Portal:Tecnología

La B54 es una línea de autobús en Myrtle Avenue en Brooklyn , Nueva York . La línea viaja entre Downtown Brooklyn en el oeste y la estación Myrtle–Wyckoff Avenues en el este. La B54 opera desde la estación Fresh Pond Depot de MTA New York City Bus en Ridgewood, Queens . La ruta sirve solo la sección de Myrtle Avenue dentro de Brooklyn; la sección dentro de Queens es servida por el autobús Q55 . La B54 reemplazó a la Myrtle Avenue Line , la primera línea de tranvía en Brooklyn, que fue construida por Brooklyn City Railroad e inaugurada en 1854. Esta línea inicialmente sirvió a la totalidad de Myrtle Avenue con carros tirados por caballos . Fueron reemplazados por tranvías eléctricos en julio de 1893, y luego por las dos rutas de autobús propiedad de la ciudad el 17 de julio de 1949. La Myrtle Avenue Line es distinta de la BMT Myrtle Avenue Line , que es una línea de metro separada que también opera a lo largo de una parte de Myrtle Avenue en Bushwick, Brooklyn . Hasta 1969, la línea BMT también circulaba sobre vías elevadas sobre toda la sección de Brooklyn de Myrtle Avenue. ( Artículo completo... )

A data breach, also known as data leakage, is "the unauthorized exposure, disclosure, or loss of personal information".

Attackers have a variety of motives, from financial gain to political activism, political repression, and espionage. There are several technical root causes of data breaches, including accidental or intentional disclosure of information by insiders, loss or theft of unencrypted devices, hacking into a system by exploiting software vulnerabilities, and social engineering attacks such as phishing where insiders are tricked into disclosing information. Although prevention efforts by the company holding the data can reduce the risk of data breach, it cannot bring it to zero. (Full article...)

Trinity was the code name of the first detonation of a nuclear weapon, conducted by the United States Army at 5:29 a.m. MWT (11:29:21 GMT) on July 16, 1945, as part of the Manhattan Project. The test was of an implosion-design plutonium bomb, nicknamed "The Gadget", of the same design as the Fat Man bomb later detonated over Nagasaki, Japan, on August 9, 1945. Concerns about whether the complex Fat Man design would work led to a decision to conduct the first nuclear test. The code name "Trinity" was assigned by J. Robert Oppenheimer, the director of the Los Alamos Laboratory, possibly inspired by the poetry of John Donne.

The test, both planned and directed by Kenneth Bainbridge, was conducted in the Jornada del Muerto desert about 35 miles (56 km) southeast of Socorro, New Mexico, on what was the Alamogordo Bombing and Gunnery Range (renamed the White Sands Proving Ground just before the test). The only structures originally in the immediate vicinity were the McDonald Ranch House and its ancillary buildings, which scientists used as a laboratory for testing bomb components. Fears of a fizzle prompted construction of "Jumbo", a steel containment vessel that could contain the plutonium, allowing it to be recovered; but ultimately Jumbo was not used in the test. On May 7, 1945, a rehearsal was conducted, during which 108 short tons (98 t) of high explosive spiked with radioactive isotopes was detonated. (Full article...)

Project Alberta, also known as Project A, was a section of the Manhattan Project which assisted in delivering the first nuclear weapons in the atomic bombing of Hiroshima and Nagasaki during World War II.

Project Alberta was formed in March 1945, and consisted of 51 United States Army, Navy, and civilian personnel, including one British scientist. Its mission was three-fold. It first had to design a bomb shape for delivery by air, then procure and assemble it. It supported the ballistic testing work at Wendover Army Air Field, Utah, conducted by the 216th Army Air Forces Base Unit (Project W-47), and the modification of B-29s to carry the bombs (Project Silverplate). After completion of its development and training missions, Project Alberta was attached to the 509th Composite Group at North Field, Tinian, where it prepared facilities, assembled and loaded the weapons, and participated in their use. (Full article...)

NSB Di 6, later designated ME 26 and DE 2700, is a class of twelve diesel-electric locomotives built by Siemens for the Norwegian State Railways (NSB). The prime mover provides a power output of 2,650 kilowatts (3,550 hp), a starting traction effort of 400 kilonewtons (90,000 lb_f) and a maximum speed of 160 kilometres per hour (99 mph). They have a Co′Co′ wheel arrangement. The bidirectional locomotives were designed for use with both passenger and freight trains.

The units were ordered by NSB in 1992 as replacements for the aging Di 3, and were particularly intended for use on the Nordland Line and to a lesser extent on the Røros Line. Construction was done by Maschinenbau Kiel (MaK) in Kiel, Germany, which was then part of Siemens Schienenfahrzeugtechnik. The class is largely based on the MaK-built DB Class 240, with each unit costing 32 million Norwegian krone (NOK). The first units were delivered in March 1996, one year after schedule, but were plagued with faults. By 1999, the entire order was terminated and the locomotives returned to Germany. They were taken over by locomotive lessor Dispolok and were used by various Germany railway companies. Ownership was taken over by Vossloh in 2003, after which most of the class were leased to German passenger train operator Nord-Ostsee-Bahn. In 2008, three units returned to Norway and are used by Cargolink for freight trains. (Full article...)

Maryland Route 228 (MD 228) is a state highway in the U.S. state of Maryland. Known as Berry Road, the state highway runs 6.88 miles (11.07 km) from MD 210 in Accokeek east to U.S. Route 301 (US 301) and MD 5 Business in Waldorf. MD 228, which is a four-lane divided highway for its entire length, is a major commuter route between southwestern Prince George's County and northern Charles County. In conjunction with MD 210, the state highway serves as an alternative to US 301 and MD 5 as a route to Washington, D.C. from Southern Maryland. MD 228 also serves as part of the connection, again via MD 210, between Waldorf and Indian Head Naval Surface Warfare Center.

