All articles starting with H
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Hammerhead shark
Hammerhead sharks (family Sphyrnidae, genera Sphyrna and Eusphyra) are sharks with a hammer-shaped cephalofoil bearing eyes and electroreceptors; eight to nine species, including scalloped, great, smooth, and bonnethead; threatened by fin fisheries, CITES Appendix II since 2013.
Hammerskins
Hammerskins, or Hammerskin Nation (HSN), a neo-Nazi racist skinhead group founded in Dallas in 1988, known for its crossed-hammers logo from Pink Floyd's The Wall, white power music events, and violent hate crimes.
Hammersmith
Hammersmith is a west London district on the north bank of the Thames in Hammersmith and Fulham, W6, known for the Lyric Theatre, Eventim Apollo, riverside pubs, and the closed 1887 Bazalgette suspension bridge.
Hammersmith & City line
The Hammersmith & City line is a London Underground line running 25.5 km from Hammersmith to Barking, shown in pink on the Tube map since 1990.
Hammersmith Apollo
Hammersmith Apollo, now the Eventim Apollo, is a Grade II listed Art Deco venue in Hammersmith, London, opened in 1932 as the Gaumont Palace cinema, renamed Hammersmith Odeon in 1962, and owned since 2012 by AEG and CTS Eventim.
Hammerspace
Hammerspace (also hammerspace) is a fan-cooned anime-fandom term from the mid-1990s for an extradimensional storage space in cartoons, comics, and games; unrelatedly, Hammerspace is a data-platform software company.
Hammett equation
The Hammett equation, also known as Hammett analysis, is a linear free-energy relationship in physical organic chemistry relating reaction rates and equilibria to substituent electronic effects.
Hammeum
Hammeum (Hammeo, Acmeon) was a Roman road station in Moesia Superior at modern Prokuplje, Serbia, on the Naissus-Lissus road, a junction toward Scupi, with remains at Hisar hill and Latinska crkva.
Hamming bound
The Hamming bound, also called the sphere-packing bound, is an upper limit on the size of an error-correcting code with given length and minimum distance.
Hamming code
The Hamming code, or Hamming coding, is a family of error-correcting codes introduced by Richard Hamming at Bell Labs in 1950 that locates and corrects single-bit errors in data.
Hamming distance
The Hamming distance between two equal-length strings is the number of positions where their symbols differ, named for Richard Hamming, who introduced it in 1950.
Hammir Singh
Hammir Singh (हम्मीर सिंह) was a 14th-century ruler of Mewar in present-day Rajasthan who recovered Chittor from the Delhi Sultanate and first ruled as Maharana.
Hammira
Hammira (हम्मीर) was a Chauhan ruler of the fortress of Ranthambhor in Rajasthan from 1283 to 1301, dying in 1301 resisting the sultan Alauddin Khalji of Delhi.
Hammira Mahakavya
The Hammira Mahakavya (हम्मीर महाकाव्य) is a Sanskrit court epic by the Jain poet Nayachandra Suri, composed around 1400, narrating Hammira Chauhan's defeat by Alauddin Khalji.
Hammira Raso
Hammira Raso (हम्मीर रासो) is the title of one or more Rajasthani and Hindi heroic poems about Hammira of Ranthambhor and his conflict with Alauddin Khalji.
Hammiradeva
Hammiradeva (हम्मीरदेव) was a Chauhan king who ruled the fortress of Ranthambore in present-day Rajasthan from 1283 to 1301, dying in 1301 resisting the Delhi Sultan Alauddin Khalji's siege.
Hammock
Hammock: a fabric, rope, or netting sling suspended between two points, used for swinging, sleeping, or resting; of unclear origin, first recorded by Columbus, adopted by navies, and now a popular camping alternative to tents.
Hammond organ
The Hammond organ is an electric organ invented by Laurens Hammond in 1934, whose tone-wheel sound, above all on the B-3, shaped jazz, gospel, blues, and rock.
Hammond, Indiana
Hammond, Indiana: Lake County city 20 miles south of Chicago, founded 1869 around the George H. Hammond slaughterhouse, incorporated 1883; population 77,879 (2020), retail downtown, Wolf Lake parks, and a 2026 Chicago Bears stadium proposal.
Hammuda ibn Ali
Hammuda ibn Ali (حمودة بن علي), born 1759, was the Husainid bey of Tunis from 1782 to 1814, ending tribute to Algiers, defeating Venice, and restoring Tripoli.
Hammuda Pasha Bey
Hammuda Pasha Bey (حمودة باشا باي) was the second bey of the Muradid dynasty of Tunis, ruling from 1631 to 1666 as a major builder in the capital.
Hammudid dynasty
The Hammudid dynasty was a Berber Muslim dynasty of Idrisid descent that ruled Ceuta, Malaga, and Algeciras in al-Andalus and the Maghrib from 1016 to 1058.
Hammurabi
Hammurabi (Hammurapi), sixth king of the Amorite First Dynasty of Babylon, reigned 1792–1750 BCE (Middle Chronology) and is known for the 282-law stele in the Louvre, found at Susa in 1901–02 and long debated as a law code versus royal monument.
Hammurabi II of Yamhad
Hammurabi II was a king of Yamhad, an Amorite kingdom whose capital was Halab (modern Aleppo, Syria), ruling in the middle of the 17th century BC.
Hammurabi's defeat of Elam
Hammurabi's defeat of Elam was a war fought around 1764 BC in which Babylon, allied with Mari and other states, ended Elamite suzerainty over Mesopotamia, marking the first step in Hammurabi's rise to dominance.
Hammurapih of Hana
Hammurapih of Hana, also known as Hammurapi of Hana, was a king of the land of Hana on the middle Euphrates in the sixteenth century BC.
Hamnet (film)
Hamnet (2025) is Chloé Zhao's drama, adapted from Maggie O'Farrell's novel, starring Jessie Buckley and Paul Mescal as Agnes and Shakespeare; it imagines their son's 1596 death inspiring Hamlet, and won the Golden Globe for Best Drama and two BAFTAs.
Hamnet Shakespeare
Hamnet Shakespeare (1585–1596), only son of William Shakespeare and Anne Hathaway, twin of Judith; died at 11, cause unrecorded. His name was interchangeable with Hamlet, fueling speculation about the play's origins.
Hamon (crater on Iapetus)
Hamon is a 96-km-wide impact crater on Saturn's moon Iapetus at 10.6°N, 270°W, IAU-approved in 1982 and named for a joint commander of Charlemagne's Eighth Division in The Song of Roland, the naming theme for Iapetus features.
Hamoon Amusement park
Hamoon Amusement Park (شهربازی هامون) is a theme park in Mehrshahr, Karaj, Alborz Province, Iran, on Eram Boulevard inside Hamoon Park opposite Pearl Palace; open 10:00 to midnight daily, rated 3.7 of 5.