ASCII, abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. Because of technical limitations of computer systems at the time it was invented, ASCII has just 128 code points, of which only 95 are printable characters, which severely limited its scope. Many computer systems instead use Unicode, which has millions of code points, but the first 128 of these are the same as the ASCII set.
In the field of oneirology, a lucid dream is a type of dream in which the dreamer becomes aware that they are dreaming while they are dreaming. It is a trainable skill. During a lucid dream, the dreamer may gain some amount of control over the dream characters, narrative, or environment, although this control of dream content is not the salient feature of lucid dreaming. Lucid dreaming has been studied and reported for many years. Prominent figures from ancient to modern times have been fascinated by lucid dreams and have sought ways to better understand their causes and purpose.
Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by nuclear fission of uranium and plutonium in nuclear power plants. Nuclear decay processes are used in niche applications such as radioisotope thermoelectric generators in some space probes such as Voyager 2. Generating electricity from fusion power remains the focus of international research.
In computing, a plug-in is a software component that adds a specific feature to an existing computer program. When a program supports plug-ins, it enables customization.
Clothing is any item worn on the body. Typically, clothing is made of fabrics or textiles, but over time it has included garments made from animal skin and other thin sheets of materials and natural products found in the environment, put together. The wearing of clothing is mostly restricted to human beings and is a feature of all human societies. The amount and type of clothing worn depends on gender, body type, social factors, and geographic considerations. Garments cover the body, footwear covers the feet, gloves cover the hands, while hats and headgear cover the head, and underwear covers the private parts.
A USB flash drive is a data storage device that includes flash memory with an integrated USB interface. It is typically removable, rewritable and much smaller than an optical disc. Most weigh less than 30 g (1 oz). Since first appearing on the market in late 2000, as with virtually all other computer memory devices, storage capacities have risen while prices have dropped. As of March 2016, flash drives with anywhere from 8 to 256 gigabytes (GB) were frequently sold, while 512 GB and 1 terabyte (TB) units were less frequent. As of 2018, 2 TB flash drives were the largest available in terms of storage capacity. Some allow up to 100,000 write/erase cycles, depending on the exact type of memory chip used, and are thought to physically last between 10 and 100 years under normal circumstances.
A vocational school, trade school, or technical school is a type of educational institution, which, depending on the country, may refer to either secondary or post-secondary education designed to provide vocational education or technical skills required to complete the tasks of a particular and specific job. In the case of secondary education, these schools differ from academic high schools which usually prepare students who aim to pursue tertiary education, rather than enter directly into the workforce. With regard to post-secondary education, vocational schools are traditionally distinguished from four-year colleges by their focus on job-specific training to students who are typically bound for one of the skilled trades, rather than providing academic training for students pursuing careers in a professional discipline. While many schools have largely adhered to this convention, the purely vocational focus of other trade schools began to shift in the 1990s "toward a broader preparation that develops the academic" as well as technical skills of their students.
In entertainment, a tagline is a short text which serves to clarify a thought for, or is designed with a form of, dramatic effect. Many tagline slogans are reiterated phrases associated with an individual, social group, or product. As a variant of a branding slogan, taglines can be used in marketing materials and advertising.
A Hanukkah menorah, or hanukkiah, is a nine-branched candelabrum lit during the eight-day Jewish holiday of Hanukkah. Eight of the nine branches hold lights that symbolize the eight nights of the holiday; on each night, one more light is lit than the previous night, until on the final night all eight branches are ignited. The ninth branch holds a candle, called the shamash, which is used to light the other eight.
Asteroid mining is the hypothetical extraction of materials from asteroids and other minor planets, including near-Earth objects.
Free and open-source software (FOSS) is a term used to refer to groups of software consisting of both free software and open-source software where anyone is freely licensed to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software. This is in contrast to proprietary software, where the software is under restrictive copyright licensing and the source code is usually hidden from the users.
Open Library is an online project intended to create "one web page for every book ever published". Created by Aaron Swartz, Brewster Kahle, Alexis Rossi, Anand Chitipothu, and Rebecca Malamud, Open Library is a project of the Internet Archive, a nonprofit organization. It has been funded in part by grants from the California State Library and the Kahle/Austin Foundation. Open Library provides online digital copies in multiple formats, created from images of many public domain, out-of-print, and in-print books.
