Technology and the built world

Fatigue detection system

A fatigue detection system, or driver drowsiness and attention warning (DDAW) system, assesses driver alertness from vehicle data, cameras, or physiological signals and warns the driver.

Fatigue life analysis is the engineering practice of predicting how many cycles of repeated loading, typically well below static strength, a metallic component can sustain before fatigue failure, using stress-life, strain-life, or fracture-mechanics methods.

Fatigue risk management in aviation

Fatigue risk management in aviation is the set of scheduling controls, reporting processes, and regulations used to keep flight crew fatigue at a safe level.

Fatigue Risk Management System

A fatigue risk management system (FRMS) is a data-driven, science-based method of continuously monitoring and managing fatigue-related safety risks, tailored to each operator so crews perform at adequate alertness levels.

Fatigue testing

Fatigue testing applies repeated cyclic loads to materials and components to measure how long they survive, producing S-N curves, fatigue strengths, and crack growth data.

Fatih Mosque, Istanbul

The Fatih Mosque (Fatih Camii) is a congregational mosque in Istanbul, built on the order of Sultan Mehmed II after his conquest of Constantinople in 1453.

Fattah-2

Fattah-2, also written Fattah II, is an Iranian ballistic missile announced by the IRGC on 19 November 2023, with a claimed range of 1,500 km and liquid-fueled maneuvering warhead.

Oct 22, 2026

Fatty acid eutectic phase-change material

A fatty acid eutectic phase-change material is a minimum-melting blend of two or more fatty acids, used for latent heat storage in buildings, solar stills, and waste heat recovery.

Faulhaber

Faulhaber, formally Dr. Fritz Faulhaber GmbH & Co. KG, is a German manufacturer of miniature and micro drive systems founded in 1947 and headquartered in Schönaich near Stuttgart.

Fault current limiter

A fault current limiter (FCL) is an electrical device that stays invisible during normal operation and rapidly limits the surge of current during a short-circuit fault.

Fault detection and classification

Fault detection and classification (FDC) is a semiconductor manufacturing technique that monitors equipment sensor data in real time, detecting abnormal process conditions so engineers can intervene before yield is lost.

Fault injection

Fault injection is a testing technique that deliberately introduces faults into hardware or software systems to observe how they respond, used to validate fault-tolerant designs and measure dependability.

Fault level

Fault level is the prospective current that would flow into a short circuit at a point in a power system, expressed in kiloamperes or megavolt-amperes.

Fault model

A fault model is a formal description of how physical defects in an integrated circuit behave at the logic level, used to generate test patterns and measure fault coverage.

Fault passage indicator

A fault passage indicator (FPI), also called a faulted circuit indicator, is a device on medium-voltage distribution lines that detects fault current, helping crews localize the faulted section.

Fault simulation

Fault simulation is a digital circuit testing method that injects modeled faults, usually stuck-at, into a circuit design and simulates its behavior to measure how well test vectors detect them.

Fault tolerance

Fault tolerance is the ability of a system to continue running correctly when components fail, achieved by building in redundancy so no single failure interrupts operation.

Fault-tolerant control

Fault-tolerant control (FTC) is a control engineering approach that keeps systems stable and performing acceptably when sensors, actuators, or components fail, either through robust design or online reconfiguration.

Faurecia

Faurecia is a French automotive technology supplier that combined with German electronics group HELLA to form FORVIA, one of the world's largest automotive parts groups.

Faux Cyrillic

Faux Cyrillic, also called pseudo-Cyrillic or pseudo-Russian, replaces Latin letters with visually similar Cyrillic ones so words read as English but look Russian; common in branding, and exploited in domain spoofing.

Favicon

A favicon, short for favorite icon, is a small icon associated with a website and displayed by browsers in page tabs and bookmark lists. It is typically a 16 x 16 pixel image.

Favorable propagation

Favorable propagation is a property of multiuser radio channels in which channels to different users become nearly orthogonal, letting simple linear processing serve many users at once in Massive MIMO.

FAW Group

FAW Group, also known as First Auto Works, is a state-owned Chinese automobile manufacturer in Changchun that built China's first domestic truck in 1956 and first passenger car in 1958.

FAW Jiefang

FAW Jiefang (一汽解放) is the commercial vehicle business of China FAW Group and maker of the Jiefang brand, which built China's first domestically produced truck in 1956.

FAW-Volkswagen

FAW-Volkswagen (一汽-大众) is a Chinese passenger car manufacturer established in Changchun in 1991 as a joint venture between FAW and Volkswagen, building Volkswagen, Audi, and Jetta brand vehicles.

Sep 21, 2026

Fawwaz T. Ulaby

Fawwaz T. Ulaby is an electrical engineer known for microwave remote sensing, a University of Michigan professor emeritus elected to the National Academy of Engineering in 1995.

Fax

Fax, short for facsimile, is a telecommunications technology for transmitting scanned printed material over telephone networks, first patented by Alexander Bain in 1843 and widely adopted in the 1980s.

Fayette Power Project

The Fayette Power Project is a coal-fired power plant east of La Grange, Texas, co-owned by the Lower Colorado River Authority and Austin Energy, which holds half of two of its three units.

Fayetteville Express Gas Pipeline

The Fayetteville Express Gas Pipeline is a 185-mile interstate natural gas pipeline in Arkansas and Mississippi, carrying Fayetteville Shale gas, that entered service in 2011.