All articles starting with L
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Logarithmic scale
A logarithmic scale, or log scale, is a measurement scale where each equal step multiplies the measured quantity by a fixed factor, most often ten, allowing huge ranges like pH, decibels, and earthquake magnitudes.
Logarithmic spiral
The logarithmic spiral, or equiangular spiral, is a plane curve that cuts every ray from its pole at a constant angle, common in shells and galaxies.
Logarithmic transformation
A logarithmic transformation replaces each value of a variable with its logarithm, a statistical preprocessing step that stabilizes variance, reduces skewness, and turns multiplicative differences into additive ones.
Logesh Tamilselvan
D. Logesh Tamilselvan (டி. லோகேஷ் தமிழ்செல்வன்), TVK politician, son of former Speaker P. Dhanapal; won Rasipuram (AC 92) in 2026 with 74,808 votes and serves as Tamil Nadu Minister for Commercial Taxes and Registration since 21 May 2026.
Loggerhead Key
Loggerhead Key: largest island of Dry Tortugas National Park, 3 miles from Garden Key, home to the 157-foot Dry Tortugas Lighthouse (1858) and the Carnegie marine laboratory (1904-1939), day use only.
Loggerhead sea turtle
Loggerhead sea turtle (Caretta caretta), the most abundant sea turtle in U.S. waters; large-headed carnivorous marine reptile, Vulnerable globally, with trans-Pacific migrations and temperature-dependent sex determination.
Loggi
Loggi is a Brazilian logistics and delivery technology company founded in São Paulo in 2013 by Fabien Mendez and Arthur Debert, which intermediates freight between corporate clients and independent partner couriers.
Loggia
A loggia is a roofed gallery that is part of a building but open on one or more sides through arches or columns, typical of warm climates.
Logging
Logging is the felling and extraction of timber from forests, distinct from broader timber harvesting. Key methods include clear-cutting and selective logging; reduced-impact logging (RIL) cuts residual stand damage by half or more.
Logging truck
A logging truck, also called a log truck or timber truck, is a heavy-duty truck configured to carry cut logs from a harvest site or landing to a mill.
Logging while drilling
Logging while drilling (LWD) is a geophysical well-logging technique that measures formation properties, such as resistivity and porosity, with sensors in drill collars just above the drill bit.
Loggins and Messina
Loggins and Messina: American soft-rock duo of Kenny Loggins and Jim Messina, formed accidentally in 1971 from Loggins's solo debut Sittin' In; eight albums, 16 million sold, split 1976, reunited 2005.
Logi Einarsson
Logi Einarsson is an Icelandic Social Democratic Alliance politician who has served as Minister of Culture, Innovation and Higher Education and for Nordic Co-operation since 2024.
Logic
Logic, also known as Logike, is the systematic study of valid inference, which patterns of reasoning preserve truth from premises to conclusion, now underpinning mathematics, philosophy, and computer science.
Logic (rapper)
Logic, born Sir Robert Bryson Hall II (1990, Rockville, Maryland), is an American rapper of the Young Sinatra mixtape era and Def Jam years whose 2017 suicide-prevention hit "1-800-273-8255" peaked at No. 3 on the Billboard Hot 100 and earned two Grammy nominations. Not the UK electronic musician, the Louis Logic underground rapper, or Logic Pro software.
Logic analyzer
A logic analyzer, also known as a digital logic analyser, is a test instrument that records digital signals as 1s and 0s, invented in 1973 for debugging microprocessor systems.
Logic bomb
A logic bomb is malicious code inserted into a software system that lies dormant until a trigger, like a specific date or event, sets off its harmful payload.
Logic Colloquium
The Logic Colloquium is the European Summer Meeting of the Association for Symbolic Logic, an annual logic conference first held in Oxford in 1956 and one of the ASL's two major meetings.
Logic discography
The discography of the American rapper Logic (Sir Robert Bryson Hall II) spans studio albums, mixtapes, and singles from 2009, with Everybody and Confessions of a Dangerous Mind reaching number one.
Logic gate
A logic gate, also called an electronic logic gate, is an electronic device that computes a Boolean function of its binary inputs, the elementary building block of digital circuits.
Logic in Computer Science (conference)
Logic in Computer Science (LICS) is an annual academic conference on logic in computer science, founded in 1986 and generally regarded as the field's most prestigious.
Logic model
A logic model, also called a theory of change or program theory, is a graphic depiction of a program linking resources, activities, and intended outcomes, widely used in program planning and evaluation.
Logic optimization
Logic optimization transforms Boolean logic networks into equivalent networks with less area, delay, or power, and is a core stage of logic synthesis in electronic design automation.
Logic Pro
Logic Pro, formerly Emagic Logic, is a digital audio workstation by Apple for recording, editing, and mixing music on Mac and iPad, acquired with Emagic in 2002.
Logic programming
Logic programming is a programming paradigm in which a program is a set of logical sentences and computation proceeds by inference, best known through the language Prolog, created in 1972.
Logic puzzle
A logic puzzle, also called a logic problem, is a puzzle solved purely by deduction from constraints that narrow a field of possibilities to exactly one solution.
Logic synthesis
Logic synthesis automatically converts an RTL or behavioral hardware description into a functionally equivalent gate-level netlist, using Boolean optimization and technology mapping, and is verified by logic-equivalence checking.
Logic-gated DNA nanorobot
A logic-gated DNA nanorobot is a nanoscale DNA device that stays closed until it senses a defined combination of molecules on a target cell, then releases its payload.
Logic-geometric programming
Logic-geometric programming (LGP) is an optimization-based formulation of combined task and motion planning in robotics, proposed by Marc Toussaint at IJCAI in 2015.
Lógica viva
Lógica viva is a 1910 book on reasoning and fallacies by the Uruguayan philosopher Carlos Vaz Ferreira, which argues that much error in thought comes from applying rigid logic to fluid real thinking.