Summary

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.

Expand All
Entries
Topic Review
Sportsmanship
Sportsmanship is an aspiration or ethos that a sport or activity will be enjoyed for its own sake. This is with proper consideration for fairness, ethics, respect, and a sense of fellowship with one's competitors. A "sore loser" refers to one who does not take defeat well, whereas a "good sport" means being a "good winner" as well as being a "good loser" (someone who shows courtesy towards another in a sports game).
  • 3.5K
  • 16 Nov 2022
Topic Review
Gecko
Gecko is a browser engine developed by Mozilla. It is used in the Firefox browser, the Thunderbird email client, and many other projects. Gecko is designed to support open Internet standards, and is used by different applications to display web pages and, in some cases, an application's user interface itself (by rendering XUL). Gecko offers a rich programming API that makes it suitable for a wide variety of roles in Internet-enabled applications, such as web browsers, content presentation, and client/server. Gecko is written in C++ and JavaScript, and, since 2016, additionally in Rust. It is free and open-source software subject to the terms of the Mozilla Public License version 2. Mozilla officially supports its use on Android, Linux, macOS, and Windows.
  • 1.6K
  • 11 Nov 2022
Topic Review
Aperiodic Frequency
Frequency is the number of occurrences of a repeating event per unit of time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. Frequency is measured in units of hertz (Hz) which is equal to one occurrence of a repeating event per second. The period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency. For example: if a newborn baby's heart beats at a frequency of 120 times a minute (2 hertz), its period, T, — the time interval between beats—is half a second (60 seconds divided by 120 beats). Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals (sound), radio waves, and light.
  • 1.2K
  • 11 Nov 2022
Topic Review
Counterparty (Technology)
Counterparty is a financial platform for creating peer-to-peer financial applications on the bitcoin blockchain. The protocol specification and all Counterparty software is open source. The reference client is counterpartyd and a web wallet called Counterwallet showcases all protocol features. The protocol’s native currency, XCP, is the fuel that powers Counterparty. It is slightly deflationary, with approximately 2.6 million XCP having been created by burning Bitcoins in January 2014. Counterparty provides users with the world's first functioning decentralized digital currency exchange, as well as the ability to create their own virtual assets, issue dividends, create price feeds, bets and contracts for difference.
  • 1.2K
  • 11 Nov 2022
Topic Review
Comparison of Mail Servers
This is a comparison of mail servers: mail transfer agents, mail delivery agents, and other computer software that provide e-mail services. Unix based mail servers are built using a number of components because a Unix style environment is, by default, a toolbox operating system. A stock Unix-like server already has internal mail, more traditional ones also come with a full MTA already part of the standard installation. To allow the server to send external emails, an MTA such as Sendmail, Postfix, or Exim is required. Mail is read either through direct access (shell login) or mailbox protocols like POP and IMAP. Unix based MTA software largely acts as enhancement or replacement of the respective system's "native" MTA. Windows servers do not natively implement email. Windows based MTAs therefore have to cover the whole set of email related functionality.
  • 2.6K
  • 11 Nov 2022
Biography
Joseph A. Walker
Joseph Albert Walker (February 20, 1921 – June 8, 1966) flew the world's first two spaceplane flights in 1963, thereby becoming the United States' seventh man in space. Walker was a Captain in the United States Air Force , an American World War II pilot, an experimental physicist, a NASA test pilot, and a member of the U.S. Air Force Man In Space Soonest spaceflight program. His two X-15 exper
  • 2.1K
  • 15 Nov 2022
Topic Review
Jewish Atheism
Jewish atheism refers to the atheism of people who are ethnically and (at least to some extent) culturally Jewish. Because Jewish identity is ethnoreligious (i.e., it encompasses ethnic as well as religious components), the term "Jewish atheism" does not inherently entail a contradiction. Based on Jewish law's emphasis on matrilineal descent, even religiously conservative Orthodox Jewish authorities would accept an atheist born to a Jewish mother as fully Jewish.
  • 3.5K
  • 11 Nov 2022
Topic Review
Acute Biphenotypic Leukaemia
Acute biphenotypic leukaemia is an uncommon type of leukemia which arises in multipotent progenitor cells which have the ability to differentiate into both myeloid and lymphoid lineages. It is a subtype of "leukemia of ambiguous lineage". The direct reasons leading to BAL are still not clear. BAL can be de novo or secondary to previous cytotoxic therapy. Many factors, such viruses, hereditary factors, and radiation, might have a relationship with BAL. BAL is hard to treat. Usually the chemotherapy is chosen according to the morphology of the blast (ALL or AML). A blood-forming stem-cell transplantation is highly recommended. About 5% of acute leukaemia cases are BAL. BAL can occur in all ages of people but occurs more in adults than in children.
  • 970
  • 11 Nov 2022
Topic Review
Industrial Fan
Industrial fans and blowers are machines whose primary function is to provide and accommodate a large flow of air or gas to various parts of a building or other structures. This is achieved by rotating a number of blades, connected to a hub and shaft, and driven by a motor or turbine. The flow rates of these mechanical fans range from approximately 200 cubic feet (5.7 m3) to 2,000,000 cubic feet (57,000 m3) per minute. A blower is another name for a fan that operates where the resistance to the flow is primarily on the downstream side of the fan.
  • 1.0K
  • 11 Nov 2022
Topic Review
Thematic Apperception Test
Thematic apperception test (TAT) is a projective psychological test developed during the 1930s by Henry A. Murray and Christiana D. Morgan at Harvard University. Proponents of the technique assert that subjects' responses, in the narratives they make up about ambiguous pictures of people, reveal their underlying motives, concerns, and the way they see the social world. Historically, the test has been among the most widely researched, taught, and used of such techniques.
  • 3.2K
  • 11 Nov 2022
  • Page
  • of
  • 863

Other Entry Collections

>>