The term engineering is derived from the
Latiningenium, meaning "cleverness". (Full article...)
Engineers, as practitioners of
engineering, are
professionals who
invent,
design, analyze, build and test
machines,
complex systems,
structures,
gadgets and
materials to fulfill functional objectives and requirements while considering the limitations imposed by practicality, regulation, safety and cost. The word engineer (
Latiningeniator, the origin of the Ir. in the title of engineer in countries like Belgium and The Netherlands) is derived from the Latin words ingeniare ("to contrive, devise") and ingenium ("cleverness"). The foundational qualifications of a licensed professional engineer typically include a four-year
bachelor's degree in an engineering discipline, or in some jurisdictions, a
master's degree in an engineering discipline plus four to six years of peer-reviewed professional practice (culminating in a project report or thesis) and passage of engineering board examinations. (Full article...)
A protest group was formed to resist the proposed construction, and attracted support from the botanist and environmental campaigner
David Bellamy. Despite the opposition,
planning permission was granted in 2005 and construction began in 2007. Although work on the project was hampered by harsh weather, difficult terrain, and previous mining activity, the wind farm was officially opened on 25 September 2008 after "years of controversy", at a cost of £50 million. (Full article...)
The Charpy impact test, also known as the Charpy V-notch test, is a
standardized high
strain-rate test which determines the amount of
energy absorbed by a material during
fracture. This absorbed energy is a measure of a given material's notch
toughness and acts as a tool to study temperature-dependent ductile-brittle transition. It is widely applied in industry, since it is easy to prepare and conduct and results can be obtained quickly and cheaply. A disadvantage is that some results are only comparative.
The test was developed around 1900 by S.B. Russell (1898, American) and
Georges Charpy (1901, French). The test became known as the Charpy test in the early 1900s due to the technical contributions and standardization efforts by Charpy. The test was pivotal in understanding the fracture problems of ships during WWII.
Today it is utilized in many industries for testing materials, for example the construction of pressure vessels and bridges to determine how storms will affect the materials used.
Bell was an energetic and skilful entrepreneur as well as an innovative
metallurgist. He was involved in multiple partnerships with his brothers to make iron and
alkali chemicals, and with other pioneers including
Robert Stirling Newall to make steel cables. He pioneered the large-scale manufacture of aluminium at his Washington works, conducting experiments in its production, and in the production of other chemicals such as the newly discovered element
thallium. He was a director of major companies including the
North Eastern Railway and the
Forth Bridge company, then the largest bridge project in the world. (Full article...)
Little Boy was developed by
Lieutenant CommanderFrancis Birch's group at the
Manhattan Project's
Los Alamos Laboratory during World War II, a reworking of their abandoned
Thin Man nuclear bomb. Like Thin Man, it was a
gun-type fission weapon. It derived its explosive power from the
nuclear fission of
uranium-235, whereas Thin Man was based on fission of
plutonium-239. Fission was accomplished by shooting a hollow cylinder (the "bullet") onto a solid cylinder of the same material (the "target") by means of a charge of
nitrocellulose propellant powder. Little Boy contained 64 kilograms (141 lb) of
highly enriched uranium, although less than a kilogram underwent nuclear fission. Its components were fabricated at three different plants so that no one would have a copy of the complete design. Unlike the implosion design, which required sophisticated coordination of shaped explosive charges, the gun-type design was considered almost certain to work so it was never tested before its first use at Hiroshima. (Full article...)
Image 5
1869 Birdsill Holly fire-hydrant Birdsill Holly Jr. (November 8, 1820 – April 27, 1894) was an American mechanical engineer and inventor of water
hydraulics devices. He is known for inventing mechanical devices that improved city water systems and patented an improved fire hydrant that is similar to those used currently for firefighting. Holly was a co-inventor of the Silsby
steam fire engine. He founded the Holly Manufacturing Company that developed into the larger Holly Steam Combination Company that distributed heat from a central station and developed commercial
district heating for cities in the United States and Canada. (Full article...)
A chicken gun or flight impact simulator is a large-diameter, compressed-air gun used to fire bird carcasses at aircraft components in order to simulate high-speed
bird strikes during the aircraft's flight.
Jet engines and aircraft
windshields are particularly vulnerable to damage from such strikes, and are the most common target in such tests. Although various species of bird are used in aircraft testing and certification, the device acquired the common name of "chicken gun" as
chickens are the most commonly used 'ammunition' owing to their ready availability. (Full article...)
Image 7
Schematic representation of the Dirac delta function by a line surmounted by an arrow. The height of the arrow is usually meant to specify the value of any multiplicative constant, which will give the area under the function. The other convention is to write the area next to the arrowhead. In
mathematical analysis, the Dirac delta function (or δ distribution), also known as the unit impulse, is a
generalized function on the
real numbers, whose value is zero everywhere except at zero, and whose
integral over the entire real line is equal to one. Thus it can be represented heuristically as
Edmundo Gómez Moreno (born 17 February 1991), better known by his stage name Raymix, is a Mexican musician and
aerospace engineer. Nicknamed El Rey de la Electrocumbia ("The King of Electrocumbia"), Raymix started his music career in the early 2010s, when he joined a trance project called Light & Wave with two other Mexican musicians. Their song "Feeling the City" was featured on the
Armin van Buuren radio show A State of Trance. In 2013, Raymix was invited to work in a
NASA educative internship, where he helped to develop a satellite.
