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SpaceX Hypertube Test Track
The Hyperloop Pod Competition was an annual competition sponsored by SpaceX from 2015 to 2019 in which a number of student and non-student teams participate to design—and for some, build—a subscale prototype transport vehicle in order to demonstrate technical feasibility of various aspects of the Hyperloop concept. The competitions have been open to participants globally, although all competitions and judging has occurred in the United States of America. A competition in 2020 on a longer track was envisioned; however, in the event, no longer track was built and the pod-racing competition was superseded in 2021 by a tunnel-boring competition, with the aim for teams to rapidly and accurately build a tunnel -long and -wide. Overview There were three judging phases in the 2015–2017 competition: a design competition that was held in January 2016, and two on-track competitions—27–29 January 2017, and, Competition Weekend II, 25–27 August 2017. The on-track portion of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperloop Pod Competition Tube
A hyperloop is a proposed high-speed Transport, transportion system for both public and goods transport. The idea was picked up by Elon Musk to describe a modern project based on the vactrain concept (first appearance in 1799). Hyperloop systems comprise three essential elements: tubes, pods, and terminals. The tube is a large, sealed and Vacuum#Vacuum-driven machines, low-pressure system (usually a long tunnel). The pod is a coach pressurized at atmospheric pressure that runs substantially free of Drag (physics), air resistance or friction inside this tube using Maglev, magnetic propulsion (in some cases augmented by a ducted fan). The terminal handles pod arrivals and departures. The Hyperloop, in the initial form proposed by Musk, differs from vactrains by relying on residual air pressure inside the tube to provide lift by aerofoils and propulsion by fans. The hyperloop has its roots in a concept by George Medhurst in 1799 and subsequently developed under the names pneumatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Angeles
Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world's most populous megacities. Los Angeles is the commercial, financial, and cultural center of Southern California. With a population of roughly 3.9 million residents within the city limits , Los Angeles is known for its Mediterranean climate, ethnic and cultural diversity, being the home of the Hollywood film industry, and its sprawling metropolitan area. The city of Los Angeles lies in a basin in Southern California adjacent to the Pacific Ocean in the west and extending through the Santa Monica Mountains and north into the San Fernando Valley, with the city bordering the San Gabriel Valley to it's east. It covers about , and is the county seat of Los Angeles County, which is the most populous county in the United States with an estim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accelerate
In mechanics, acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities (in that they have magnitude and direction). The orientation of an object's acceleration is given by the orientation of the ''net'' force acting on that object. The magnitude of an object's acceleration, as described by Newton's Second Law, is the combined effect of two causes: * the net balance of all external forces acting onto that object — magnitude is directly proportional to this net resulting force; * that object's mass, depending on the materials out of which it is made — magnitude is inversely proportional to the object's mass. The SI unit for acceleration is metre per second squared (, \mathrm). For example, when a vehicle starts from a standstill (zero velocity, in an inertial frame of reference) and travels in a straight line at increasing speeds, it is accelerating in the direction of travel. If the vehicle turns, an accel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wall Street Journal
''The Wall Street Journal'' is an American business-focused, international daily newspaper based in New York City, with international editions also available in Chinese and Japanese. The ''Journal'', along with its Asian editions, is published six days a week by Dow Jones & Company, a division of News Corp. The newspaper is published in the broadsheet format and online. The ''Journal'' has been printed continuously since its inception on July 8, 1889, by Charles Dow, Edward Jones, and Charles Bergstresser. The ''Journal'' is regarded as a newspaper of record, particularly in terms of business and financial news. The newspaper has won 38 Pulitzer Prizes, the most recent in 2019. ''The Wall Street Journal'' is one of the largest newspapers in the United States by circulation, with a circulation of about 2.834million copies (including nearly 1,829,000 digital sales) compared with ''USA Today''s 1.7million. The ''Journal'' publishes the luxury news and lifestyle magazine ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CNET
''CNET'' (short for "Computer Network") is an American media website that publishes reviews, news, articles, blogs, podcasts, and videos on technology and consumer electronics globally. ''CNET'' originally produced content for radio and television in addition to its website and now uses new media distribution methods through its Internet television network, CNET Video, and its podcast and blog networks. Founded in 1994 by Halsey Minor and Shelby Bonnie, it was the flagship brand of CNET Networks and became a brand of CBS Interactive through that unit's acquisition of CNET Networks in 2008. It has been owned by Red Ventures since October 30, 2020. Other than English, ''CNETs region- and language-specific editions include Chinese, French, German, Japanese, Korean, and Spanish. History Origins After leaving PepsiCo, Halsey Minor and Shelby Bonnie launched ''CNET'' in 1994, after website Yahoo! was launched. With help from Fox Network co-founder Kevin Wendle and forme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Boring Company
