All articles starting with a number or symbol
13,599 articles
6-Methylnicotine
6-Methylnicotine (6MN, Metatine, Nixodine) is a synthetic nicotine analog, C11H16N2, with an extra methyl on the pyridine ring; it activates nicotinic receptors, appears in Spree Bar vapes, evades FDA tobacco rules, and shows distinct metabolism and toxicity from nicotine.
6-phosphofructo-2-kinase
6-phosphofructo-2-kinase (PFK-2) is the N-terminal kinase domain of the bifunctional enzyme PFK-2/FBPase-2, which makes and degrades fructose 2,6-bisphosphate, a potent allosteric activator of glycolysis and inhibitor of gluconeogenesis.
6-phosphogluconate dehydrogenase deficiency
6-phosphogluconate dehydrogenase deficiency (6PGD deficiency, ORPHA:99135) is a rare inherited red cell enzymopathy of the pentose phosphate pathway causing well-compensated chronic nonspherocytic hemolytic anemia, far rarer than G6PD deficiency.
6-pyruvoyl tetrahydropterin synthase/QueD family
6-pyruvoyl tetrahydropterin synthase/QueD family (PTPS, EC 4.2.3.12; QueD/PTPS-I) of tunnel-fold Zn enzymes converting H2NTP: mammalian PTPS makes PPH4 in tetrahydrobiopterin synthesis, bacterial QueD makes CPH4 for queuosine, with PTPS-II/III subgroups.
6:00 P.M. (The Pitt season 1)
"6:00 P.M." (The Pitt season 1) is the twelfth episode of The Pitt, aired March 20, 2025 on Max, written by Joe Sachs and R. Scott Gemmill, directed by Amanda Marsalis; the first of three mass-casualty hours after the PittFest shooting, and an Emmy directing nominee.
6:00 P.M. (The Pitt season 2)
"6:00 P.M." is episode 12 of The Pitt season 2 (HBO Max, aired March 26, 2026), directed by Amanda Marsalis and written by Danny Hogan and R. Scott Gemmill. It centers on Dana Evans subduing a patient who assaulted nurse Emma Nolan, then clashing with Robby over her methods and his sabbatical; it holds a 100% Tomatometer.
6:16 in LA
"6:16 in LA" is a Kendrick Lamar diss track posted on Instagram May 3, 2024, in his feud with Drake, titled to mock Drake's timestamp song series and produced with Jack Antonoff and Sounwave.
6.5×52mm Carcano
The 6.5×52mm Carcano, also known as the 6.5mm Mannlicher-Carcano, is a rimless Italian military rifle cartridge adopted around 1890 for the Modello 1891 Carcano rifle.
6.5×55mm Swedish
The 6.5×55mm Swedish, also called 6.5×55 SE or Swedish Mauser, is a rifle cartridge adopted by Sweden and Norway in 1894, still popular for hunting in Scandinavia.
6.5mm Creedmoor
The 6.5mm Creedmoor (6.5 CM) is a centerfire rifle cartridge introduced by Hornady in 2007 for long-range competition, later adopted for hunting, law enforcement, and military sniper use.
6.5mm Grendel
The 6.5mm Grendel is a centerfire rifle cartridge released in 2003 by Alexander Arms for the AR-15, using efficient 6.5mm bullets for long-range accuracy with about half the recoil of 7.62mm NATO.
6.8mm Remington SPC
The 6.8mm Remington SPC, or 6.8x43mm Special Purpose Cartridge, is an intermediate rifle cartridge developed by Remington with U.S. Army Special Forces for the M4 carbine.
6'-Sialyllactose
6'-Sialyllactose (6'-SL) sodium salt, a sialylated human milk oligosaccharide trisaccharide and isomer of 3'-SL, produced by E. coli fermentation and approved in the EU, US GRAS notices, and Australia for infant formula.
60 (number)
60 (sixty, Roman numeral LX) is the natural number following 59, best known as the base of the Babylonian sexagesimal system behind minutes, hours, and degrees.
