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Tunable metamaterials are materials designed to have qualities that are not found in nature. These qualities can be dynamically altered or changed in response to…

A split-ring resonator (SRR) is an artificial structure found in metamaterials. It is a sort of artificial metamaterial structure that exhibits unique electromagnetic properties not…

A seismic metamaterial is a metamaterial that is intended to mitigate the negative impacts of seismic waves on manmade constructions located on or near Earth’s…

Electromagnetic brakes (EM brakes) are used to slow or stop automobiles by applying electromagnetic force to mechanical resistance (friction). These are braking systems that employ…

An oscillating U-tube, often known as a U-tube manometer, is a simple device for measuring pressure variations in a fluid. It is made up of…

Thermal mass flow meters, also known as thermal dispersion or immersible mass flow meters, are a type of device that measures the total mass flow…

The krytron is a cold-cathode gas-filled tube used as a very high-speed switch, comparable to the thyratron. It consists of a sealed glass tube with…

A thyristor is a solid-state semiconductor device that functions as a highly robust and switchable diode, allowing current to flow in one direction but not…

A thyratron is a gas-filled tube that functions as a high-powered electrical switch and controlled rectifier. It functions similarly to a vacuum tube, but with…

A mercury-arc valve, also known as a mercury-vapor rectifier or (in the United Kingdom) mercury-arc rectifier, is a type of electrical rectifier that converts high-voltage…

A trigatron is a sort of triggerable spark gap switch designed for high current and voltage (often 10-100 kV and 20-100 kA, however mega-ampere devices…

Overvoltage in electrical engineering refers to a voltage increase that exceeds the design limit of a circuit or circuit element. It describes a condition in…