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Hywind spar floating foundation
The Hywind spar is a floating offshore wind turbine foundation developed by Equinor, basis of the first floating wind turbine in 2009 and the first floating wind farm.
HŽ series 1142
The HŽ series 1142 is a class of electric locomotives operated by Croatian Railways, built by Rade Končar from 1981 and used exclusively for passenger trains, nicknamed Brena.
Hzero Technology (Haizhi Technology)
Beijing Haizhi Technology Group (Hzero Technology, 海致科技) is a Chinese graph-computing AI company, founded in 2013, that builds knowledge-graph software and AI agents for enterprise customers.
ʻIolani Palace
ʻIolani Palace in downtown Honolulu, built from 1879 to 1882, is the only royal palace in the United States and now a museum and National Historic Landmark.
I Am Rich
I Am Rich was a $999.99 iPhone app by Armin Heinrich, sold on Apple's App Store in 2008, that displayed only a glowing red gem.
I-20 (form)
The Form I-20, formally the Certificate of Eligibility for Nonimmigrant Student Status, is issued by certified American schools to accepted foreign students applying for F-1 or M-1 visas.
I-2K
I-2K, also written I-2000 for INSAT-2000, is a geostationary satellite bus from ISRO's U R Rao Satellite Centre, used for missions including GSAT, INSAT, and Hylas-1.
I-35W Mississippi River bridge
The I-35W Mississippi River bridge was an eight-lane steel deck truss bridge in Minneapolis, opened in 1967, that collapsed on August 1, 2007, killing 13 and injuring 145.
I-35W Mississippi River bridge collapse
The I-35W Mississippi River bridge collapse was the August 1, 2007, failure of an eight-lane Interstate 35W bridge in Minneapolis, Minnesota, that killed 13 people and injured 145.
I-35W Saint Anthony Falls Bridge
The I-35W Saint Anthony Falls Bridge is a ten-lane concrete bridge carrying Interstate 35W over the Mississippi River in Minneapolis, opened September 2008 to replace the bridge that collapsed in 2007, killing 13 people.
I-395 Signature Bridge
The I-395 Signature Bridge, formally the Fountain Bridge, is a six-arch concrete bridge carrying Interstate 395 through downtown Miami, set to become the largest concrete segmental arch bridge in the United States.
I-3K
The I-3K, also known as INSAT-3000, is a geostationary satellite bus developed by ISRO's U R Rao Satellite Centre for 3,000 to 3,500 kg communication satellites.
I-40 bridge disaster
The I-40 bridge disaster, also known as the Webbers Falls bridge collapse, killed 14 people near Webbers Falls, Oklahoma, when a barge struck the bridge in 2002.
I-400-class submarine
The I-400-class submarine (Sen Toku) was a class of Imperial Japanese Navy submarine aircraft carriers of World War II, designed to carry and launch floatplane bombers.
I-66 Express Lanes
The I-66 Express Lanes are dynamically tolled lanes on Interstate 66 in Northern Virginia, free for HOV-3+ carpools and extended 22.5 miles to Gainesville in 2022.
I-77 Express Lanes
The I-77 Express Lanes are 26 miles of dynamically priced tolled lanes along Interstate 77 in the Charlotte, North Carolina region, connecting uptown Charlotte with Huntersville and Mooresville.
i-80 Gold Corp.
i-80 Gold Corp. is a Nevada-focused gold mining and development company created in 2021 as a spin-out of Premier Gold Mines during Equinox Gold's acquisition of Premier.
I-beam
An I-beam, also called a universal beam or rolled steel joist, is a structural beam with an I-shaped cross-section whose flanges and web make it efficient in bending.
I-COLLIDE
I-COLLIDE is an exact, interactive collision detection system for large-scale environments of convex polyhedra, presented by University of North Carolina researchers at the 1995 ACM Interactive 3D Graphics symposium.
I-joist
An I-joist is a prefabricated engineered wood joist with an I-shaped cross section, used for floor framing and roof rafters in residential construction since 1969.
i-Limb
The i-Limb is a myoelectric prosthetic hand in which each of the five digits is individually powered, first launched commercially in 2007 by the Scottish company Touch Bionics.
i-mode
i-mode (iモード) was a mobile Internet service launched by NTT DOCOMO in Japan in 1999, the world's first such platform, reaching 40 million subscribers before its 2026 shutdown.
I-Ready
I-Ready is a K-8 educational software suite by Curriculum Associates, launched in 2011, combining an adaptive diagnostic in reading and mathematics with personalized online instruction.
I-REC
The I-REC (International Renewable Energy Certificate) is an energy attribute certificate representing the environmental attributes of 1 MWh of renewable electricity, letting holders claim renewable consumption.
i-vector
An i-vector, or identity vector, is a low-dimensional fixed-length representation of a speech utterance, extracted by factor analysis for speaker recognition, language recognition, and speaker diarization.
I. Harry Mandil
I. Harry Mandil (1919–2006) was an American nuclear engineer who designed reactor cores for the Navy's nuclear fleet and the first US commercial nuclear power station at Shippingport.
I/O channel
An I/O channel is a programmable input-output processor in IBM architecture that executes channel programs to move data between peripherals and main memory, freeing the CPU.
I/Q imbalance compensation
I/Q imbalance compensation is the DSP and calibration techniques that correct amplitude and phase mismatches between the in-phase and quadrature branches of a modulator or demodulator.
I/Q modulator
An I/Q modulator is an electro-optic device that impresses in-phase and quadrature signals onto an optical carrier, generating QPSK and QAM formats in coherent optical systems.
I/R Oil Field
The I/R Oil Field, also written I&R or Irwan, is an onshore oil field in the Murzuq Basin of southwest Libya, discovered in 2005 and producing since 2008.