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2021 Mexico City Metro PCCI Fire
A fire at the PCCI (Spanish: ''Puesto Central de Control I'' — Central Control Center I) of the Mexico City Metro took place on 9 January 2021 at 05:48 hours at the PCCI building. A female police officer was killed and 31 others were injured, mainly due to smoke poisoning. Events The incident occurred at 05:48 am (local time) on 9 January 2021, when two power electrical substations caused a short circuit within the Central Control Center I (or No. 1), immediately starting a fire of considerable proportions; the fire alarm at the site was immediately activated and several workers on the center attempted to escape. On the other hand, the Mexico City Metro, which at that time was preparing to start service that day, was unable to do so on lines 1, 2, 3, 4, 5 and 6; it was reported that the service would be suspended temporarily while the fire in the plant was controlled and the damage was evaluated. Passengers who required the service at that time found it difficult to move, so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico City
Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley of Mexico within the high Mexican central plateau, at an altitude of . The city has 16 boroughs or ''demarcaciones territoriales'', which are in turn divided into neighborhoods or ''colonias''. The 2020 population for the city proper was 9,209,944, with a land area of . According to the most recent definition agreed upon by the federal and state governments, the population of Greater Mexico City is 21,804,515, which makes it the sixth-largest metropolitan area in the world, the second-largest urban agglomeration in the Western Hemisphere (behind São Paulo, Brazil), and the largest Spanish language, Spanish-speaking city (city proper) in the world. Greater Mexico City has a gross domestic product, GDP of $411 billion in 2011, which makes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico City Metro
The Mexico City Metro ( es, Metro de la Ciudad de México) is a rapid transit system that serves the metropolitan area of Mexico City, including some municipalities in Mexico State. Operated by the Sistema de Transporte Colectivo (STC), it is the second largest metro system in North America after the New York City Subway. In 2019, the system served 1.655 billion passengers, the tenth highest ridership in the world. The inaugural STC Metro line was long, serving 16 stations, and opened to the public on 4 September 1969. The system has expanded since then in a series of fits and starts. , the system has 12 lines, serving 195 stations, and of route. Ten of the lines are rubber-tired. Instead of traditional steel wheels, they use pneumatic traction, which is quieter and rides smoother in Mexico City's unstable soils. The system survived the 1985 Mexico City earthquake. Of the STC Metro's 195 stations, 44 serve two or more lines (''correspondencias'' or transfer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Police Officer
A police officer (also called a policeman and, less commonly, a policewoman) is a warranted law employee of a police force. In most countries, "police officer" is a generic term not specifying a particular rank. In some, the use of the rank "officer" is legally reserved for military personnel. Police officers are generally charged with the apprehension of suspects and the prevention, detection, and reporting of crime, protection and assistance of the general public, and the maintenance of public order. Police officers may be sworn to an oath, and have the power to arrest people and detain them for a limited time, along with other duties and powers. Some officers are trained in special duties, such as counter-terrorism, surveillance, child protection, VIP protection, civil law enforcement, and investigation techniques into major crime including fraud, rape, murder, and drug trafficking. Although many police officers wear a corresponding uniform, some police officers a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. They are a common component of the infrastructure, for instance there are 55,000 substations in the United States. Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control. The word ''substation'' comes from the days before the distribution system became a grid. As central generation stations became ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short Circuit
A short circuit (sometimes abbreviated to short or s/c) is an electrical circuit that allows a current to travel along an unintended path with no or very low electrical impedance. This results in an excessive current flowing through the circuit. The opposite of a short circuit is an "open circuit", which is an infinite resistance between two nodes. Definition A short circuit is an abnormal connection between two nodes of an electric circuit intended to be at different voltages. This results in an electric current limited only by the Thévenin equivalent resistance of the rest of the network which can cause circuit damage, overheating, fire or explosion. Although usually the result of a fault, there are cases where short circuits are caused intentionally, for example, for the purpose of voltage-sensing crowbar circuit protectors. In circuit analysis, a ''short circuit'' is defined as a connection between two nodes that forces them to be at the same voltage. In an 'ideal' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mexico City Metro Lines
