furnace. It does this by providing uniformly heated air, thereby

    • What is a Hydraulic Excavator?

      What is a Hydraulic Excavator?

      A hydraulic excavator (digger) is a large vehicle that is designed for excavation and demolition purposes. Hydraulic excavators consist of a chassis, boom, and bucket, and move via tracks or wheels. They range in size and function, an example of which is the similar but smaller “mini excavator.” All versions are generally designed for the

    • What Are Bucky Balls Used For?

      What Are Bucky Balls Used For?

      A bucky ball is a fullerene molecule which is any molecule that is made up entirely of carbon. Specifically, a bucky ball is a spherical fullerene while the cylindrical fullerene is called a carbon nanotube. They were discovered in 1985 and are referred to, chemically, as C60. When they were discovered, it expanded the number

    • How Thunderstorms Form

      How Thunderstorms Form

      There are three stages to a thunderstorm’s life cycle: the cumulus stage, the mature stage, and the dissipation stage. When a thunderstorm begins to form, it does so at the cumulus stage. From there, the storm advances in severity until it reaches its peak at the mature stage and then begins to gradually die out

    • Radiometric Dating

      Radiometric Dating

      Radiometric dating is a process of identifying the age of a material based on known half-lives of decaying radioactive materials found in both organic and inorganic objects. Radiometric dating is often used to determine the age of rocks, bones, and ancient artifacts. In fact, radiometric dating can be used to determine the age of the

    • Nanotubes

      Nanotubes

      A nanotube is a cylinder made up of atomic particles and whose diameter is around one to a few billionths of a meter (or nanometers). They can be made from a variety of materials. Nanotubes are believed to be stronger than steel, but more flexible than plastic, and they also exhibit excellent thermal and electrical conductivity. These

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