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HandWiki is the world's largest wiki-style encyclopedia dedicated to science, technology and computing. It allows you to create and edit articles as long as you have external citations and login account. In addition, this is a content management environment that can be used for collaborative editing of original scholarly content, such as books, manuals, monographs and tutorials.

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FYFT M-series Unmanned Blimp
FYFT M-series unmanned blimps are Chinese UAVs developed by Qingdao Co., Ltd. Fei-Yu (meaning Flying Universe) Aviation Science and Technology Co., Ltd. (FYFT, 青岛飞宇有限公司), and these unmanned blimps are named after their respective length. For example: if an M4 series blimp is 11 meter long, then it is named M4-1100, because 11 meter is equal to 1100 millimeter. M-series unmanned blimps are intended for military and para-military use with M stands for Military. The greatest difference between M-series and other unmanned blimps for civilian use such as S-series unmanned blimps for aerial survey is that for military application, data link is added to provide real-time or near real-time transmission of information gathered so troops can respond in a timely manner, as opposed to civilian versions where information is downloaded and evaluated after the UAVs have landed.
  • 499
  • 14 Oct 2022
Topic Review
Shadow of the Beast
Shadow of the Beast is a platform game developed by Reflections and published by Psygnosis in 1989. The original version was released for the Amiga, and was later ported to many other systems. The game was known for its graphics, with many colours on screen and up to twelve levels of parallax scrolling backdrops, and for its atmospheric score composed by David Whittaker that used high-quality instrument samples. It was followed by two sequels, Shadow of the Beast II in 1990 and Shadow of the Beast III in 1993. A remake was released for the PlayStation 4 in May 2016, and included the Amiga original.
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  • 14 Oct 2022
Topic Review
Compass Card (TransLink)
The Compass Card is a contactless smart card payment system primarily used for public transit in Metro Vancouver, British Columbia, Canada. It is operated by TransLink. Riders purchase a Compass Card and add fare value online, by phone, or at vending machines located at SeaBus terminals, SkyTrain and West Coast Express stations. Vending machines are also available at 18 participating London Drugs retail store locations. Compass Cards were deployed in August 2015. Full deployment for the general public took place on November 2, 2015. Since April 4, 2016, Compass Cards and Tickets have been required for all trips taken on the SkyTrain, SeaBus, and West Coast Express. In June 2016, TransLink reported that 100 percent of monthly pass users and 95 percent of all other users have switched over to the new format, totalling more than 915,000 customers.
  • 8.4K
  • 14 Oct 2022
Topic Review
Udwadia–Kalaba Equation
In theoretical physics, the Udwadia–Kalaba equation is a method for deriving the equations of motion of a constrained mechanical system. The equation was first described by Firdaus E. Udwadia and Robert E. Kalaba in 1992. The approach is based on Gauss's principle of least constraint. The Udwadia–Kalaba equation applies to both holonomic constraints and nonholonomic constraints, as long as they are linear with respect to the accelerations. The equation generalizes to constraint forces that do not obey D'Alembert's principle.
  • 1.4K
  • 14 Oct 2022
Topic Review
Middle East Respiratory Syndrome
Middle East respiratory syndrome (MERS), also known as camel flu, is a viral respiratory infection caused by Middle East respiratory syndrome–related coronavirus (MERS-CoV). Symptoms may range from none, to mild, to severe. Typical symptoms include fever, cough, diarrhea, and shortness of breath. The disease is typically more severe in those with other health problems. MERS-CoV is a coronavirus believed to be originally from bats. However, humans are typically infected from camels, either during direct contact or indirectly. Spread between humans typically requires close contact with an infected person. Its spread is uncommon outside of hospitals. Thus, its risk to the global population is currently deemed to be fairly low. Diagnosis is by rRT-PCR testing of blood and respiratory samples. (As of 2021) there is no specific vaccine or treatment for the disease, but a number are being developed. The World Health Organization (WHO) recommends that those who come in contact with camels wash their hands and not touch sick camels. They also recommend that camel-based food products be appropriately cooked. Treatments that help with the symptoms and support body functioning may be used. The first identified case occurred in June 2012 in Jeddah, Saudi Arabia, and most cases have occurred in the Arabian Peninsula. Over 2,500 cases have been reported as of January 2021, including 45 cases in the year 2020. About 35% of those who are diagnosed with the disease die from it. Larger outbreaks have occurred in South Korea in 2015 and in Saudi Arabia in 2018.
