Amazon EchoAmazon Echo, often shortened to Echo, is an American brand of smart speakers developed by Amazon. Echo devices connect to the voice-controlled intelligent personal assistant service Alexa, which will respond when a user says "Alexa". Users may change this wake word to "Amazon", "Echo", "Computer", as well as some other options. The features of the device include voice interaction, music playback, making to-do lists, setting alarms, streaming podcasts, and playing audiobooks, in addition to providing weather, traffic and other real-time information.
Free-culture movementThe free-culture movement is a social movement that promotes the freedom to distribute and modify the creative works of others in the form of free content or open content without compensation to, or the consent of, the work's original creators, by using the Internet and other forms of media. The movement objects to what it considers over-restrictive copyright laws. Many members of the movement argue that such laws hinder creativity. They call this system "permission culture".
Closed ecological systemClosed ecological systems (CES) are ecosystems that do not rely on matter exchange with any part outside the system. The term is most often used to describe small, man-made ecosystems. Such systems are scientifically interesting and can potentially serve as a life-support system during space flights, in space stations or space habitats. In a closed ecological system, any waste products produced by one species must be used by at least one other species.
Amazon (company)Amazon.com, Inc. (ˈæməzɒn , Ukalsoˈæməzən ) is an American multinational technology company focusing on e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence. It has been often referred to as "one of the most influential economic and cultural forces in the world," and is often regarded as one of the world's most valuable brands. It is considered to be one of the Big Five American technology companies, alongside Alphabet (parent company of Google), Apple, Meta (formerly Facebook, Inc.
Public broadcastingPublic broadcasting, sometimes public service broadcasting, is not subject to political interference or commercial influence. Public broadcasters receive funding from diverse sources including license fees, individual contributions, public financing and commercial financing. Common mediums include AM and FM radio, shortwave radio, television and the Internet. Public broadcasting may be nationally or locally operated, depending on the country and the station. In some countries a single organization runs public broadcasting.
List of commodities exchangesA commodities exchange is an exchange, or market, where various commodities are traded. Most commodity markets around the world trade in agricultural products and other raw materials (like wheat, barley, sugar, maize, cotton, cocoa, coffee, milk products, pork bellies, oil, and metals). Trading includes and various types of derivatives contracts based on these commodities, such as forwards, futures and options, as well as spot trades (for immediate delivery).
Public-access televisionPublic-access television (sometimes called community-access television) is traditionally a form of non-commercial mass media where the general public can create content television programming which is narrowcast through cable television specialty channels. Public-access television was created in the United States between 1969 and 1971 by the Federal Communications Commission (FCC), under Chairman Dean Burch, based on pioneering work and advocacy of George Stoney, Red Burns (Alternate Media Center), and Sidney Dean (City Club of NY).
