Technology and Engineering Atlas
Claims this atlas currently marks as unsettled or as tested and found false. A debated fact is one scholars hold competing positions on; a debunked one has been checked against the record and found not to hold. Both are kept in view rather than quietly smoothed over, with the reasoning that put each one where it stands.
103 statements marked Debated.
Just-In-Time Manufacturing, Origin Year1936
Just-In-Time Manufacturing, Methods
Standing
Concerns Origin Year
Currently States 1936
The current Wikipedia article treats just-in-time manufacturing as a principle within the Toyota Production System rather than a separately dated invention (the standalone just-in-time-manufacturing article now redirects to lean manufacturing); Toyota began building the Kaizen improvement teams that the Toyota Production System grew out of in 1936, but the pull-scheduling idea usually credited as JIT crystallized only over the following decades and the term itself was largely displaced by lean manufacturing during the 1990s.
Source Lean manufacturing (Wikipedia), Wikipedia contributors
Kite, Year450 BCE
Kite, Inventions
Standing
Concerns Year
Currently States 450 BCE
Attribution to Mozi and Lu Ban rests on later legendary Chinese accounts rather than a contemporary record; the approximate 5th-century BC dating is treated as circa.
Source Kite (Wikipedia)
Lightning Rod, Year1749
Lightning Rod, Inventions
Standing
Concerns Year
Currently States 1749
A Czech priest and scientist built an actual grounded lightning rod in 1754, five years after Franklin first conceived the pointed design in 1749; sources describe an ongoing debate over priority for the invention.
Source Lightning Rod (Wikipedia)
Marine Engineering, Origin Year1807
Marine Engineering, Fields
Standing
Concerns Origin Year
Currently States 1807
1807 is the traditionally cited start of the modern profession, Robert Fulton's steam-powered vessel demonstration; the same source also dates the broader discipline to the early Industrial Revolution (early 1700s), and credits Archimedes as its first practitioner in antiquity, so no single origin year is agreed.
Source Marine Engineering (Wikipedia), Wikipedia contributors
Mass Production, Origin Year1913
Mass Production, Methods
Standing
Concerns Origin Year
Currently States 1913
Interchangeable-parts manufacturing predates this by a century, but 1913 marks the Ford Motor Company introduction of the moving assembly line at Highland Park, the breakthrough most closely associated with mass production in its modern sense; the term itself was popularized by a 1926 Encyclopaedia Britannica article credited to Ford.
Source A History of Technology, Charles Singer, E. J. Holmyard, A. R. Hall and Trevor I. Williams, editors
Materials Engineering, Origin Year1958
Materials Engineering, Fields
Standing
Concerns Origin Year
Currently States 1958
Northwestern University created one of the first departments explicitly named materials science and engineering in the late 1950s, as metallurgy departments broadened their scope during a period of expanded research funding.
Source Encyclopaedia Britannica, Encyclopaedia Britannica editors
Mechanical Engineering, Origin Year1880
Mechanical Engineering, Fields
Standing
Concerns Origin Year
Currently States 1880
Practices recognizable as mechanical engineering predate this by millennia; 1880 marks the founding of the American Society of Mechanical Engineers, the first dedicated professional body for the discipline in the United States.
Source Encyclopaedia Britannica, Encyclopaedia Britannica editors
Mechatronics Engineering, Origin Year1971
Mechatronics Engineering, Fields
Standing
Concerns Origin Year
Currently States 1971
An earlier, apparently unrelated use of the word by the US company Servomechanisms, Inc. is recorded no later than 1951; the article credits Yaskawa Electric engineer Tetsuro Mori with creating the term, trademarked in Japan in 1971, treated here as the field's origin year.
Source Mechatronics (Wikipedia), Wikipedia contributors
Microscope, Year1620
Microscope, Inventions
Standing
Concerns Year
Currently States 1620
Inventor of the compound microscope is genuinely disputed among historians: rival claims name Zacharias Janssen (1590, per his son's later account), Hans Lippershey (who applied for the first telescope patent in 1608), and Cornelis Drebbel (noted with a working example in London in 1619); no single claim is settled.
Source Microscope (Wikipedia)
Mining Engineering, Origin Year1765
Mining Engineering, Fields
Standing
Concerns Origin Year
Currently States 1765
Georgius Agricola sixteenth century treatise De Re Metallica laid out systematic mining practice long before any dedicated school existed; the first dedicated mining engineering school, the Bergakademie Freiberg in Saxony, was founded in 1765.