The Mexico City Metro is the largest and busiest heavy-rail rapid transit system in Mexico and second in North America, only behind the New York City Subway. , the system is composed of 12 lines denominated 1 through 9, 12, A and B, totalling of track length and 195 stations. Of all stations, 115 are underground (either in shallow box-tunnels or deep circular tunnels), 54 are at street-level and 26 are elevated. Line 1: Observatorio – Pantitlán Line 1's Chapultepec - Zaragoza section was the first of the system to be opened, on September 4, 1969. The line was brought to its current length on August 22, 1984 with its final extension from Zaragoza to Pantitlán. Line 1 runs mostly in a shallow box-tunnel just a few meters below the street, except for its initial stretch from Observatorio to Tacubaya, where it starts at street-level and progressively goes down to a deep circular tunnel through Tacubaya, where the box-tunnel begins. Line 1 is served by MP-68, NM-83 and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico City Police
Law enforcement in Mexico City is provided by two primary agencies; the Secretariat of Citizen Security of Mexico City (Secretaría de Seguridad ciudadana de la ciudad de México), who provides uniformed or preventative police, and the Office of the Attorney General of Mexico City (Fiscalía General de Justicia de la Ciudad de México) who provides plainclothes detectives and crime lab services. Secretariat of citizen Security The Secretariat of citizen Security of Mexico City ( es, Secretaría de Seguridad Ciudadana la Ciudad de México; SSC) is the uniformed law enforcement agency of Mexico City, headquartered in Venustiano Carranza. It manages a combined force of over 100,000 officers in Mexico City. The Mexico City Police (Policía Ciudad de México) is the police department of Mexico City. Mexico City contains the seat of the federal Mexican government. There are 8.84 million residents of the city, according to 2009 estimates, and another 21.1 million people in the metropol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head Of Government Of Mexico City
The Head of Government ( es, Jefe de Gobierno) wields the executive power in Mexico City. The Head of Government serves a six-year term, running concurrently with that of the President of the Republic. Mexico City, or CDMX, is the seat of national executive, legislative, and judicial power, and is largely contiguous with the core of the sprawling Mexico City conurbation. Background According to Article 122 of the Constitution, "the Head of Government of the Federal District shall be responsible for executive power and public administration in the district and shall be represented by a single individual, elected by universal, free, direct, and secret suffrage." The title is commonly rendered in English as "Mayor of Mexico City" but in reality the position does not correspond exactly to the mayor of a municipality. Even though the position is called Head of Government, it has the rank of governor of a state and has a seat at the National Governors Conference. For the greater pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claudia Sheinbaum
Claudia Sheinbaum Pardo (born 24 June 1962) is a Mexican scientist, politician, and head of government of Mexico City, a position equivalent to a state governor. She was elected on 1 July 2018 as part of the Juntos Haremos Historia coalition. She is the second woman and the first Jew to be elected to this position in Mexico City. Sheinbaum has a Ph.D. in energy engineering, and is the author of over 100 articles and two books on the topics of energy, the environment, and sustainable development. She served as the Secretary of the Environment of Mexico City from 2000 to 2006 during Andrés Manuel López Obrador's term as mayor, and she was the Mayor of Tlalpan from 2015 to 2017. She contributed to the Intergovernmental Panel on Climate Change, which received the Nobel Peace Prize in 2007. In 2018, she was listed as one of BBC's ''100 Women''. Sheinbaum has been widely mentioned as a possible candidate in the 2024 presidential election. Early life Claudia Sheinbaum Pardo was b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twitter
Twitter is an online social media and social networking service owned and operated by American company Twitter, Inc., on which users post and interact with 280-character-long messages known as "tweets". Registered users can post, like, and 'Reblogging, retweet' tweets, while unregistered users only have the ability to read public tweets. Users interact with Twitter through browser or mobile Frontend and backend, frontend software, or programmatically via its APIs. Twitter was created by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams (Internet entrepreneur), Evan Williams in March 2006 and launched in July of that year. Twitter, Inc. is based in San Francisco, California and has more than 25 offices around the world. , more than 100 million users posted 340 million tweets a day, and the service handled an average of 1.6 billion Web search query, search queries per day. In 2013, it was one of the ten List of most popular websites, most-visited websites and has been de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2021 In Mexico
article lists events occurring in Mexico during the year 2021. The article lists the most important political leaders during the year at both federal and state levels and will include a brief year-end summary of major social and economic issues. Cultural events, including major sporting events, are also listed. For a more expansive list of political events, see 2021 in Mexican politics and government. Incumbents President and cabinet * President: Andres Manuel López Obrador * Interior: Olga Sánchez Cordero * Foreign Affairs: Marcelo Ebrard * Treasury: Arturo Herrera * Economy **Graciela Márquez Colín (until January 5) **Tatiana Clouthier Carrillo (starting January 5) * Environment: Maria Luisa Albores * Tourism: Miguel Torruco Marqués * Civil Service: Irma Sandoval-Ballesteros * Health: Jorge Alcocer Varela * Development: Román Guillermo Meyer * Welfare: Javier May Rodríguez * Culture: Alejandra Frausto Guerrero * Defense: Luis Cresencio Sandoval * Navy: José Rafa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2021 Fires In North America
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 positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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