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A giant planet is any planet much larger than Earth. They are usually primarily composed of low-boiling-point materials, rather than rock or other solid matter, but massive solid planets can also exist. There are four known giant planets in the Solar System: Jupiter, Saturn, Uranus and Neptune. Many extrasolar giant planets have been identified orbiting other stars.
In nuclear physics and nuclear chemistry, nuclear fission is a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into two or more smaller, lighter nuclei. The fission process often produces gamma photons, and releases a very large amount of energy even by the energetic standards of radioactive decay.
Thermal insulation is the reduction of heat transfer between objects in thermal contact or in range of radiative influence. Thermal insulation can be achieved with specially engineered methods or processes, as well as with suitable object shapes and materials.
Critical Mass is a form of direct action in which people meet at a set location and time and travel as a group through their neighbourhoods on bikes. The idea is for people to group together to make it safe for each other to ride bicycles through their streets, based on the old mantra: there's safety in numbers.
A critical mass is the smallest amount of fissile material needed for a sustained nuclear chain reaction. The critical mass of a fissionable material depends upon its nuclear properties, density, shape, enrichment, purity, temperature, and surroundings. The concept is important in nuclear weapon design.
The Catholic Church, during its long history, has on occasion been subject to criticism regarding various beliefs and practices. Within the Church, this includes differences of opinion regarding the use of Latin at Mass, and the subject of clerical celibacy. In the past, different interpretations of scripture and critiques of clerical laxity and opulence contributed to separations such as the schism with the Eastern Orthodox Church and the Protestant Reformation. The Catholic Church has also been criticized for its active efforts to influence political decisions, such as the Church's promotion of the Crusades and its involvement with various 20th century nationalist regimes. More recent criticism focuses on alleged scandals within the Church, particularly alleged financial corruption and the Catholic Church's sexual abuse scandals.
Uranium-235 (235U) is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope uranium-238, it is fissile, i.e., it can sustain a fission chain reaction. It is the only fissile isotope that exists in nature as a primordial nuclide.
Great Mass in C minor, K. 427/417a, is the common name of the musical setting of the mass by Wolfgang Amadeus Mozart and considered one of his greatest works. He composed it in Vienna in 1782 and 1783 after his marriage when he moved to Vienna from Salzburg. This large-scale work, a missa solemnis, is scored for two soprano soloists, a tenor and a bass, double chorus and large orchestra. It remained unfinished, missing large portions of the Credo and the complete Agnus Dei.
High culture encompasses the cultural objects of aesthetic value, which a society collectively esteem as exemplary art, and the intellectual works of philosophy, history, and literature that a society consider representative of their culture.
Damping is an influence within or upon an oscillatory system that has the effect of reducing or preventing its oscillation. In physical systems, damping is produced by processes that dissipate the energy stored in the oscillation. Examples include viscous drag in mechanical systems, resistance in electronic oscillators, and absorption and scattering of light in optical oscillators. Damping not based on energy loss can be important in other oscillating systems such as those that occur in biological systems and bikes.
Critical mass is the amount of fissile material needed to sustain nuclear fission.
The National Security Branch (NSB) is a service within the Federal Bureau of Investigation. The NSB is responsible for protecting the United States from weapons of mass destruction, acts of terrorism, and foreign intelligence operations and espionage. The NSB accomplishes its mission by investigating national security threats, providing information and analysis to other law enforcement agencies, and developing capabilities to keep the US nation secure.
Philip Ball is a British science writer. For over twenty years he has been an editor of the journal Nature for which he continues to write regularly. He now writes a regular column in Chemistry World. He has contributed to publications ranging from New Scientist to the New York Times, The Guardian, the Financial Times and New Statesman. He is the regular contributor to Prospect magazine, and also a columnist for Chemistry World, Nature Materials and BBC Future. He has broadcast on many occasions on radio and TV, and in June 2004 he presented a three-part serial on nanotechnology, Small Worlds, on BBC Radio 4.
The Patriotic Health Campaign, first started in the 1950s, are campaigns aimed to improve sanitation, hygiene, as well as attack diseases in the People's Republic of China.
In social dynamics, critical mass is a sufficient number of adopters of a new idea, technology or innovation in a social system so that the rate of adoption becomes self-sustaining and creates further growth. The point at which critical mass is achieved is sometimes referred to as a threshold within the threshold model of statistical modeling.
Mugstar are an English rock band, influenced by kraut/psych/space/noise rock such as Oneida, Sonic Youth, Neu! and Hawkwind. Since 2003 they have issued several full-length albums, a split release with Mudhoney and two live albums performing on stage together with Damo Suzuki. Mugstar recorded one of the last-ever Peel Sessions with the late John Peel on 5 May 2004. Record labels: Rock Action, Important Records (U.S.A.), Cardinal Fuzz, Weird Beard, Agitated, Evil Hoodoo, Rocket Recordings, Trensmat, God Unknown, Chunklet Industries (U.S.A.), Hands In The Dark / All Time Low, Lancashire & Somerset, critical MASS...
Patagotitan is a genus of titanosaurian sauropod dinosaur from the Cerro Barcino Formation in Chubut Province, Patagonia, Argentina. The genus contains a single species known from multiple individuals: Patagotitan mayorum, first announced in 2014 and then validly named in 2017 by José Carballido, Diego Pol, and colleagues. Contemporary studies estimated the length of the type specimen, a young adult, at 37 m (121 ft) with an approximate weight of 69 tonnes, although subsequent mass estimates indicate a mass of 55–57 tonnes.
Julian Day is a visual artist, composer and broadcaster. His artwork has featured at the 2017 California-Pacific Triennial at Orange County Museum of Art, the 8th Asia Pacific Triennial at the Queensland Gallery of Modern Art, Australian Centre for Contemporary Art (NEW16) and Museum of Contemporary Art Australia. He won the ARTAND Australia Credit Suisse Contemporary Art Award and the 2015 Fauvette Loureiro Memorial Artists Travel Scholarship from Sydney College of the Arts. His compositions have featured at Huddersfield Contemporary Music Festival, Bang on a Can Marathon, MATA Festival and Royal Academy of Music's Piano Festival. He performs as An Infinity Room (AIR), a project for multiple synthesizers, and co-directs the project Super Critical Mass which brings together 'temporary communities' to sound out locations using identical sound sources. As a broadcaster, he presented the long-running experimental music program New Music Up Late as well as Classic Breakfast and Afternoons on ABC Classic FM. He has also made programs for BBC Radio 3 and ABC Radio National.
Operation Rescript is the code name for the British military operation to help tackle the ongoing COVID-19 pandemic in the United Kingdom. It has been described as the UK's "biggest ever homeland military operation in peacetime" by the Ministry of Defence (MOD), involving up to 23,000 personnel within a specialist task force, named the COVID Support Force (CSF). The support is given at the request of the UK government, its devolved administrations and civil authorities through the Military aid to the civil authorities (MACA) mechanism.
The NHS Nightingale Hospital North East is one of the temporary NHS Nightingale Hospitals set up by NHS England to help to deal with the COVID-19 pandemic. It was constructed inside the Centre of Excellence for Sustainable Advanced Manufacturing, Sunderland.
References
- Red Herrings (1985), a BBC documentary broadcast on BBC2.
