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Timeline geological timescale. The following five timelines show the geologic time scale to scale. The first shows the entire time from the formation of the Earth to the present, but this gives little space for the most recent eon. The second timeline shows an expanded view of the most recent eon. In a similar way, the most recent era is ...
Free body diagram of a ball floating on water. The principles of buoyancy were known in classical antiquity. Before 300 BC – Civilization starts by settling around rivers, coast and lakes. 3000 BC – Irrigation techniques develop in Mesopotamia and Ancient Egypt.
A Gantt chart is a type of bar chart [ 4][ 5] that illustrates a project schedule. [ 6] This chart lists the tasks to be performed on the vertical axis, and time intervals on the horizontal axis. [ 4][ 7] The width of the horizontal bars in the graph shows the duration of each activity. [ 7][ 8] Gantt charts illustrate the start and finish ...
This timeline of the Big Bang shows a sequence of events as currently theorized by scientists. It is a logarithmic scale that shows second instead of second. For example, one microsecond is . To convert −30 read on the scale to second calculate second = one millisecond. On a logarithmic time scale a step lasts ten times longer than the ...
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 ...
Middle Ages – periodization of European history from the 5th century to the 15th century. The Middle Ages follows the fall of the Western Roman Empire in 476 and precedes the Early Modern Era. It is the middle period of a three-period division of Western history: Classic, Medieval and Modern .
This template constructs a vertically arranged timeline. The editor defines 2D rectangles (bars) and optional annotations (notes). The header is customizable. A scale appears on the left, and annotations appear on the right. An optional legend appears at the foot. Has built-in compatibility for geological divisions.
Timeline of the Salem witch trials (1688–1713) List of African-American firsts (1738–present) Timeline of the Lewis and Clark Expedition (1803–1807) Timeline of modern American conservatism (1933 CE – present) Timeline of the open-access movement (1942–present) 2024.
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