Tor (anonymity network)

Tor is free software for enabling anonymous communication. The name is an acronym derived from the original software project name The Onion Router, however the correct spelling is "Tor", capitalizing only the first letter. Tor directs Internet traffic through a free, worldwide, volunteer network consisting of more than seven thousand relays to conceal a user's location and usage from anyone conducting network surveillance or traffic analysis. Using Tor makes it more difficult for Internet activity to be traced back to the user: this includes "visits to Web sites, online posts, instant messages, and other communication forms". Tor's use is intended to protect the personal privacy of users, as well as their freedom and ability to conduct confidential communication by keeping their Internet activities from being monitored.

Onion routing is implemented by encryption in the application layer of a communication protocol stack, nested like the layers of an onion. Tor encrypts the data, including the destination IP address, multiple times and sends it through a virtual circuit comprising successive, randomly selected Tor relays. Each relay decrypts a layer of encryption to reveal only the next relay in the circuit in order to pass the remaining encrypted data on to it. The final relay decrypts the innermost layer of encryption and sends the original data to its destination without revealing, or even knowing, the source IP address. Because the routing of the communication is partly concealed at every hop in the Tor circuit, this method eliminates any single point at which the communicating peers can be determined through network surveillance that relies upon knowing its source and destination.

Arm (disambiguation)

An arm is an upper limb of the body.

Arm or ARM may also refer to:

Geography

Science and medicine

Technology

Computing

ARM (novella)

ARM is a science fiction novella by American author Larry Niven. Set in the Known Space cycle, it is the third of five Gil Hamilton detective stories.

Hamilton is called to the scene of a murder. The victim is Dr. Raymond Sinclair, a brilliant scientist who has invented a mysterious device that creates a bubble of accelerated time. The murder scene is a locked apartment at the top of a high-rise, where the prime suspect is a beautiful young woman whom Gil refuses to believe is the killer.

One of the themes running throughout the story, and in fact a vital element in the solution of the mystery, is the loss of an arm. Gil himself lost an arm and had a new one grafted on, using parts from an organ bank which is supplied by the bodies of criminals and "corpsicles", people who underwent cryogenic suspension. At the scene of the crime, a beautiful young woman is discovered unconscious in an "autodoc" (a device for fixing minor injuries or preserving life until help arrives) recovering from the loss of one of her arms. Another character in the story also lost an arm previously, but regards grafts as immoral and wears an advanced prosthetic arm instead. The "accelerated time bubble" has the effect of amputating the arm of anyone who reaches into it, since the arm's metabolism speeds up to the point where the rest of the body cannot supply it with blood.

Long

Long may refer to:

In measurements

In geography

People and characters

Other uses

See also

Sheepshead (game)

Sheepshead or Sheephead is a trick-taking card game related to the Skat family of games. It is the Americanized version of a card game that originated in Central Europe in the late 18th century under the German name Schafkopf. Sheepshead is most commonly played by five players, but variants exist to allow for two to eight players. There are also many other variants to the game rules, and many slang terms used with the game.

Although Schafkopf literally means "sheepshead," it has nothing to do with sheep; the term probably was derived and translated incorrectly from Middle High German and referred to playing cards on a barrel head (from kopf, meaning head, and Schaff, meaning a barrel).

In the United States, sheepshead is most commonly played in Wisconsin as well as the German counties in Southern Indiana, which has large German-American populations, and on the internet. Numerous tournaments are held throughout Wisconsin during the year, with the largest tournament being the "Nationals", held annually in the Wisconsin Dells during a weekend in September, October or November, and mini-tournaments held hourly throughout Germanfest in Milwaukee during the last weekend of each July.

Long (finance)

In finance, a long position in a security, such as a stock or a bond, or equivalently to be long in a security, means the holder of the position owns the security and will profit if the price of the security goes up. Going long is the more conventional practice of investing and is contrasted with going short. An options investor goes long on the underlying instrument by buying call options or writing put options on it.

In contrast, a short position in a futures contract or similar derivative means that the holder of the position will profit if the price of the futures contract or derivative goes down.

See also

Notes

References