Overhead View of Tehachapi Energy Storage Project, Tehachapi, CA
The Tehachapi Energy Storage Project (TSP) is a 8
MW/32
MWhlithium-ion battery-based
grid energy storage system at the Monolith Substation of
Southern California Edison (SCE) in
Tehachapi, California, sufficient to power between 1,600 and 2,400 homes for four hours. At the time of commissioning in 2014, it was the largest lithium-ion battery system operating in
North America and one of the largest in the world. TSP is considered to be a modern-day energy storage pioneer with significant accomplishments that have proven the viability of utility-scale energy storage using lithium-ion technology. While originally envisioned as a
research and development project, TSP operated as a
distribution-level resource for SCE and for calendar year 2020, SCE reported that TSP operated in the
wholesale energy market with revenue exceeding operating and maintenance costs. In 2021, SCE began the decommissioning of TSP, which was followed by formal decommissioning by state regulators in 2022. The physical dismantlement of TSP is expected to be completed by the end of 2022. (Full article...)
The tubes were constructed using the
shield method and are each 6,550 feet (2,000 m) long and 15.5 feet (4.7 m) wide. The interiors are lined with cast-iron "rings" formed with concrete. The tubes descend 91 to 95 feet (28 to 29 m) below the
mean high water level of the East River, with a maximum gradient of 3.1 percent. During the tunnel's construction, a house at
58 Joralemon Street in Brooklyn was converted into a ventilation building and emergency exit. (Full article...)
Image 11
Fizeau–Foucault apparatus may refer to either of two nineteenth-century experiments to measure the speed of light:
The Avrocar S/N 58-7055 (marked AV-7055) on its rollout.
The Avro Canada VZ-9 Avrocar is a
VTOL aircraft developed by
Avro Canada as part of a secret U.S. military project carried out in the early years of the
Cold War. The Avrocar intended to exploit the
Coandă effect to provide lift and thrust from a single "turborotor" blowing exhaust out of the rim of the disk-shaped aircraft. In the air, it would have resembled a
flying saucer.
Originally designed as a
fighter-like aircraft capable of very high speeds and altitudes, the project was repeatedly scaled back over time and the
U.S. Air Force eventually abandoned it. Development was then taken up by the
U.S. Army for a tactical combat aircraft requirement, a sort of high-performance
helicopter. In flight testing, the Avrocar proved to have unresolved thrust and stability problems that limited it to a degraded, low-performance
flight envelope; subsequently, the project was cancelled in September 1961. (Full article...)
Nichols remained with the Manhattan Project after the war until it was taken over by the
Atomic Energy Commission in 1947. He was the military liaison officer with the Atomic Energy Commission from 1946 to 1947. After briefly teaching at the
United States Military Academy at West Point, he was promoted to major general and became chief of the
Armed Forces Special Weapons Project, responsible for the military aspects of atomic weapons, including logistics, handling and training. He was deputy director for the Atomic Energy Matters, Plans and Operations Division of the Army's general staff, and was the senior Army member of the military liaison committee that worked with the Atomic Energy Commission. (Full article...)
HDMI implements the
ANSI/CTA-861 standard, which defines video formats and waveforms, transport of compressed and uncompressed
LPCM audio, auxiliary data, and implementations of the
VESA EDID. CEA-861 signals carried by HDMI are electrically compatible with the CEA-861 signals used by the
Digital Visual Interface (DVI). No signal conversion is necessary, nor is there a loss of video quality when a DVI-to-HDMI adapter is used. The
Consumer Electronics Control (CEC) capability allows HDMI devices to control each other when necessary and allows the user to operate multiple devices with one handheld
remote control device. (Full article...)
Image 3Engineers conferring on prototype design, 1954 (from Engineer)
Image 4Archimedes is regarded as one of the leading scientists in
classical antiquity whose ideas have underpinned much of the practice of engineering. (from Engineer)
Image 8Design of a
turbine requires collaboration of engineers from many fields, as the system involves mechanical, electro-magnetic and chemical processes. The
blades,
rotor and stator as well as the
steam cycle all need to be carefully designed and optimized. (from Engineering)
Image 27A drawing for a
steam locomotive. Engineering is applied to
design, with emphasis on function and the utilization of mathematics and science. (from Engineering)
Image 29The application of the steam engine allowed coke to be substituted for charcoal in iron making, lowering the cost of iron, which provided engineers with a new material for building bridges. This bridge was made of
cast iron, which was soon displaced by less brittle
wrought iron as a structural material. (from Engineering)
This list was generated from
these rules. Questions and feedback
are always welcome! The search is being run daily with the most recent ~14 days of results. Note: Some articles may not be relevant to this project.
Featured articles are displayed here, which represent some of the best content on English Wikipedia.
.JPG)
.jpg)
Commons
Wikibooks
Wikidata
Wikinews
Wikiquote
Wikisource
Wikiversity
Wiktionary