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  • 14 Oct 2022
Topic Review
Alpha Indexes
Nasdaq OMX Alpha Indexes measure the relative performance of an underlying stock or exchange-traded fund (ETF) against another benchmark ETF using a proprietary calculation. The first component in the index is the “Target Component”, such as Apple (AAPL), and the second component is identified as a “Benchmark Component”, such as the S&P 500 ETF (SPY). The Nasdaq OMX Alpha Indexes were developed by Jacob S. Sagi and Robert E. Whaley, both professors at the Owen Graduate School of Management, Vanderbilt University. They published a research paper “Trading Relative Performance with Alpha Indexes” in the November/ December 2011 issue of Financial Analysts Journal detailing the concept behind Alpha Indexes. Nasdaq OMX launched the live calculation and dissemination of Alpha Indexes on October 11, 2010. The Alpha Indexes were set at 100.00 as of January 1, 2010. Thus each disseminated index depicts a target component’s return performance versus its benchmark since January 1, 2010. For example, the Alpha Index for AAPL with SPY as the benchmark, which trades under the symbol AVSPY, had a level of 199.91 on 11/09/12. This means that over the period between 1/1/2010 until 11/09/2012 an investment in AAPL outperformed an investment in SPY by +99.91%
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  • 14 Oct 2022
Topic Review
Alexandrian Rite
The Alexandrian Rite is the liturgical rite used by the Oriental Orthodox Coptic Orthodox Church of Alexandria, Eritrean Orthodox Tewahedo Church and Ethiopian Orthodox Tewahedo Church, as well as by the Eastern Catholic Coptic Catholic Church, Eritrean Catholic Church, and Ethiopian Catholic Church. The Alexandrian rite's Divine Liturgy contains elements from the liturgies of Saints Mark the Evangelist (who is traditionally regarded as the first bishop of Alexandria), Basil the Great, Cyril the Great, and Gregory Nazianzus. The Liturgy of Saint Cyril is a Coptic language translation from Greek of the Liturgy of Saint Mark. The Alexandrian Rite is sub-grouped into two rites: the Coptic Rite and the Ge'ez Rite.
  • 1.4K
  • 14 Oct 2022
Topic Review
Rick Perry
James Richard "Rick" Perry (born March 4, 1950) is an American politician who served as the 14th United States Secretary of Energy from 2017 to 2019. A member of the Republican Party, he previously served as the 47th Governor of Texas from 2000 to 2015, having been elected Lieutenant Governor of Texas in 1998 and later assuming the office from George W. Bush. Perry ran unsuccessfully for the nomination for President of the United States in 2012 and 2016. President Donald Trump nominated him as Secretary of Energy; he was confirmed by the United States Senate in a 62–37 vote on March 2, 2017. On October 17, 2019, Perry reported to President Trump that he intended to resign as Secretary of Energy at the end of the year. He left office on December 1, 2019.
  • 2.0K
  • 14 Oct 2022
Topic Review
Sexual Fetishism
Sexual fetishism or erotic fetishism is a sexual fixation on a nonliving object or nongenital body part. The object of interest is called the fetish; the person who has a fetish for that object is a fetishist. A sexual fetish may be regarded as a non-pathological aid to sexual excitement, or as a mental disorder if it causes significant psychosocial distress for the person or has detrimental effects on important areas of their life. Sexual arousal from a particular body part can be further classified as partialism. While medical definitions restrict the term sexual fetishism to objects or body parts, fetish can, in common discourse, also refer to sexual interest in specific activities.
  • 7.3K
  • 14 Oct 2022
Topic Review
Charles Stark Draper Laboratory
Draper is an United States not-for-profit research and development organization, headquartered in Cambridge, Massachusetts; its official name is "The Charles Stark Draper Laboratory, Inc". The laboratory specializes in the design, development, and deployment of advanced technology solutions to problems in national security, space exploration, health care and energy. The laboratory was founded in 1932 by Charles Stark Draper at the Massachusetts Institute of Technology (MIT) to develop aeronautical instrumentation, and came to be called the "MIT Instrumentation Laboratory". It was renamed for its founder in 1970 and separated from MIT in 1973 to become an independent, non-profit organization. The expertise of the laboratory staff includes the areas of guidance, navigation, and control technologies and systems; fault-tolerant computing; advanced algorithms and software solutions; modeling and simulation; and microelectromechanical systems and multichip module technology.
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  • 14 Oct 2022
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