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Edgar Cayce was a psychic who coined the term "Earth Changes" to refer to cataclysmic events that would alter human life on the planet. He predicted a polar shift, a rise of Atlantis, and other natural and social upheavals.
N2YO.com is a web-based tool that provides real time tracking and pass predictions for Earth orbiting satellites, including the International Space Station. It features an alerting system, orbital paths and footprints, and powers other websites' satellite tracking pages.
Web Mercator is a variant of the Mercator map projection used for Web mapping applications. It uses spherical formulas with WGS 84 ellipsoidal coordinates, resulting in a slightly non-conformal projection that distorts angles and areas.
The International Date Line (IDL) is the line between the South and North Poles that is the boundary between one calendar day and the next. It passes through the Pacific Ocean, roughly following the 180.0° line of longitude and deviating to pass around some territories and island groups.
Google Earth is a web and computer program that renders a 3D globe based on satellite imagery, aerial photography, and GIS data. Users can explore the Earth, add their own data, view photos, Street View, and more, but also face privacy and security issues.
Google Maps offers satellite imagery, street maps, 360° views, traffic conditions, and route planning for various modes of transportation. It was launched in 2005 by Google, after acquiring several companies that developed the technology and data behind it.
The Dymaxion map is a polyhedral projection of the Earth's surface onto an icosahedron, invented by Buckminster Fuller. It has less distortion of area and shape than other world maps, and can be unfolded in different ways to show land and ocean patterns.
The age of Earth is estimated to be 4.54 ± 0.05 billion years based on radiometric dating of meteorites, terrestrial rocks and lunar samples. Learn about the history of estimating Earth's age, the geologic concepts and the challenges of measuring it.