Post-glacial rebound 1970-01-01
Post-glacial rebound, also known as isostatic rebound or glacial isostatic adjustment, refers to the geological process that occurs when the Earth's crust, which was previously depressed by the weight of ice sheets during the last Ice Age, begins to rise once the ice has melted. As glaciers and ice sheets retreat, the immense pressure they exert on the Earth's crust is removed, allowing the crust to gradually lift and adjust to its new load conditions.
Cassini Grid 1970-01-01
The Cassini Grid is a term that may refer to a geographical framework established by the Cassini family, particularly Giovanni Domenico Cassini, an Italian-French astronomer and engineer in the 17th century. The Cassini Grid often relates to a particular form of cartography that uses a system of coordinates, which is essential for accurately mapping and navigating terrains.
Denso mapcode 1970-01-01
A Denso mapcode is a location-based identifier used primarily in Japan to facilitate navigation and mapping. It is a numeric code that corresponds to a specific geographic area and can be used to pinpoint locations on maps, making it easier for users to find destinations without needing traditional addresses. The Denso mapcode system is particularly popular for use in vehicles equipped with GPS navigation systems, as it allows drivers to input these codes for quick access to directions.
Global Navigation Grid Code 1970-01-01
ISO 6709 1970-01-01
ISO 6709 is an international standard that specifies a representation format for geographic point locations. It defines how to express latitude and longitude coordinates in a way that is machine-readable and can be used in various applications, such as geographic information systems (GIS), mapping services, and databases. The standard provides a way to encode geographic coordinates with accompanying metadata, such as the coordinate reference system, altitude, and the precision of the coordinates.
Arc measurement of Delambre and Méchain 1970-01-01
The arc measurement of Delambre and Méchain refers to the measurement of a meridian arc in France conducted in the late 18th century by the French scientists Jean-Baptiste Delambre and Pierre Méchain. This undertaking was an essential part of the effort to establish a definitive metric system and to provide a basis for the definition of the meter. Delambre and Méchain measured the arc of the meridian between Dunkirk in the north of France and Barcelona in the south.
Meredith graph 1970-01-01
The Meredith graph is a specific type of graph in the field of graph theory. It is defined as a bipartite graph and is notable because it is a regular graph with 12 vertices, where each vertex has a degree of 3. The graph consists of two sets of vertices, each containing 6 vertices, and it can be described by specific connections between these two sets.
Computer-related introductions in 1942 1970-01-01
Computer-related introductions in 1944 1970-01-01
Computer-related introductions in 1946 1970-01-01
Computer-related introductions in 1948 1970-01-01
Transect 1970-01-01
A transect is a method used in ecology and environmental science to study the distribution of organisms and environmental features across a specific area. It involves laying out a line or a path across a habitat and systematically collecting data along that line. This method allows researchers to quantify changes in biodiversity, species composition, and environmental gradients over a certain distance. Transects can be classified into different types, including: 1. **Line Transects**: Where observations or measurements are taken at regular intervals along a straight line.
Geomagnetic Field Monitoring Program of SUPARCO 1970-01-01
The Geomagnetic Field Monitoring Program of SUPARCO (Space & Upper Atmosphere Research Commission) is an initiative in Pakistan aimed at studying and monitoring the Earth's geomagnetic field. This program involves the collection and analysis of data related to geomagnetic variations, which are influenced by factors such as solar activity and the Earth's own magnetic dynamics.
Geomatics organizations 1970-01-01
Geomatics organizations focus on the science, engineering, and technology involved in the collection, analysis, and management of spatial and geographic data. Geomatics is an interdisciplinary field that encompasses various aspects of geography, surveying, cartography, remote sensing, and geographic information systems (GIS). These organizations can vary widely in their functions and objectives, including: 1. **Professional Associations**: Many geomatics organizations are professional bodies that bring together professionals working in fields like surveying, mapping, and GIS.
Stereoplotter 1970-01-01
A stereoplotter is a specialized device used in photogrammetry and geographic information systems (GIS) for visualizing and interpreting three-dimensional structures from two-dimensional aerial photographs or images. It allows users to analyze stereo pairs of images to extract topographic and spatial information. Here's how a stereoplotter typically works: 1. **Stereoscopic Vision**: The device creates a 3D effect by allowing the user to view two overlapping photographs (stereo pairs) simultaneously.
Partial Nuclear Test Ban Treaty 1970-01-01
The Partial Nuclear Test Ban Treaty (PTBT), also known simply as the Partial Test Ban Treaty (PTBT), is a landmark arms control agreement that was opened for signature in 1963 and came into force in 1964. The treaty aims to prohibit all nuclear tests in the atmosphere, underwater, and in space, but it does not ban underground nuclear tests.
Positron–Electron Tandem Ring Accelerator 1970-01-01
The Positron–Electron Tandem Ring Accelerator (PETRA) is a particle accelerator that was originally designed as a storage ring for electron and positron collisions. Developed at the DESY (Deutsches Elektronen-Synchrotron) laboratory in Hamburg, Germany, PETRA was built to explore the properties of particle collisions at high energies, which are essential for studying fundamental aspects of particle physics.
Computer-related introductions in 1910 1970-01-01
Computer-related introductions in 1918 1970-01-01
Computer-related introductions in 1924 1970-01-01