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Web portal. A web portal is a specially designed website that brings information from diverse sources, like emails, online forums and search engines, together in a uniform way. Usually, each information source gets its dedicated area on the page for displaying information (a portlet ); often, the user can configure which ones to display.
utm_source Identifies which site sent the traffic, and is a required parameter. Source tells you the place that the ad was distributed : utm_source=google: utm_medium Identifies the channel that referred a user to your site: , such as Pay-per-click or email. utm_medium=ppc: utm_campaign Identifies a specific product promotion or strategic campaign.
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The World Wide Web (WWW or simply the Web) is an information system that enables content sharing over the Internet through user-friendly ways meant to appeal to users beyond IT specialists and hobbyists. It allows documents and other web resources to be accessed over the Internet according to specific rules of the Hypertext Transfer Protocol ...
Space exploration is the use of astronomy and space technology to explore outer space. [1] While the exploration of space is currently carried out mainly by astronomers with telescopes, its physical exploration is conducted both by uncrewed robotic space probes and human spaceflight. Space exploration, like its classical form astronomy, is one ...
Portal:Space/Intro/3 Space (or outer space) describes the vast empty regions between and around planets and stars. The study of these, and other, astronomical objects is called astronomy, one of the oldest sciences. It is often said that space exploration began with the launch of Sputnik 1, the first man-made object to orbit the Earth.
July 7: Astronomer Anthony Boccaletti discusses observation of birth of potential exoplanet with Wikinews. May 31: SpaceX successfully launches its first crewed spaceflight. May 22: Astronomer tells Wikinews about discovery of closest black hole known so far. October 12: Cosmonaut Alexei Leonov dies at age 85.
Extra-vehicular activity (EVA) is work done by an astronaut away from the Earth and outside of his or her spacecraft.EVAs may be made outside a craft orbiting Earth (a spacewalk) or on the surface of the Moon (a moonwalk).