Technology and the built world

Junkers

Junkers, also known as Junkers Flugzeug- und Motorenwerke AG, was a German industrial group founded by Hugo Junkers, best known for pioneering all-metal aircraft and the Ju 52 transport.

Junkers Ju 287

The Junkers Ju 287 was a German experimental jet bomber with forward-swept wings, the first swept-wing aircraft to fly, in 1944; later work continued in the Soviet Union as the EF-131.

Junkers Ju 390

The Junkers Ju 390 was a German six-engine long-range aircraft of World War II, developed from the Ju 290 and submitted for the Luftwaffe's Amerika Bomber program.

Junkers Ju 52

The Junkers Ju 52, nicknamed Tante Ju and Iron Annie, was a German tri-motor transport aircraft with a corrugated duralumin skin, flown from 1930 as the backbone of Lufthansa and the Luftwaffe.

The Junkers Ju 86 was a German twin-engine aircraft of the 1930s built as both a Luft Hansa airliner and a Luftwaffe medium bomber, later converted into a pressurized high-altitude reconnaissance plane.

Junkers Ju 87

The Junkers Ju 87, known as the Stuka, was a two-seat German dive bomber of the Second World War, feared for its accurate diving attacks and screaming sirens.

Junkers Ju 88

The Junkers Ju 88 was a twin-engine multirole combat aircraft of the German Luftwaffe, produced from 1939 to 1945 in greater numbers than any other twin-engine German type.

Junkers Jumo 004

The Junkers Jumo 004 was a German axial-flow turbojet designed by Anselm Franz, the world's first mass-produced operational turbojet, which powered the Me 262 and Arado Ar 234.

Junkers Jumo 205

The Junkers Jumo 205 is a German six-cylinder, twelve-piston opposed-piston two-stroke diesel aircraft engine developed in the early 1930s and used from the mid-1930s through World War II.

Junkers Jumo 222

The Junkers Jumo 222 was a 24-cylinder, liquid-cooled German aircraft engine of World War II, intended to power the Luftwaffe's Bomber B program but kept out of production by development troubles.

Junliangcheng power station

Junliangcheng power station (华电天津军粮城发电厂) is a coal- and gas-fired combined heat and power plant in Dongli District, Tianjin, China, rated at more than 1,700 MW.

Junmin Xue

Junmin Xue is a materials scientist at the National University of Singapore known for a 2022 Nature paper on light-triggered oxygen evolution in water splitting.

Juno (spacecraft)

Juno is a NASA solar-powered orbiter that has studied Jupiter from a polar orbit since July 4, 2016, launched August 5, 2011 as the second New Frontiers mission.

Juno Online Services

Juno Online Services, Inc., a New York-based American Internet service provider, launched free e-mail in 1996 and later merged with NetZero in 2001 to form United Online.

Oct 22, 2026

JunoCam

JunoCam is the color visible-light camera aboard NASA's Juno spacecraft, which has orbited Jupiter since 2016; built for public outreach, it lets the public pick targets and process images.

Junqiao Wu

Junqiao Wu is a materials scientist who chairs materials science and engineering at UC Berkeley, known for work on vanadium dioxide and a temperature-adaptive radiative roof coating published in Science in 2021.

Junuthula N. Reddy

Junuthula N. Reddy, known as J. N. Reddy, is a mechanical engineer at Texas A&M University whose plate and shell theories carry his name; he joined the National Academy of Engineering in 2015.

Jupiá hydroelectric plant

The Jupiá hydroelectric plant, officially Usina Hidrelétrica Engenheiro Souza Dias, is a hydroelectric plant on the Paraná River in Brazil, operating since 1969 with 1,551 MW of installed capacity.

Jupiter (supercomputer)

Jupiter is an exascale supercomputer operated by the Jülich Supercomputing Centre in Germany, the first European machine to reach one quintillion floating-point operations per second.

Jupiter Icy Moons Explorer

The Jupiter Icy Moons Explorer, or Juice, is a European Space Agency spacecraft launched in April 2023 to study Jupiter and the icy moons Ganymede, Europa, and Callisto.

Jupiter Icy Moons Orbiter

The Jupiter Icy Moons Orbiter (JIMO) was a proposed NASA mission, studied under Project Prometheus in the early 2000s, to orbit Jupiter's moons Callisto, Ganymede, and Europa with nuclear electric propulsion.

Jupyter Notebook

Jupyter Notebook is a free, open-source web application for interactive computing, developed under Project Jupyter, that combines executable code, explanatory text, and rich output in a single notebook document.

Oct 22, 2026

Jurakudai

Jurakudai (聚楽第), also read Jurakutei, was the castle-style residence and seat of government that Toyotomi Hideyoshi built in Kyoto, serving from 1587 until its demolition in 1595.

Jurca Gnatsum

The Jurca Gnatsum (Jurca MJ-7 Gnatsum) is a French homebuilt near-scale replica of the P-51 Mustang, designed by Marcel Jurca and first flown in 1969.

Jure Leskovec

Jure Leskovec is a Slovenian computer scientist, Professor of Computer Science at Stanford University, known for pioneering graph neural networks and co-authoring PyG, the most widely used graph neural network library.

Jürg Keller

Jürg Keller (Jurg Keller) is a Swiss-trained Australian environmental biotechnologist who founded and directed the Advanced Water Management Centre at the University of Queensland, working on biological nutrient removal and microbial fuel cells.

Jürgen Janek

Jürgen Janek (born 1964) is a German physical chemist who has held the physical chemistry chair at Justus Liebig University Giessen since 1999 and studies solid-state batteries.

Jürgen Kurths

Jürgen Kurths (born 1953) is a German physicist and complex-systems scientist at the Potsdam Institute for Climate Impact Research, known for work on synchronization of chaotic systems.

Jürgen Raps

Jürgen Raps (1951–2025) was a German airline pilot who served as Lufthansa's chief pilot and was one of the first pilots licensed to fly the Airbus A380.