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1887 – Pierre Henri Hugoniot based on the work of Rankine, introduces the Rankine–Hugoniot conditions to model shock waves. 1887 – First models of supersonic waves by Ernst Mach. [38] He introduces the concept of Mach number. 1888 – First commercial Venturi tube by Clemens Herschel.
none (unique language) 1943–45. Plankalkül (year of conceptualization) Konrad Zuse. none (unique language) 1943–46. ENIAC coding system. John von Neumann, John Mauchly, J. Presper Eckert and Herman Goldstine after Alan Turing. The first programmers of ENIAC were Kay McNulty, Betty Jennings, Betty Snyder, Marlyn Meltzer, Fran Bilas, and ...
The geologic time scale is a way of representing deep time based on events that have occurred throughout Earth's history, a time span of about 4.54 ± 0.05 Ga (4.54 billion years). [5] It chronologically organises strata, and subsequently time, by observing fundamental changes in stratigraphy that correspond to major geological or ...
1976 – Concorde makes the world's first commercial passenger-carrying supersonic flight. 1977 – The first semi-automated car was developed in 1977, by Japan's Tsukuba Mechanical Engineering Laboratory, which required specially marked streets. 1980 – Modern guided bus passenger service introduced in Essen.
A timeline is a display of a list of events in chronological order. It is typically a graphic design showing a long bar labelled with dates paralleling it, and usually contemporaneous events. Timelines can use any suitable scale representing time, suiting the subject and data; many use a linear scale, in which a unit of distance is equal to a ...
These timelines of world history detail recorded events since the creation of writing roughly 5000 years ago to the present day. For events from c. 3200 BC – c. 500 see: Timeline of ancient history. For events from c. 500 – c. 1499, see: Timeline of post-classical history. For events from c. 1500, see: Timelines of modern history.
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