omniomni/omni-engineering huggingface dataset:
BMW M67. The BMW M67 is an automobile diesel engine, used in the BMW 7 Series. It was first introduced in 1998, and used until 2009. The engine is a common rail turbodiesel V8 design, using double overhead camshafts and 32 valves. It is the first luxury car application of a bi-turbo diesel intercooled V8 engine. The 3.9-litre iteration won the "3-4 L" category of the International Engine of the Year award in 1999 and again in 2000. It was replaced by the 6-cylinder M57 engine.

Summary

M67D40
The M67D40 was introduced in 1998.

Applications:
  at 4000 rpm,  at 2000 rpm, with a 4700 rpm redline.
 1998-2000 E38 740d
  at 4000 rpm,  at 1750-2500 rpm, with a 4700 rpm redline.
 1999 Z9 concept
 2000-2001 E38 740d

M67TUD40

The M67TUD40 was introduced in 2002. M67TUD40 is also known as M67TUD39.

Applications:
  at 4000 rpm,  at 1900-2500 rpm, with a 4700 rpm redline.
 2002-2005 E65 740d.
 2004 Siemens DuoCombino tram

M67D44

The M67D44 was introduced in 2005.

Applications:
  at 4000 rpm,  at 1750-2500 rpm, with a 4700 rpm redline.
 2005-2006 E65 LCI (facelift) 745d.

M67TUD44
The M67TUD44 was introduced in 2006.

Applications:
 at 4000 rpm,  at 1900-2500 rpm, with a 4700 rpm redline.
 2006-2009 E65 LCI (facelift) 745d.

References 

M67
Diesel engines by model

V8 engines
Penetrating oil. Penetrating oil, also known as penetrating fluid, is a low-viscosity oil. It can be used to free rusted mechanical parts (such as nuts and bolts) so that they can be removed, because it can penetrate into the narrow space between the threads of two parts.  It can also be used as a cleaner; however, it should not be used as a general-purpose lubricant or a corrosion stopper. Using penetrating fluids as general-purpose lubricants is not advisable, because such oils are relatively volatile. As a result, much of the penetrating oil will evaporate in a short amount of time, leaving little residual lubricant. 

Other uses include removing chewing gum and adhesive stickers, and lessening friction on metal-stringed musical instruments.

External links 
 How to make penetrating oil, by Rob Goodier on "Engineering for change".

oils
MSQL. Mini SQL (abbreviated mSQL) is a lightweight database management system from Hughes Technologies.

History
In 1993–94 David Hughes developed a network monitoring and management system called Minerva. The design of this system required a database management system to store its configuration and working data. To enable future portability, Hughes elected to use a Structured Query Language interface between the application and the database management system, despite the fact that at the time there was no free or inexpensive SQL database management implementation available. Hughes therefore developed a translation program which provided an SQL interface to the free Postgres DBMS (which did not use SQL). This product was named miniSQL, or mSQL. In time it became clear that Postgres did not perform adequately on the low-specification systems used to run Minerva, so mSQL developed into a lightweight database management system in its own right, implementing a limited subset of the SQL standard, but performing well on minimally specified hardware.

mSQL was the first low-cost SQL-based database management system. Combined with the free Linux operating system, the availability of relatively powerful low-cost PC hardware, and the development of World Wide Web standards and technologies, mSQL was an important factor in the early development of interactive, dynamic web applications, particularly in the period 1994–1997, after which it was increasingly supplanted by the more highly featured MySQL. mSQL had a large and widespread install base by the late 1990s.

License
Despite being offered in source code form, and being strongly associated with open source software, mSQL itself has never been offered under an open source license.

mSQL is provided free for non-commercial use. A typical license for commercial use in 1997 would cost $170, compared to a "five-digit purchase price" for its full-featured competitors.

Current status
By 1996, development on mSQL began to stagnate and MySQL arose to fill that void. By 1999, MySQL had surpassed mSQL in popularity and today mSQL has less visibility. At this time the database system is more often licensed by other companies for use in their products than used by end-users directly.  mSQL is actively maintained and developed primarily to support its licensees and internal use within Hughes Technologies products and projects.  It is still provided under a license that allows its use free of charge for non-commercial, educational and charitable activities.  mSQL 4.4 was released in October 2021.