The Boring Company (TBC) is an American infrastructure and tunnel construction services company founded by Elon Musk. Its ongoing and proposed projects are designed for intra-city ("loop") transit systems. After six years TBC has completed one out of six publicly announced projects. The only operational one is situated inside the Las Vegas convention center (LVCC) and operates on limited days for loop travel during conventions. It connects the LVCC West Hall to the existing campus over a stretch of 1.7 miles with an average speed of 30mph in non-autonomous regular Tesla 3 cars that are steered by an driver, despite promised to have 150mph average speeds and autonomous "sleek custom pods". The majority of Las Vegas local residents are not served by the LVCC limited transportation system. The TBC completed one tunnel for testing in Los Angeles County. During the opening of the test tunnel at the end of 2018, it was described as "just a regular Tesla driving through a paved tunnel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Levitation
Levitation (from Latin ''levitas'' "lightness") is the process by which an object is held aloft in a stable position, without mechanical support via any physical contact. Levitation is accomplished by providing an upward force that counteracts the pull of gravity (in relation to gravity on earth), plus a smaller stabilizing force that pushes the object toward a home position whenever it is a small distance away from that home position. The force can be a fundamental force such as magnetic or electrostatic, or it can be a reactive force such as optical, buoyant, aerodynamic, or hydrodynamic. Levitation excludes floating at the surface of a liquid because the liquid provides direct mechanical support. Levitation excludes hovering flight by insects, hummingbirds, helicopters, rockets, and balloons because the object provides its own counter-gravity force. Physics Levitation (on Earth or any planetoid) requires an upward force that cancels out the weight of the object, so that the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TechCrunch
TechCrunch is an American online newspaper focusing on high tech and startup companies. It was founded in June 2005 by Archimedes Ventures, led by partners Michael Arrington and Keith Teare. In 2010, AOL acquired the company for approximately $25 million. Following the 2015 acquisition of AOL and Yahoo by Verizon, the site was owned by Verizon Media from 2015 through 2021. In 2021 Verizon sold its media assets, including AOL, Yahoo, and TechCrunch, to the private equity firm Apollo Global Management, and Apollo integrated them into a new entity called Yahoo. In addition to its news reporting, TechCrunch is also known for its Disrupt conference, an annual technology event hosted in several cities across United States, Europe, and China. History TechCrunch was founded in June 2005 by Archimedes Ventures, led by partners Michael Arrington and Keith Teare. In 2010, AOL acquired the company for approximately $25 million. As of 2013, TechCrunch was available in English, Chine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AECOM
AECOM (, ; formerly AECOM Technology Corporation) is an American multinational infrastructure consulting firm. AECOM has approximately 51,000 employees, and is number 157 on the 2019 Fortune 500 list. The company's official name from 1990 to 2015 was AECOM Technology Corporation, and is now AECOM. The company is listed on the New York Stock Exchange (NYSE) under the ticker symbol ACM and on the Frankfurt Stock Exchange under the ticker symbol E6Z. In August 2021, AECOM announced plans to relocate its global headquarters from Los Angeles, California to Dallas, Texas. History AECOM traces its origins to Kentucky-based Ashland Oil & Refining Company, which in turn grew out of Swiss Drilling Company, founded in Oklahoma in 1910 by J. Fred Miles. He gained control of some 200,000 acres and formed Swiss Oil Company in Lexington. In 1924, Miles launched a refining operation called Ashland Refining Company, headed by Paul Blazer. While the parent company struggled, leading to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fortune 500
The ''Fortune'' 500 is an annual list compiled and published by ''Fortune'' magazine that ranks 500 of the largest United States corporations by total revenue for their respective fiscal years. The list includes publicly held companies, along with privately held companies for which revenues are publicly available. The concept of the ''Fortune'' 500 was created by Edgar P. Smith, a ''Fortune'' editor, and the first list was published in 1955. The ''Fortune'' 500 is more commonly used than its subset ''Fortune'' 100 or superset ''Fortune'' 1000. History The ''Fortune'' 500, created by Edgar P. Smith, was first published in 1955. The original top ten companies were General Motors, Jersey Standard, U.S. Steel, General Electric, Esmark, Chrysler, Armour, Gulf Oil, Mobil, and DuPont. Methodology The original ''Fortune'' 500 was limited to companies whose revenues were derived from manufacturing, mining, and energy exploration. At the same time, ''Fortune'' published compani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperloop Construction Partners
A hyperloop is a proposed high-speed transportion system for both public and goods transport. The idea was picked up by Elon Musk to describe a modern project based on the vactrain concept (first appearance in 1799). Hyperloop systems comprise three essential elements: tubes, pods, and terminals. The tube is a large, sealed and low-pressure system (usually a long tunnel). The pod is a coach pressurized at atmospheric pressure that runs substantially free of air resistance or friction inside this tube using magnetic propulsion (in some cases augmented by a ducted fan). The terminal handles pod arrivals and departures. The Hyperloop, in the initial form proposed by Musk, differs from vactrains by relying on residual air pressure inside the tube to provide lift by aerofoils and propulsion by fans. The hyperloop has its roots in a concept by George Medhurst in 1799 and subsequently developed under the names pneumatic railway, atmospheric railway or vactrain. Elon Musk renewed in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
