In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time. In Albert Einstein's 1905 paper, On the Electrodynamics of Moving Bodies, the theory is presented as being based on just two postulates:
- The laws of physics are invariant (identical) in all inertial frames of reference. This is known as the principle of relativity.
- The speed of light in vacuum is the same for all observers, regardless of the motion of light source or observer. This is known as the principle of light constancy, or the principle of light speed invariance.
The theory of relativity usually encompasses two interrelated physics theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, respectively. Special relativity applies to all physical phenomena in the absence of gravity. General relativity explains the law of gravitation and its relation to the forces of nature. It applies to the cosmological and astrophysical realm, including astronomy.
The United States Armed Forces are the military forces of the United States. The armed forces consist of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. All six armed services are among the eight uniformed services of the United States, along with the U.S. Public Health Service Commissioned Corps and the NOAA Commissioned Officer Corps.
The United States Navy Sea, Air, and Land (SEAL) Teams, commonly known as Navy SEALs, are the U.S. Navy's primary special operations force and a component of the Naval Special Warfare Command. Among the SEALs' main functions are conducting small-unit special operation missions in maritime, jungle, urban, arctic, mountainous, and desert environments. SEALs are typically ordered to capture or kill high-level targets, or to gather intelligence behind enemy lines. SEAL team personnel are hand-selected, highly trained, and possess a high degree of proficiency in unconventional warfare (UW), direct action (DA), and special reconnaissance (SR), among other tasks like sabotage, demolition, intelligence gathering, and hydro-graphic reconnaissance, training, and advising friendly militaries or other forces. All active SEALs are members of the U.S. Navy.
The Special Air Service (SAS) is a special forces unit of the British Army. It was founded as a regiment in 1941 by David Stirling, and in 1950 it was reconstituted as a corps. The unit specialises in a number of roles including counter-terrorism, hostage rescue, direct action and special reconnaissance. Much of the information about the SAS is highly classified, and the unit is not commented on by either the British government or the Ministry of Defence due to the secrecy and sensitivity of its operations.
Law & Order: Special Victims Unit is an American police procedural crime drama television series created by Dick Wolf for NBC. The first spin-off of Law & Order, it stars Mariska Hargitay as Detective Olivia Benson, now the commanding officer of the Special Victims Unit after originally having been Stabler's partner in a fictionalized version of the New York City Police Department, and Christopher Meloni as Detective Elliot Stabler. Law & Order: Special Victims Unit follows the detectives of the Special Victims Unit as they investigate and prosecute sexually based crimes. Some of the episodes are loosely based on real crimes that have received media attention.
The United States Army Special Forces (SF), colloquially known as the "Green Berets" due to their distinctive service headgear, is the special operations branch of the United States Army. Although technically an Army branch, the Special Forces operates similarly to a functional area (FA), in that individuals may not join its ranks until having served in another Army branch.
The M4 carbine is a 5.56×45mm NATO assault rifle developed in the United States during the 1980s. It is a shortened version of the M16A2 assault rifle.
The 1st Special Forces Operational Detachment–Delta, referred to as Delta Force, Combat Applications Group (CAG), or within Joint Special Operations Command (JSOC), Task Force Green, is a special operations force of the United States Army, under operational control of JSOC. The unit's missions primarily involve counterterrorism, hostage rescue, direct action, and special reconnaissance, often against high-value targets.
Special education is the practice of educating students in a way that accommodates their individual differences, disabilities, and special needs. This involves the individually planned and systematically monitored arrangement of teaching procedures, adapted equipment and materials, and accessible settings. These interventions are designed to help individuals with special needs achieve a higher level of personal self-sufficiency and success in school and in their community, which may not be available if the student were only given access to a typical classroom education.
A wedding anniversary is the anniversary of the date that a wedding took place. Couples often mark the occasion by celebrating their relationship, either privately or with a larger party. Special celebrations and gifts are often given for particular anniversary milestones. In some cultures, traditional names exist for milestone anniversaries; for instance, fifty years of marriage may be known variously as a "golden wedding anniversary", "golden anniversary" or "golden wedding".