Host languages
mSQL originally supported several host languages:

 C, included with the software
 Perl
 Java via mSQL-JDBC
 Delphi
 Tcl
 PHP

See also
 List of relational database management systems
 Comparison of relational database management systems

References

External links
 

Proprietary database management systems
1993 software
Geometry template. A geometry template is a piece of clear plastic with cut-out shapes for use in mathematics and other subjects in primary school through secondary school.  It also has various measurements on its sides to be used like a ruler. In Australia, popular brands include Mathomat and MathAid.

Brands

Mathomat and Mathaid
Mathomat is a trademark used for a plastic stencil developed in Australia by Craig Young in 1969, who originally worked as an engineering tradesperson in the Government Aircraft Factories (GAF) in Melbourne before retraining and working as head of mathematics in a secondary school in Melbourne. Young designed Mathomat to address what he perceived as limitations of traditional mathematics drawing sets in classrooms, mainly caused by students losing parts of the sets. The Mathomat stencil has a large number of geometric shapes stencils combined with the functions of a technical drawing set (rulers, set squares, protractor and circles stencils to replace a compass). 

The template made use polycarbonate – a new type of thermoplastic polymer when Mathomat first came out – which was strong and transparent enough to allow for a large number of stencil shapes to be included in its design without breaking or tearing. The first template was exhibited in 1970 at a mathematics conference in Melbourne along with a series of popular mathematics teaching lesson plan; it became an immediate success with a large number of schools specifying it as a required students purchase. As of 2017, the stencil is widely specified in Australian schools, chiefly for students at early secondary school level. The manufacturing of Mathomat was taken over in 1989 by the W&G drawing instrument company, which had a factory in Melbourne for manufacture of technical drawing instruments. Young also developed MathAid, which was initially produced by him when he was living in Ringwood, Victoria. He later sold the company.

W&G published a series of teacher resource books for Mathomat authored by various teachers and academics who were interested in Mathomat as a teaching product.

See also 
 French curve
 Protractor
 Ruler
 Technical drawing tools

References

Dimensional instruments
Drawing aids
Educational materials
Geometry
Mathematical tools
Slugs (autopilot system). Slugs is an open-source autopilot system oriented toward inexpensive autonomous aircraft.
Low cost and wide availability enable hobbyist use in small remotely piloted aircraft. The project started in 2009 and is being further developed and used at Autonomous Systems Lab of University of California Santa Cruz. Several vendors produce Slugs autopilots and accessories.

Overview
An autopilot allows a remotely piloted aircraft to be flown out of sight. All hardware and software is open-source and freely available to anyone under the MIT licensing agreement. free software autopilots provide more flexible hardware and software. Users can modify the autopilot based on their own special requirements, such as forest fire evaluation. The free software approach from Slugs is similar to that from the paparazzi Project, PX4 autopilot, ArduPilot  and OpenPilot where low cost and availability enables its hobbyist use in small remotely piloted aircraft such as micro air vehicles and miniature UAVs. Such frameworks are common in Open-source robotics.

Software
The open-source software suite contains everything to let airborne systems fly.

See also
Crowdsourcing
Micro air vehicle

References

External links
Slugs Homepage

Avionics
Aircraft instruments
Unmanned aerial vehicles
Software using the MIT license
AGM-53 Condor. In 1962, the U.S. Navy issued a requirement for a long-range high-precision air-to-surface missile. The missile, named the AGM-53A Condor, was to use a television guidance system with a data link to the launching aircraft similar to the system of the then projected AGM-62 Walleye.

Development history
Because of numerous problems in the development phase, the first flight of an XAGM-53A missile did not occur before March 1970.

On 4 February 1971, in its first live warhead test, a Condor made a direct hit on the ex-US navy destroyer escort , while tests later that year demonstrated the ability to hit targets at a range of . The AGM-53 program was cancelled in March 1976. Its long range and potentially high precision made the Condor a very powerful weapon, but it was much more expensive than contemporary tactical air-to-ground weapons. The secure data link contributed a significant portion to total missile cost, and it certainly didn't help that this link was still somewhat unreliable.

