All articles A–Z

519,064 articles

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IPv6 address

An IPv6 address is a 128-bit identifier assigned to a device interface under Internet Protocol version 6, replacing IPv4's 32-bit addresses with roughly 340 undecillion possibilities.

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IPv6 packet

An IPv6 packet is the unit of data transmitted over Internet Protocol version 6, with a fixed 40-octet header, optional extension headers, and a payload.

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Ipy (steward)

Ipy, also written Apy, was a royal steward of late Eighteenth Dynasty Egypt, serving under Amenhotep III, Akhenaten, and Tutankhamun, and owner of Amarna Tomb 10.

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Ipyr Labyrinthus

Ipyr Labyrinthus is a 76.97 km labyrinth terrain of intersecting valleys on Titan near the north pole (86.24N, 289W), IAU-approved December 14, 2020, and named after a Dune-series planet, home of House Thorvald.

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IPython

IPython, or Interactive Python, is an open-source command shell for interactive Python computing created by Fernando Pérez in 2001, known for introspection, tab completion, and magic commands.

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IQ and the Wealth of Nations

IQ and the Wealth of Nations is a 2002 book by Richard Lynn and Tatu Vanhanen arguing that national IQ differences explain much of the gap between rich and poor countries.

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IQ Capital

IQ Capital is a British venture capital firm in London and Cambridge, founded in 2007, that invests in deep tech startups from pre-seed to Series A.

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IQ classification

IQ classification, also called intelligent quotient classification, labels IQ score ranges with names like "average" or "superior", on a scale with a mean of 100 and standard deviation of 15.

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IQ Option

IQ Option is a retail online trading brand founded in 2013 in Limassol, Cyprus, offering CFDs and digital options; it began as a binary options broker before the EU banned them in 2018.

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IQ test

An IQ test is a standardized psychometric assessment measuring human intelligence, scored with a mean of 100 and used in diagnosing intellectual disability and giftedness.

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Iqaluit

Iqaluit, formerly Frobisher Bay, is the capital and largest city of Nunavut, Canada, on Baffin Island. Population about 7,400 to 9,000; government-dominated economy; housing growth limited by water capacity; no road links outside.

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Iqama

The iqama, also written Iqaamah (إقامة), is the second and final call to prayer in Islam, made immediately before prayer begins; in Sunni forms it repeats the adhan's words plus 'the prayer has been established'.

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Iqbal (इक़बाल) (film)

Iqbal (इक़बाल) is a 2005 Hindi sports drama directed by Nagesh Kukunoor, produced by Subhash Ghai's Mukta Arts, starring Shreyas Talpade as a deaf-mute aspiring cricketer coached by Naseeruddin Shah; it won two 2006 National Film Awards.

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Iqbal Academy Pakistan

Iqbal Academy Pakistan is Pakistan's government institution for research and publication on Allama Muhammad Iqbal, established in 1951 and headquartered in Lahore; it publishes Iqbal Review and Iqbaliyat.

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Iqbal Hamza

Iqbal Hamza (born 1968) is an Indian-born American molecular biologist at the University of Maryland whose laboratory identified HRG-1, the first known eukaryotic heme importer.

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Iqbal Masih

Iqbal Masih (اقبال مسیح), 1983–1995, Pakistani Christian boy sold into bonded carpet-weaving at age 4, escaped via the BLLF, helped free thousands of child laborers, won the 1994 Reebok Human Rights Award, and was murdered at 12 in Muridke.

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Iqbal Mohamed

Iqbal Hussain Mohamed is the independent MP for Dewsbury and Batley, elected in July 2024 with 41.1% against Labour's 22.9% on a pro-Gaza platform; Independent Alliance member who quit Corbyn's Your Party in November 2025.

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Iqd al-juman fi tarikh ahl al-zaman

Iqd al-juman fi tarikh ahl al-zaman (عقد الجمان في تاريخ أهل الزمان) is a universal Arabic chronicle by the Mamluk historian al-'Ayni, running from Creation to the mid-fifteenth century.

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IQE plc

IQE plc is a British compound semiconductor wafer manufacturer headquartered in Cardiff, Wales, founded in 1988 and listed on the AIM market of the London Stock Exchange.

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IQGAP1

IQGAP1 (IQ motif containing GTPase activating protein 1), also called p195 or SAR1, is a ubiquitous 190-kDa human scaffold protein at 15q26.1 that stabilizes Cdc42 and Rac1, integrates calmodulin and actin signaling, and acts as an oncogene in breast, gastric, and lung cancers.

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IQIYI

iQIYI (爱奇艺) is a Baidu-controlled Chinese streaming service on Nasdaq (IQ), founded 2010, known for VIP membership plus advertising, original dramas, and international expansion.

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IQM Quantum Computers

IQM Quantum Computers, legally IQM Finland Oy, is a Finnish company that builds full-stack superconducting quantum computers, founded in 2018 as an Aalto University spinout in Espoo.

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IQOO

iQOO, vivo's performance-focused smartphone sub-brand launched February 2019 ("I Quest On and On"), makes gaming flagships like the iQOO 15 with Snapdragon 8 Elite Gen 5, Q3 gaming chip, and 7,000 mAh battery.

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IQOS

IQOS is a heat-not-burn tobacco device by Philip Morris International that heats cigarette-sized tobacco sticks to about 482 degrees Fahrenheit without burning them, first launched in Japan in 2014.

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Iqqur Ipuš

Iqqur Ipuš (Iqqur Ipus) is an Akkadian divination series whose title means 'if he destroys, if he builds', classifying months and days as favorable or unfavorable for activities.

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Iqra Aziz (اقرا عزیز حسین)

Iqra Aziz (اقرا عزیز حسین), Pakistani Urdu-television actress born 1997 in Karachi; star of Ranjha Ranjha Kardi and Suno Chanda, married to Yasir Hussain since 2019.

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Iqra Choudhary

Iqra Choudhary (Iqra Hasan), Samajwadi Party MP from Kairana, Uttar Pradesh, in the 18th Lok Sabha; won the 2024 election at age 29 by 69,116 votes over BJP's Pradeep Kumar, from a family of MPs.

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Iqraa TV

Iqraa (قناة اقرأ) is the first Islamic satellite channel, launched October 21, 1998 from Rome by Saudi businessman Saleh Kamel's Arab Media Corporation/ART; distinct from the UK's IQRA TV (Sky 739, 2009).

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iQrypto

iQrypto SRL is a Belgian deep-tech startup based in Mons, founded by CEO Alessandro Brunetti in 2021, that develops quantum random number generators and ETRA data-acquisition hardware for quantum systems.

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Iqta' system

The iqta' system (اقطاع) remunerated soldiers and officials by assigning them land revenues instead of cash salary, first instituted by the Buyid amir Mu'izz al-Dawla in Iraq in 945–946.