42,772 articles
Hughes–Drever experiment
The Hughes–Drever experiment was a pair of 1959–60 nuclear magnetic resonance tests by Hughes at Yale and Drever at Glasgow that found no anisotropy of inertial mass, among the most accurate null results in physics.
Hugo Benioff
Hugo Benioff (1899–1968) was an American seismologist at Caltech known for charting the inclined deep-earthquake planes called Benioff zones and for designing the variable-reluctance seismograph.
Hugo Duminil-Copin
Hugo Duminil-Copin, born in 1985, is a professor at the University of Geneva and IHES who won the 2022 Fields Medal for solving longstanding problems on phase transitions in lattice models such as Ising and percolation.
Hugo Gyldén
Hugo Gyldén, born Johan August Hugo Gyldén, was a Finland-Swedish astronomer and celestial mechanician who headed the Stockholm Observatory from 1871 until his death in 1896, reforming perturbation theory.
Hugo Hadwiger
Hugo Hadwiger was a Swiss mathematician who took his doctorate at Bern in 1936 and is known for Hadwiger's conjecture in graph theory and his covering conjecture in convex geometry.
Hugo Steinhaus
Hugo Steinhaus (1887–1972) was a Polish mathematician, a student of David Hilbert, who co-founded the Lwów School of Mathematics and proved the Banach–Steinhaus theorem of 1927.
Hugo von Seeliger
Hugo von Seeliger, also known as Hugo Hans Seeliger, was a German astronomer who held the Munich chair of astronomy and directed the Bogenhausen observatory from 1882.
Hugo von Zeipel
Hugo von Zeipel, full name Edvard Hugo von Zeipel, was a Swedish astronomer (1873 to 1959) whose 1924 analysis of rotating stars produced the von Zeipel theorem and gravity-darkening law.
Hugoniot
A Hugoniot is the curve of pressure-volume states a material can reach behind a shock wave, the primary experimental product of shock-compression physics and a foundation for equation-of-state models.
Hugues de Riedmatten
Hugues de Riedmatten is an experimental physicist and ICREA Research Professor at ICFO in Barcelona who works on quantum memories and quantum repeaters for long-distance quantum communication.
Hui Cao
Hui Cao is a physicist and the John C. Malone Professor of Applied Physics at Yale University, known for random lasers, wave-chaotic microcavity lasers, and a compact chip-scale spectrometer.
Huib J. Bakker
Huib J. Bakker is a Dutch physicist at AMOLF in Amsterdam, a pioneer of femtosecond vibrational spectroscopy who was the first to apply it to liquid water in 1997.
Huijun Zhao
Huijun Zhao (赵惠军) is an Australian electrochemist and Emeritus Professor at Griffith University, known for nanostructured and single-atom electrocatalysts for water splitting, renewable hydrogen, and the PeCOD water-quality sensor.
Huiming Bao
Huiming Bao (鲍惠铭) is a Chinese isotope geochemist who used sulfate oxygen-17 anomalies to show ultra-high CO2 after a global glaciation about 630 million years ago.
Hulse–Taylor pulsar
The Hulse–Taylor pulsar (PSR B1913+16) is the first binary pulsar, discovered by Russell Hulse and Joseph Taylor in 1974, whose decaying orbit confirmed gravitational waves.
Human Cell Atlas
The Human Cell Atlas is an international research consortium mapping every cell type in the human body, co-founded in 2016 by Aviv Regev and Sarah Teichmann.
Human computer
A human computer was a person employed to perform mathematical calculations by hand, a job recorded since 1613 and lasting at NASA into the 1950s and beyond.
Human Development Report
The Human Development Report is an annual UNDP publication, first published in 1990 under Mahbub ul Haq, that introduced the Human Development Index measuring health, education, and income.
Human Frontier Science Program
The Human Frontier Science Program (HFSP) is an international program funding basic research in the life sciences through grants and postdoctoral fellowships, based in Strasbourg, France.
Human heredity
Human Heredity is an English-language, peer-reviewed journal of human genetics published by S. Karger AG in Basel, Switzerland; founded in 1948, it took its current name in 1969.
Human Mortality Database
The Human Mortality Database (HMD) is a free open-access database of mortality and population data for 41 countries, launched in 2002 and hosted by UC Berkeley and the Max Planck Institute.
Human power
Human power is the rate at which the human body performs mechanical work, measured in watts, ranging from about 75 W sustained to 2500 W peak in elite cyclists.
Human voice
Human voice: sound produced by airflow through the larynx vibrating the vocal folds, shaped by vocal tract resonators; basis of speech, singing, and nonverbal vocalizations; source-filter model, voice disorders, and vocal biomarkers.
Humber Zero
Humber Zero is a carbon capture project at Immingham on the Humber estuary, England, led by Phillips 66 and VPI Immingham to cut industrial CO2 emissions.
Humboldt Current
The Humboldt Current, also called the Peru Current, flows northward along the coasts of Chile, Peru, and Ecuador, driving one of Earth's most productive marine ecosystems.
Humbucker
A humbucker, also known as a humbucking pickup, is an electric guitar pickup with two oppositely wound coils that cancels mains hum while producing a fuller, warmer tone.
Hume's principle
Hume's principle is an abstraction principle in the philosophy of arithmetic stating that numbers of things are equal exactly when the things can be paired one to one.
Humeros, Los
Los Humeros is a large Pleistocene-Holocene silicic caldera complex in the Trans-Mexican Volcanic Belt, Puebla, Mexico, hosting one of the country's operating geothermal fields since 1990.
Humic acid
Humic acid is the fraction of soil organic matter that dissolves in alkali and precipitates when acidified, first extracted by Achard in 1786 and used to improve soil and crops.
Humic substances
Humic substances are complex organic compounds of biological origin, classified by solubility into humic acid, fulvic acid, and humin, and making up 50–75% of dissolved organic carbon in natural waters.