Description

The Condor was to be a long-range missile to be used for high-precision stand-off attacks. The missile was launched by the strike aircraft from a distance of up to  to the general target area. When the AGM-53 approached the expected target position, the image of the TV camera in the missile's nose was transmitted back to the operator in the launching aircraft. The operator could switch between wide and narrow field-of-view images to find a suitable target.

As soon as a target for the missile had been selected, the operator could either fly the missile manually until impact, or lock the Condor on the target and rely on the missile's capability to home on the final aiming point. The Condor's linear shaped charge warhead detonated on impact.

A variant of the Condor was anticipated to carry the W73 nuclear warhead, a derivative of the B61 nuclear bomb. Details on the W73 are poorly documented, and it never entered production or service.

Operators
:  The AGM-53 was cancelled before entering service.

References

Friedman, Norman (1983). US Naval Weapons. Conway Maritime Press.
Gunston, Bill (1979). The Illustrated Encyclopedia of Rockets and Missiles. Salamander Books Ltd.
Pretty, R.T; Archer, D.H.R. (eds.) (1973). Jane's Weapon Systems 1972–73. Jane's Information Group.

AGM-053
Abandoned military rocket and missile projects of the United States
Transmitter Riegelsberg. The Riegelsberg Transmitter (or Schocksberg Transmitter) is a transmitter for FM and TV at Riegelsberg, near Saarbrücken, Germany. The transmitter uses as aerial a  guyed mast.

See also
 List of Masts

External links
 
 http://www.skyscraperpage.com/diagrams/?b46680
 https://theantennasite.com/archive/germany-riegelsberg-amsender-pictures.html

Buildings and structures in Saarbrücken (district)
Siskins. The Siskins, officially the Siskin Exhibition Flight, were a Royal Canadian Air Force (RCAF) aerobatic flying team that was established in 1929 at Camp Borden, Ontario. They were named after the bird family Siskin. It was the air force's first official aerobatic team. Flying three Armstrong Whitworth Siskin biplanes, the Siskins quickly built a reputation for performing daring maneuvers. The Siskins flew more than 100 air shows over three years before being disbanded in 1932 when the Great Depression forced the RCAF to reduce operations.

Siskins' Squadron Leader E.A. McNab would later earn recognition as the first RCAF pilot to win the Distinguished Flying Cross during the Second World War.

References

 Dempsey, Daniel V. A Tradition of Excellence: Canada's Airshow Team Heritage. Victoria, BC: High Flight Enterprises, 2002. .
Milberry, Larry, ed. Sixty Years—The RCAF and CF Air Command 1924–1984. Toronto: Canav Books, 1984. .

Royal Canadian Air Force
Brian Walker (toy inventor). Brian Walker is a toy inventor from Bend, Oregon who is known for attempting to build his own rocket and as the inventor of several toys, namely the air bazooka.

His rocket is known as Project R.U.S.H., which stands for Rapid Up Super High. It was intended to be fueled by hydrogen peroxide and equipped with parachutes for use when landing. The goal of the project is to launch Walker 50 miles into the sky.  He wanted to launch 20 miles in a rocket-propelled aircraft from the world's largest crossbow., but in a 2015 interview, he said that he is no longer looking to launch himself skyward.

Walker has been interviewed by several media personalities, including Art Bell on his radio show Coast to Coast AM; novelist Chuck Palahniuk, who included his interview with Walker in his book Stranger Than Fiction: True Stories.

He has been posting videos to his YouTube channel since 2009.

References

Sources
 http://interviews.slashdot.org/interviews/02/07/12/1410203.shtml?tid=160
 Palahniuk, Chuck. Stranger Than Fiction : True Stories. Doubleday, 2004. 
 When Rocket Guy Dreams (St. Petersburg Times, September 2000)
 Interview with Art Bell March 27, 2002

Living people
Year of birth missing (living people)
21st-century American inventors
People from Bend, Oregon
MEX (windowing system). mex (multiple exposure) is a windowing system created by Silicon Graphics, used on 68k-based IRIS systems and early IRIS 4D systems.  Mex was originally loaded over a network through the utilization of GL1 routines kept on a remote host machine, usually a VAX. When the IRIS 1400 workstation and GL2-W (IRIX) were introduced, mex was allowed to run locally.  Mex was used in IRIX from the GL2-W2.1.0 release to the 4D1-2.3 release.