MD 228 did not originally connect Waldorf with Accokeek; instead, the state highway headed west from Waldorf and turned south near the Prince George's – Charles county line, following what is now MD 229 to Pomfret. The state highway was built from Pomfret to Berry in the late 1920s. MD 228 was completed between Berry and Waldorf in the mid-1930s. MD 228 was expanded to a divided highway in Charles County and extended into Prince George's County in the mid-1990s. In 2000, the Prince George's County section of the state highway was reconstructed as a divided highway west to the MD 210 intersection, which was rebuilt as the second continuous-flow intersection in the U.S. (Full article...)

Mississippi Highway 53 (MS 53) is a state highway in Mississippi. The highway starts at U.S. Highway 49 (US 49) in Gulfport and travels northwestward to MS 603 in Hancock County. The road then travels north to Poplarville, meeting Interstate 59 (I-59). MS 53 ends at MS 26 and US 11 in southwestern Poplarville. The road that became MS 53 has existed since 1928, and the highway was designated in 1950. The highway was completely paved by 1957, and an interchange was created at I-59 in 1967. (Full article...)

Elon Reeve Musk FRS ( nacido el 28 de junio de 1971 ) es un empresario e inversor conocido por sus papeles clave en la empresa espacial SpaceX y la empresa automotriz Tesla, Inc. Otras participaciones incluyen la propiedad de X Corp. , la empresa que opera la plataforma de redes sociales X (anteriormente Twitter ), y su papel en la fundación de Boring Company , xAI , Neuralink y OpenAI . Es el individuo más rico del mundo ; a partir de noviembre de 2024, Forbes estima que su patrimonio neto es de US$304 mil millones. ( Artículo completo... )^[update]

YouTube is an American online video sharing platform owned by Google. YouTube was founded on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim, three former employees of PayPal. Headquartered in San Bruno, California, United States, it is the second-most visited website in the world, after Google Search. In January 2024, YouTube had more than 2.7 billion monthly active users, who collectively watched more than one billion hours of videos every day. As of May 2019^[update], videos were being uploaded to the platform at a rate of more than 500 hours of content per minute, and as of 2023^[update], there were approximately 14 billion videos in total. (Full article...)

ChatGPT is a generative artificial intelligence (AI) chatbot developed by OpenAI and launched in 2022. It is based on the GPT-4o large language model (LLM). ChatGPT can generate human-like conversational responses, and enables users to refine and steer a conversation towards a desired length, format, style, level of detail, and language. It is credited with accelerating the AI boom, which has led to ongoing rapid investment in and public attention to the field of artificial intelligence. Some observers have raised concern about the potential of ChatGPT and similar programs to displace human intelligence, enable plagiarism, or fuel misinformation. (Full article...)

WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. It allows users to send text, voice messages and video messages, make voice and video calls, and share images, documents, user locations, and other content. WhatsApp's client application runs on mobile devices, and can be accessed from computers. The service requires a cellular mobile telephone number to sign up. In January 2018, WhatsApp released a standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client. (Full article...)

Facebook is a social media and social networking service owned by American technology conglomerate Meta. Created in 2004 by Mark Zuckerberg with four other Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes, its name derives from the face book directories often given to American university students. Membership was initially limited to Harvard students, gradually expanding to other North American universities. Since 2006, Facebook allows everyone to register from 13 years old, except in the case of a handful of nations, where the age limit is 14 years. As of December 2022^[update], Facebook claimed almost 3 billion monthly active users. As of October 2023, Facebook ranked as the third-most-visited website in the world, with 22.56% of its traffic coming from the United States. It was the most downloaded mobile app of the 2010s. (Full article...)

Google LLC (/ˈɡuːɡəl/ ^ⓘ GOO-gəl) is an American-based multinational corporation and technology company focusing on online advertising, search engine technology, cloud computing, computer software, quantum computing, e-commerce, consumer electronics, and artificial intelligence (AI). It has been referred to as "the most powerful company in the world" and is one of the world's most valuable brands due to its market dominance, data collection, and technological advantages in the field of AI. Google's parent company, Alphabet Inc., is one of the five Big Tech companies, alongside Amazon, Apple, Meta, and Microsoft. (Full article...)

Amazon.com, Inc., doing business as Amazon (/ˈæməzɒn/, AM-ə-zon; UK also /ˈæməzən/, AM-ə-zən), is an American multinational technology company engaged in e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence. It is considered one of the Big Five American technology companies, the other four being Alphabet (parent company of Google), Apple, Meta (parent company of Facebook), and Microsoft. (Full article...)

Artificial intelligence (AI), in its broadest sense, is intelligence exhibited by machines, particularly computer systems. It is a field of research in computer science that develops and studies methods and software that enable machines to perceive their environment and use learning and intelligence to take actions that maximize their chances of achieving defined goals. Such machines may be called AIs. (Full article...)

Netflix is an American subscription video on-demand over-the-top streaming service. The service primarily distributes original and acquired films and television shows from various genres, and it is available internationally in multiple languages. (Full article...)

The Internet Archive is an American non-profit organization founded in 1996 by Brewster Kahle that runs a digital library website, archive.org. It provides free access to collections of digitized media including websites, software applications, music, audiovisual, and print materials. The Archive also advocates a free and open Internet. Its mission is committing to provide "universal access to all knowledge". (Full article...)