Source Encyclopaedia Britannica, Encyclopaedia Britannica editors
Movable Type Printing, Year1041
Movable Type Printing, Inventions
Standing
Concerns Year
Currently States 1041
Sources place the invention within a 1039-1048 window rather than a single attested year; 1041 is the commonly cited midpoint.
Source Bi Sheng (Wikipedia), Wikipedia contributors
Nanotechnology, Origin Year1974
Nanotechnology, Fields
Standing
Concerns Origin Year
Currently States 1974
Dated here to Norio Taniguchi's 1974 paper, the first documented use of the word nanotechnology itself. Richard Feynman's 1959 lecture supplied the field's conceptual framing fifteen years earlier without using the term, and the field's modern popular identity and research agenda trace at least as strongly to K. Eric Drexler's independent 1981 coinage and 1986 book Engines of Creation as to Taniguchi's manufacturing-oriented usage; historians of science do not treat any single one of these three moments as settling when the field itself began.
Source Engines of Creation: The Coming Era of Nanotechnology (Drexler, 1986)
Nuclear Engineering, Origin Year1950
Nuclear Engineering, Fields
Standing
Concerns Origin Year
Currently States 1950
1950 marks the establishment of the first dedicated academic nuclear engineering programs, shortly after the Manhattan Project's reactor work was declassified for civilian use; the underlying reactor physics dates to Enrico Fermi's Chicago Pile-1 in 1942.
Petroleum Engineering, Origin Year1859
Petroleum Engineering, Fields
Standing
Concerns Origin Year
Currently States 1859
Edwin Drake drilled the first commercial oil well at Titusville, Pennsylvania in 1859, founding the modern petroleum industry; the first dedicated petroleum engineering degree programs did not appear until around 1910 to 1915.
Source Encyclopaedia Britannica, Encyclopaedia Britannica editors
Photolithography, Origin Year1957
Photolithography, Methods
Standing
Concerns Origin Year
Currently States 1957
Bell Telephone Laboratories applied photolithographic patterning to semiconductor manufacture in the mid-to-late 1950s; the exact priority between early adopters at Bell Labs and, later, Fairchild Semiconductor is not settled at the level of a single event, though the period is well attested.
Source A History of Technology, Charles Singer, E. J. Holmyard, A. R. Hall and Trevor I. Williams, editors
Pile Driver, Year1801
Pile Driver, Inventions
Standing
Concerns Year
Currently States 1801
Multiple inventors are credited for the steam-powered pile driver: John Rennie in 1801, James Nasmyth in 1845, and Otis Tufts in the United States, as the entity's own description already records.
Source Pile Driver (Wikipedia), Wikipedia contributors
Pile Driving, Origin Year-3000
Pile Driving, Methods
Standing
Concerns Origin Year
Currently States -3000
Named inventors are all far later (a 1475 drawing by Francesco di Giorgio Martini; steam pile drivers credited to John Rennie in 1801 and James Nasmyth in 1845), but archaeological evidence places a comparable device at Scottish crannog sites roughly 5000 years ago; no single point of origin is established.
Source Pile Driver (Wikipedia), Wikipedia contributors
Plastics, Origin Year1862
Plastics, Materials
Standing
Concerns Origin Year
Currently States 1862
Alexander Parkes introduced Parkesine, the first semi-synthetic plastic, in 1862; Leo Baekeland introduced Bakelite, the first fully synthetic plastic, in 1907.
Source A History of Technology, Charles Singer, E. J. Holmyard, A. R. Hall and Trevor I. Williams, editors
Radar, Year1935
Radar, Inventions
Standing
Concerns Year
Currently States 1935
German engineer Christian Hulsmeyer patented a radio-echo ship-detection device as early as 1904, decades before radar became a working military technology, and Britain's 1935 Daventry Experiment was only one of several near-simultaneous, independently developed pulsed-radar programs in the 1930s, alongside parallel work in Germany, France, the United States and the Soviet Union; crediting any single nation or individual as radar's sole inventor understates how many independent teams reached a working system within a few years of each other.
Source Radar (Wikipedia), Wikipedia contributors
Radio, Year1896
Radio, Inventions
Standing
Concerns Year
Currently States 1896
Source Encyclopaedia Britannica, Encyclopaedia Britannica editors