60 Days In
60 Days In is an A&E reality docuseries, produced by Lucky 8 TV, in which volunteer civilians go undercover as inmates in county jails such as Clark County, Indiana, Fulton County, and Utah County for 60 days to expose drugs and corruption.
60 Echo
60 Echo is a large main-belt asteroid about 60 km across, discovered by James Ferguson in 1860 and named after the nymph of Greek mythology.
60 Hudson Street
60 Hudson Street, formerly the Western Union Building, is a 24-story Art Deco Tribeca skyscraper and one of the world's most important internet exchange points.
60 metres
60 metres (60-meter dash): indoor track and field sprint over a straight 60 m course, a World Indoor Championships event. Men's ratified record 6.34 s by Christian Coleman (2018); smallest sex gap of the sprints at 8.6%.
60 Minutes
60 Minutes is CBS's Sunday-evening news magazine, created by Don Hewitt and premiered September 24, 1968, known for its ticking stopwatch, 52 straight seasons as America's #1 news program, and 2026 turmoil under Bari Weiss and Nick Bilton.
60-meter band
The 60-meter band is an amateur radio allocation near 5 MHz (5351.5 to 5366.5 kHz internationally), shared with government services and suited to regional NVIS communication.
600 Musa
600 Musa (1906 UM) is a roughly 25 km S-type main-belt asteroid discovered 14 June 1906 by J. H. Metcalf at Taunton; it orbits at 2.66 au with a 4.34-year period and rotates in 5.886 hours.
600-cell
The 600-cell, also called the hexacosichoron, is the convex regular 4-polytope, the four-dimensional analog of the icosahedron, bounded by 600 tetrahedral cells, 1200 triangular faces, 720 edges, and 120 vertices.
600-ship Navy
The 600-ship Navy was the Reagan administration's 1980s naval expansion goal, driven by Secretary John Lehman, to grow the fleet from about 460 to 600 ships by 1990 with 15 carrier battle groups; the fleet neared but never fully reached the target.
6002 Eetion
6002 Eetion (1988 RO) is a Jupiter Trojan asteroid discovered 8 September 1988 at Brorfelde by P. Jensen, orbiting at 5.23 au with 15.6 degree inclination, absolute magnitude 10.59, not potentially hazardous.
601 Nerthus
601 Nerthus (1906 UN) is a large main-belt asteroid about 75.5 km across, discovered 21 June 1906 at Heidelberg by Max F. Wolf, orbiting the Sun every 5.56 years, rotating in 13.59 hours, and named for a Nordic goddess.
602 Marianna
602 Marianna (1906 TE), a large C-type main-belt asteroid discovered by Joel Metcalf on 16 February 1906 at Taunton; about 110 km across, 5.42-year orbit, 35.20-hour rotation, not potentially hazardous.
603 Timandra
603 Timandra (A906 DG, 1906 TJ) is a 13.7-km main-belt asteroid discovered by Joel Metcalf on 16 February 1906 at Taunton; slow 330.1-hour rotator, not hazardous.
604 Tekmessa
604 Tekmessa (1906 TK) is a ~65 km main-belt asteroid discovered 16 February 1906 at Taunton by Joel Metcalf, alongside 602 Marianna and 603 Timandra; semi-major axis 3.1561 au, Xc class.
605 Juvisia
605 Juvisia (1906 UU, A906 QJ) is a ~70 km dark main-belt asteroid discovered by M. F. Wolf at Heidelberg in 1906; a = 3.003 AU, i = 19.63°, period 5.2 years, no close Earth approaches.
60558 Echeclus
60558 Echeclus (174P/Echeclus, 2000 EC98) is a Centaur discovered by Spacewatch in 2000 that shows cometary outbursts, notably a 2005 event about 30 times stronger than other Centaurs, with a 64.6 km nucleus and dual asteroid-comet designation.