Halloween is an American slasher media franchise that consists of thirteen films, as well as novels, comic books, a video game and other merchandise. The films primarily focus on Michael Myers, who was committed to a sanitarium as a child for the murder of his sister, Judith Myers. Fifteen years later, he escapes to stalk and kill the people of the fictional town of Haddonfield, Illinois. Michael's killings occur on the holiday of Halloween, on which all of the films primarily take place. Throughout the series various protagonists try to stop Myers including, most notably, babysitter Laurie Strode and psychiatrist Dr. Samuel Loomis. The original Halloween, released in 1978, was written by John Carpenter and Debra Hill—the film's director and producer respectively. The film, itself inspired by Alfred Hitchcock's Psycho and Bob Clark's Black Christmas, is known to have inspired a long line of slasher films.
The 2018 FIFA World Cup was the 21st FIFA World Cup, the quadrennial world championship for national football teams organized by FIFA. It took place in Russia from 14 June to 15 July 2018, after the country was awarded the hosting rights in 2010. It was the eleventh time the championships had been held in Europe, and the first time they were held in Eastern Europe. At an estimated cost of over $14.2 billion, it was the most expensive World Cup ever held until it was surpassed by the 2022 World Cup in Qatar.
The kelvin, symbol K, is a unit of measurement for temperature. The Kelvin scale is an absolute scale, which is defined such that 0 K is absolute zero and a change of thermodynamic temperature T by 1 kelvin corresponds to a change of thermal energy kT by 1.380649×10−23 J. The Boltzmann constant k = 1.380649×10−23 J⋅K−1 was exactly defined in the 2019 redefinition of the SI base units such that the triple point of water is 273.16±0.0001 K. The kelvin is the base unit of temperature in the International System of Units (SI), used alongside its prefixed forms. It is named after the Belfast-born and University of Glasgow-based engineer and physicist William Thomson, 1st Baron Kelvin (1824–1907).
A music streaming service is a type of streaming media service that focuses primarily on music, and sometimes other forms of digital audio content such as podcasts. These services are usually subscription-based services allowing users to stream digital copyright restricted songs on-demand from a centralized library provided by the service. Some services may offer free tiers with limitations, such as advertising and limits on use. They typically incorporate a recommendation engine to help users discover other songs they may enjoy based on their listening history and other factors, as well as the ability to create and share public playlists with other users.
Google Contact Lens was a smart contact lens project announced by Google on 16 January 2014. The project aimed to assist people with diabetes by constantly measuring the glucose levels in their tears. The project was being carried out by Verily and as of 2014 was being tested using prototypes. On November 16, 2018, Verily announced it had discontinued the project.
A Uniform Resource Locator (URL), colloquially known as an address on the Web, is a reference to a resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identifier (URI), although many people use the two terms interchangeably. URLs occur most commonly to reference web pages (HTTP/HTTPS) but are also used for file transfer (FTP), email (mailto), database access (JDBC), and many other applications.
Disease X is a placeholder name that was adopted by the World Health Organization (WHO) in February 2018 on their shortlist of blueprint priority diseases to represent a hypothetical, unknown pathogen that could cause a future epidemic. The WHO adopted the placeholder name to ensure that their planning was sufficiently flexible to adapt to an unknown pathogen. Director of the US National Institute of Allergy and Infectious Diseases Anthony Fauci stated that the concept of Disease X would encourage WHO projects to focus their research efforts on entire classes of viruses, instead of just individual strains, thus improving WHO capability to respond to unforeseen strains. In 2020, experts, including some of the WHO's own expert advisors, speculated that COVID-19, caused by the SARS-CoV-2 virus strain, met the requirements to be the first Disease X.
Bank Zero, registered with the South African Reserve Bank in 2018, is an exclusively digital mutual bank in South Africa. It offers banking to both individuals and businesses. Bank Zero joins other new banks in South Africa, such as TymeBank and Discovery Bank. Despite an original planned soft launch at the end of 2019, the bank is as of June 2021, conducting a closed rollout with beta testing, with a proposed launch date in mid-2021.