The Primetime Emmy Awards, or Primetime Emmys, are part of the extensive range of Emmy Awards for artistic and technical merit for the American television industry. Bestowed by the Academy of Television Arts & Sciences (ATAS), the Primetime Emmys are presented in recognition of excellence in American primetime television programming. The award categories are divided into three classes: the regular Primetime Emmy Awards, the Primetime Creative Arts Emmy Awards to honor technical and other similar behind-the-scenes achievements, and the Primetime Engineering Emmy Awards for recognizing significant contributions to the engineering and technological aspects of television. First given out in 1949, the award was originally referred to as simply the "Emmy Award" until the International Emmy Award and the Daytime Emmy Award were created in the early 1970s to expand the Emmy to other sectors of the television industry.
Special forces or special operations forces (SOF) are military units trained to conduct special operations. NATO has defined special operations as "military activities conducted by specially designated, organized, selected, trained and equipped forces using unconventional techniques and modes of employment".
NCIS is an American military police procedural television series and the first installment within the NCIS media franchise. The series revolves around a fictional team of special agents from the Naval Criminal Investigative Service (NCIS), combining elements of the military drama and police procedural genres with comedy. The concept and characters were initially introduced with two episodes of the CBS series JAG ; as a spin-off from JAG, the series premiered on September 23, 2003, on CBS. To date, it has entered into the 21st full season and has gone into broadcast syndication on the USA Network. Donald P. Bellisario and Don McGill are co-creators and executive producers of the premiere member of the NCIS franchise. As of 2022, NCIS is the third-longest-running scripted, live-action U.S. prime-time TV series currently airing, surpassed only by Law & Order: Special Victims Unit (1999–present) and Law & Order ; it is the seventh-longest-running scripted U.S. prime-time TV series overall.
The United States Special Operations Command is the unified combatant command charged with overseeing the various special operations component commands of the Army, Marine Corps, Navy, and Air Force of the United States Armed Forces. The command is part of the Department of Defense and is the only unified combatant command created by an Act of Congress. USSOCOM is headquartered at MacDill Air Force Base in Tampa, Florida.
Top Gear is a British motoring magazine and currently inactive motoring-themed entertainment television programme. It is a revival devised by Jeremy Clarkson and Andy Wilman of the 1977–2001 show of the same name for the BBC, and premiered on 20 October 2002. The programme focuses on the examination and reviewing of motor vehicles, primarily cars, though this was expanded upon after the broadcast of its earlier series to incorporate films featuring motoring-based challenges, special races, timed laps of notable cars, and celebrity timed laps on a course specially-designed for the relaunched programme. The programme drew acclaim for its visual and presentation style since its launch, which focused on being generally entertaining to viewers, as well as criticism over the controversial nature of its content. The show was also praised for its occasionally controversial humour and lore existing in not just the automotive community but in the form of internet memes and jokes. The programme was aired on BBC Two until it was moved to BBC One for its twenty-ninth series in 2020.
The Robert Mueller special counsel investigation was an investigation into 45th U.S. president Donald Trump regarding Russian interference in the 2016 United States elections and was conducted by special prosecutor Robert Mueller from May 2017 to March 2019. It was also called the Russia investigation, Mueller probe, and Mueller investigation. The investigation focused on three points:
- Russian interference in the 2016 United States elections
- Trump associates and their connection to Russian officials and espionage
- Possible obstruction of justice by Trump and his associates
The 2024 United States House of Representatives elections will be held on November 5, 2024, as part of the 2024 United States elections, to elect representatives from all 435 congressional districts across each of the 50 U.S. states, as well as 6 non-voting delegates from the District of Columbia and the inhabited U.S. territories to the United States House of Representatives. Special elections have also been held on various dates in 2024. Numerous other federal, state, and local elections, including the U.S. presidential election and elections to the Senate, will also be held on this date. The winners of this election will serve in the 119th United States Congress, with seats apportioned among the states based on the 2020 United States census.
