All articles starting with H
20,046 articles
Heleomyzidae
Heleomyzidae (sun flies, heleomyzid flies) is a family of about 738 saprophagous fly species in 76 genera, superfamily Sphaeroceroidea, with spiny costal veins, larvae in carrion, dung, and fungi, and debated family limits.
Helfried Reinnagel
Helfried Reinnagel (1934-2007), East German 800m runner and GDR champion; anchor leg of the 4x1500m relay world record 15:11.4, Poznan 1958; later a Potsdam physician.
Helga Arendt
Helga Arendt (1964–2013), West German 400 m sprinter of SC Eintracht Hamm; 1989 World Indoor champion, 7th at Seoul 1988 Olympics; career ended by the 1990 Eintracht Hamm doping revelations; later a lawyer.
Helga Haase
Helga Haase, born Obschernitzki (1934–1989), was a German speed skater who competed for East Germany and won the 500 m at the 1960 Winter Olympics, the first GDR Winter gold.
Helga Lindner
Helga Lindner (later Haertel), 1951-2021, East German butterfly swimmer from Chemnitz; 1968 Olympic 200m butterfly silver behind Ada Kok, 1970 European champion, 200m fly European record holder.
Helga Seidler
Helga Seidler (born 1949, Olbernhau, Saxony) is an East German retired 400 m sprinter, 1972 Olympic 4x400 m relay champion in world-record 3:22.95, 1971 European 400 m champion, fourth in the 1972 Olympic 400 m.
Helge Adamsson
Helge Adamsson was a Swedish middle-distance runner with IF Linnéa Stockholm who set a 4 × 1500 meters relay world record of 16:37.0 with Edvin Wide in Norrköping on 2 August 1925.
Helge B. Bode
Helge B. Bode (Helge Björn Bode, born 1973) is a chemical biologist at the Max Planck Institute for Terrestrial Microbiology in Marburg who engineers bacterial enzymes that make natural products.
Helge Backander
Helge Bäckander (Helge Gustaf Samuel Bäckander, 1891–1958), Swedish gymnast and army officer from Jönköping, club Lidköpings GSS; won gold in the men's team Swedish system at Antwerp 1920 and led the Swedish team at Berlin 1936.
Helge Großhans
Helge Großhans is an RNA biologist and University of Basel professor at the Friedrich Miescher Institute, known for showing that mature microRNAs are actively degraded rather than stable.
Helge Gustafsson
Helge Gustafsson (Bror Helge Gustafsson, 1900–1981), Swedish gymnast from Ervalla, Örebro; won gold in the men's team Swedish system event for Sweden at the 1920 Antwerp Olympics, club Karolinska Läroverkets IF.
Helge Larsen
Helge Larsen (1905–1984) was a Danish Eskimo archaeologist and museum inspector at the National Museum of Denmark, best known for the 1939 discovery of the Ipiutak site in Alaska.
Helge Løvland
Helge Andreas Løvland (1890–1984), Norwegian soldier and athlete of IF Ørnulf, won the 1920 Antwerp Olympic decathlon gold, held a 1919 decathlon world record, and later led Norwegian sports administration.
Helge Thorsten Lumbsch
Helge Thorsten Lumbsch (born 1964, Frankfurt) is a German lichenologist, Chief Scientific Officer and Curator of Lichens at the Field Museum, Chicago; over 590 papers, 280+ new lichen species, Acharius Medal 2026.
Helge von Koch
Helge von Koch, full name Nils Fabian Helge von Koch, was a Swedish mathematician whose 1904 curve without a tangent became the early fractal known as the Koch snowflake.
Helgoland 513
Helgoland 513 is a German dystopian Sky Original series by Robert Schwentke, Veronica Priefer, and Florian Wentsch, premiered March 15, 2024: 513 pandemic survivors on Heligoland live under a deadly social ranking system. It was Sky Deutschland's last German fiction production.
Heli Rantanen
Heli Rantanen (born 1970, Lammi, Finland) is a Finnish javelin thrower, 1996 Atlanta Olympic champion with 67.94 m on her first throw; first Finnish woman to win Olympic athletics gold, retired 2001.
Heliac
A heliac is a type of stellarator, a magnetic fusion confinement device in which the magnetic axis winds helically around the torus, shaped by coils rather than plasma current.
Heliamphora
Heliamphora (sun pitchers, marsh pitchers) is a genus of about 21 to 24 carnivorous Sarraceniaceae pitcher plants endemic to the tepuis of Venezuela, Guyana, and northern Brazil, with pitfall traps, nectar spoons, and confirmed endogenous digestive enzymes.
Helian
Helian is a long lyric poem by the Austrian Expressionist poet Georg Trakl, written in the winter of 1912 and 1913 and first published in 1913 in his collection Gedichte.
Helian Bobo
Helian Bobo (赫连勃勃), courtesy name Quzi, was the founder and first emperor of the Xiongnu state of Xia, who built the capital Tongwan and seized Chang'an from the Jin.
Heliand
The Heliand is an epic Old Saxon poem of about 6,000 lines that retells the life of Jesus in Germanic alliterative verse, written around 830 to 840.
Helianthemum
Helianthemum (rock rose, sun rose) is the largest genus of Cistaceae, about 140 Palearctic taxa centered on the Mediterranean, with three radiating sections since the Late Miocene and hard-coated seeds needing scarification.
Helianthus
Helianthus (sunflowers) is a North American Asteraceae genus of 56 accepted species, including cultivated sunflower (H. annuus) and Jerusalem artichoke (H. tuberosus); domesticated ~4,000-5,000 years ago and a model for hybrid speciation.
Heliaramia
Heliaramia was a Roman military outpost in the Syrian Desert on the Tabula Peutingeriana road map, identified with Qasr el-Heir al-Gharbi, southwest of Palmyra in modern Syria.
Helical antenna
Helical antenna is a radiating structure formed by winding conductors into a helix, typically over a ground plane. Its concepts were established by John D. Kraus in 1947.
Helical gear
A helical gear is a cylindrical gear with teeth cut at an angle to its axis, making it smoother and quieter than a spur gear.
Helical gear geometry
Helical gear geometry is the set of concepts and formulas for cylindrical gears with teeth cut at a helix angle to the axis, producing smoother, quieter operation than spur gears.
Helical pile
A helical pile, also called a screw pile or helical anchor, is a steel deep foundation rotated into the ground like a screw, patented in 1833.
Helical tomotherapy
Helical tomotherapy, also known as tomotherapy, is an intensity-modulated radiation therapy technique in which a rotating fan beam traces a helix around the moving patient, with integrated CT image guidance.