With the introduction of 4D1-3.0 (IRIX 3.0), and the complete migration to MIPS processors, support for the GL / GL2 powered mex ended in the late 1980s, replaced by Sun Microsystems' NeWS and the 4Sight window manager.

References 

1985 software
Windowing systems
SGI graphics
SWI. SWI may refer to:

Places
 Switzerland (this is not the ISO 3166-1 code, which is CHE)
 Swindon railway station (National Rail code SWI), serving Swindon, Wiltshire, United Kingdom

Science and technology
 SWI-Prolog, a free implementation of the programming language Prolog
 Susceptibility weighted imaging, in magnetic resonance imaging (MRI) used in medical contexts
 Software interrupt, an interrupt routine in a computer operating system
 SWI, an assembler mnemonic to perform a software interrupt on the ARM microprocessor family
 Szilagyi Waterspout Index

Other uses
 Swissinfo, a service of the Swiss Broadcasting Corporation
 Switzerland, UNDP country code
 Structured Word Inquiry, a pedagogical technique involving the scientific investigation of the spelling of words
 Scottish Women's Institutes, a registered charity in Scotland
Wasp III (watercraft). Australian speedboat Wasp III is a racing hydroplane speedboat designed and built by Harry West, which held speed records in Australia in the 1950s and 60s. It is built from plywood and powered by a heavily modified Peugeot car engine. It is designed to skim the surface so that only the propeller and the tips of the hydroplanes are immersed when it is moving. The boat currently resides in the Queensland Museum in Brisbane, Australia.

See also
 http://www.mms.qld.edu.au/getting-about/wasp.htm

Racing motorboats
Monica (radar). Monica was a range-only tail warning radar for bombers, introduced by the RAF in  June 1942. Officially known as ARI 5664, it operated at frequencies of around 300 MHz (on the boundary between VHF and UHF). The system was also used by the US Army Air Forces, under the name AN/APS-13, and the nickname Archie.

History
Monica was developed at the Bomber Support Development Unit (BSDU) in Worcestershire. After the Luftwaffe became aware of Monica from a crashed bomber, German scientists developed a passive radar receiver, named Flensburg (FuG 227). From early 1944, FuG 227 was used by nightfighter crews to home in on Allied bombers using Monica. However, on the morning of 13 July 1944, a 7.Staffel/NJG 2-flown Junkers Ju 88 G-1 nightfighter equipped with Flensburg mistakenly landed at RAF Woodbridge. After examining the Flensburg equipment,  the RAF ordered Monica withdrawn from all Bomber Command aircraft.
An AN/APS-13 was used as a radar altimeter during the Atomic bombings of Hiroshima and Nagasaki by the 509th Composite Group, USAAF.

See also

List of radars
List of World War II electronic warfare equipment
List of military electronics of the United States

References

External links

Oral History of Defence Electronics
Folded Dipole UHF Yagi antenna patent used on Little Boy

Further reading
Price, Alfred : Battle Over the Reich (1973) 
Forczyk, Robert: Bf 110 vs Lancaster 1942-1945 (2013) 

Aircraft radars
World War II radars
World War II British electronics
Military radars of the United Kingdom
Military equipment introduced from 1940 to 1944
Tail warning radars
Military electronics of the United States
Flensburg radar detector. The FuG 227 Flensburg was a German passive radar receiver developed by Siemens & Halske and introduced into service in early 1944. It used wing and tail-mounted dipole antennae and was sensitive to the mid-VHF band frequencies of 170–220 MHz, subharmonics of the Monica radar's 300 MHz transmissions. It allowed Luftwaffe nightfighters to home in on the Monica tail warning radar fitted to RAF bombers.

