Sonar (disambiguation)
Sonar or SONAR often refers to a technique that uses sound propagation under water.
Sonar may also refer to:
Animals
People
Geography
Art, entertainment, and media
Fictional characters
Films and literature
Music
Computing
Sonar (keelboat)
The Sonar is a 7 m (23 ft) one-design keelboat for three to five people. It is bermuda-rigged, with a large mainsail and a 100% jib. The class is recognised by the International Sailing Federation.
The Sonar showcased disabled sailing at the 1996 Paralympic where the sport was a demonstration event with just the Sonar. Sailing and the Sonar as the equipment for the three person keelboat have been in every subsequent Paralympics. When being sailed by disabled it is crewed by 3, and sailed without a spinnaker. Instead, when running downwind a whisker pole is used to hold the jib out to windward for maximum exposed sail area. The Sonar is well suited for disabled sailing because of its large open cockpit making adaptations easy.
The Sonar was designed in 1979 by Bruce Kirby, designer of the popular Laser dinghy. Since then, over 800 boats have been built. Most of the fleet is in the USA, with smaller fleets in Britain and Canada. Since its adoption as a Paralympic class the Sonar has spread to many other countries as well.
SONAR (Symantec)
SONAR is the abbreviation for Symantec Online Network for Advanced Response. Unlike virus signatures, SONAR examines the behavior of applications to decide whether they are malicious. SONAR is built upon technology Symantec acquired in its late 2005 purchase of WholeSecurity, a developer of behavioral anti-malware and anti-phishing software solutions in the United States.
How it works
An algorithm is used to evaluate hundreds of attributes relating to software running on a computer. Various factors are considered before determining that a program is malicious, such as if the program adds a shortcut on the desktop or creates a Windows Add/Remove programs entry. Both of those factors would indicate the program is not malware. The main use of SONAR is to enhance detection of zero day threats. Symantec claims SONAR can also prevent attackers from leveraging unpatched software vulnerabilities.
Ed Kim, director of product management at Symantec, expressed confidence in SONAR, "We've done extensive testing on emerging threats, and it catches early threats and variants of existing threats."
Day (automobile)
The Day Utility was an automobile manufactured in Detroit, Michigan by the Day Automobile Company from 1911-14. The Day used a four-cylinder, 30 horsepower (22 kW) engine and shaft drive. Removal of the rear seat and doors allowed the car to be converted from a five-seater touring car to a light truck in one minute. As a truck, the Day was able to carry up to 1,000 lb (450 kg) in a 36-inch (910 mm) by 96-inch (2,400 mm) cargo space. The rear seat could be lifted away by triggering two spring locks. The Day had an advertised price of $950US.
References
Day (surname)
Day is a surname. Notable people with the surname Day include:
A-F
Restore the Fourth
Restore the Fourth is an American 501(c)(4) nonprofit that seeks to strengthen the Fourth Amendment to the United States Constitution and end programs that violate it. Following the start of the Global surveillance disclosures, Restore The Fourth organized protests on July 4, 2013 (Independence Day), August 4 (Orwell Day), October 26 (Stop Watching Us), and April 10, 2014 (Shut Down Spy Centers). In 2015, Restore The Fourth helped to introduce the Surveillance State Repeal Act, worked to oppose the renewal of the PATRIOT Act authorities governing mass surveillance, filed an amicus brief in US v. Ganias, and introduced the Decide The Future surveillance scorecard for legislators.
History
Restore the Fourth originated on the social media website reddit shortly after the information leak by Edward Snowden, which detailed the US National Security Agency's (NSA) mass surveillance programs, most notably the PRISM. A subforum (known on reddit as a `subreddit') dedicated to the movement was created, garnering over 15,000 subscribers in 2 weeks. From there, Restore the Fourth moved to Snoonet, an IRC network for reddit communities. Most organization prior to July 4, 2013 occurred there, where local organizers, national organizers, and users from the subreddit collaborated.
Ulmus parvifolia 'Glory'
The Chinese Elm cultivar Ulmus parvifolia 'Glory' is one of the early American selections, best known for its winter hardiness.
Description
'Glory' can reach heights over 13 m.
Pests and diseases
The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.
Cultivation
'Glory' is common in the United States. The tree featured in the elm trials conducted by Northern Arizona University at Holbrook. It is not known to have been introduced to Europe or Australasia. Hardiness: USDA zones 5b–10a.
See Also
Further Reading
Podcasts:
