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  1. The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At 20 °C (68 °F), the speed of sound in air is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn ), or 1 km in 2.91 s or one mile in 4.69 s. It depends strongly on temperature as well as the medium through which a ...

  2. "The Sound of Silence" (originally "The Sounds of Silence") is a song by the American folk rock duo Simon & Garfunkel, written by Paul Simon. The duo's studio audition of the song led to a record deal with Columbia Records, and the original acoustic version was recorded in March 1964 at Columbia's 7th Avenue Recording Studios in New York City for their debut album, Wednesday Morning, 3 A.M ...

  3. Perplexity AI is an AI-chatbot-powered research and conversational search engine that answers queries using natural language predictive text.[2][3] Launched in 2022, Perplexity generates answers using the sources from the web and cites links within the text response.[4] Perplexity works on a freemium model; the free product uses its Perplexity ...

  4. Google Translate is a web-based free-to-user translation service developed by Google in April 2006. [11] It translates multiple forms of texts and media such as words, phrases and webpages. Originally, Google Translate was released as a statistical machine translation service. [11] The input text had to be translated into English first before ...

  5. en.wikipedia.org › wiki › 11 - Wikipedia

    1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of unit length is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest ...

  6. Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for voice calls for the delivery of voice communication sessions over Internet Protocol (IP) networks, such as the Internet. The broader terms Internet telephony, broadband telephony, and broadband phone service specifically refer to the provisioning of voice and other communications services ...

  7. en.wikipedia.org › wiki › USBUSB - Wikipedia

    An M.2 (2242) solid-state-drive ( SSD) connected into USB 3.0 adapter and connected to computer. The USB mass storage device class (MSC or UMS) standardizes connections to storage devices. At first intended for magnetic and optical drives, it has been extended to support flash drives and SD card readers.