An RAF bomber with Monica radar crashed in German-occupied territory in February 1943 allowing for the development of Flensburg. The British set was captured just seven days into its operational life in February 1943. On the morning of 13 July 1944, a Junkers Ju 88G-1 night fighter of 7.Staffel/NJG 2 equipped with Flensburg landed at RAF Woodbridge by mistake and was captured. When British military scientists examined the Flensburg equipment, they quickly realised its purpose and informed the RAF, who ordered Monica to be withdrawn from all RAF Bomber Command aircraft.

Subsequently, further variants of Flensburg (Flensburg II to Flensburg VI) were developed for detecting Allied radar jammers. Only Flensburg II and III were used operationally.

References

Further reading

External links
 Analysis report on the Ju 88 at Woodbridge (PDF format; 44 kB)

World War II German radars
Avionics
Radar warning receivers
Military equipment introduced from 1940 to 1944
Dines' compensation. Dines' compensation, or Dines compensation principle, is a rule of thumb devised by English meteorologist William Henry Dines which states that winds converging on a given column of air at one altitude tends to be balanced by winds diverging at another altitude, and vice versa.   As an example, the air under a thunderstorm rushes in at ground level, rises up through the cumulonimbus cloud, and then disperses at the top of the cloud so there is a balancing of converging and diverging air flows and no net increase in air molecules above a given location.

Dines compensation is a demonstration of conservation of mass under the weak constraint that the height of the atmosphere is approximately the same anywhere on Earth.

Mathematically it may be stated that the sign of the horizontal divergence changes at least once in any given column of air.

A corollary is that rising air at any given point in the atmosphere tends to be balanced by sinking or subsiding air elsewhere.  This is a salient feature of mesoscale atmospheric circulation (i.e. supercells) and in macroscale and mesoscale tropical circulations.  For instance, it is not uncommon to see high altitude anticyclonic cirrus outflow from a hurricane in visible satellite imagery which is compensating for the inbound winds at sea level.

Dines compensation is useful in weather forecasting to connect the formation and movement of ground-level high and low pressure zones with wind phenomenon in the upper troposphere such as Rossby waves and jet streams. In general Dines compensation ties together vertical and horizontal air movements in the atmosphere.

References

Atmospheric dynamics
Man in Space Soonest. Man In Space Soonest (MISS) was a United States Air Force (USAF) program to put a man into outer space before the Soviet Union. The program was cancelled on August 1, 1958, and was replaced by NASA's Project Mercury. Only two men from the program would actually reach outer space. The first, Joseph A. Walker, did so two or three times (depending on the definition of the space border) in X-15 rocket plane tests in 1963. The other, Neil Armstrong, became a NASA astronaut in 1962, flew on Gemini 8 in 1966, and in 1969 on Apollo 11 becoming the first person to walk on the Moon.

Astronaut candidates 

MISS would have used a Thor booster, then later an Atlas, to launch a single-man spacecraft into orbit. On June 25, 1958, the Air Force announced the following nine men selected to be astronauts for the program:

 Neil A. Armstrong (1930–2012), 27, NACA. The only member of the group to join the NASA Astronaut Corps. Flew on Gemini 8 and Apollo 11 missions; performed the first docking of two spacecraft, was the first—along with Buzz Aldrin—to land on the Moon, and was the first person to set foot on the Moon.
 William B. Bridgeman (1916–1968), 42, Douglas Aircraft Company
 A. Scott Crossfield (1921–2006), 36, North American Aviation (NAA)
 Iven C. Kincheloe (1928–1958), 29, USAF
 John B. McKay (1922–1975), 35, NACA
 Robert A. Rushworth (1924–1993), 33, USAF
 Joseph A. Walker (1921–1966), 37, NACA. The first member of the group to achieve outer space according to the FAI, and to enter space twice, on two X-15 test flights.
 Alvin S. White (1918–2006), 39, NAA 
 Robert M. White (1924–2010), 33, USAF. The first member of the group to achieve outer space according to the USAF.

See also
 List of astronauts by selection
 Project Mercury
 Vostok Program

References

External links

 Encyclopedia Astronautica entry.
 
 Man In Space Soonest? (NASA History)

Abandoned military projects of the United States
Human spaceflight
Neil Armstrong
Proposed spacecraft
1958 in spaceflight
1958 in the United States