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Reflex sights are optical or computing sights that reflect a reticle image (or images) onto a combining glass for superimposition on the target. Reflex sights are most commonly configured as non-magnifying firearm sights (such as the M68 red dot sight), but they are also used to aid targeting on other devices, such as telescopes and point-and-shoot digital cameras. Reflex sights should not be confused with laser sights, which actually project a point of light directly onto a target. Reflex sights use refractive or reflective optical collimators to generate a collimated image of a luminous or reflective reticle. This collimated image is reflected off a dichroic mirror or beam splitter to allow the viewer to see the field of view and a reflection of the projected reticle (e.g. a red dot) simultaneously. If no magnification is utilized, this gives the viewer a theoretically parallax-free image of the reticle, superimposed over the field of view at infinity. A reflex sight with no magnification can be held at any distance from the eye (see eye relief), and at almost any angle, without distorting the image of the target or reticle, and without causing the reticle to "move" relative to the target. But parallax compensation is not perfect, and depending on the sight's design, the range to the target, and the magnitude of angle at which it is looked into, aiming error can be non-trivial due to parallax. Magnified reflex sights suffer from parallax and fixed eye relief just like conventional telescopic sights. Nevertheless, many reflex sights are available with magnification. The U.S. military has widely-deployed the Advanced Combat Optical Gunsight (ACOG) telescopic reflex sight, but reflex sights are also readily found in conventional-looking rifle scope configurations, used for such activities as hunting and target shooting. Because reflex sights provide an illuminated reticle, they are often used with both eyes open (the brain will tend to automatically superimpose the illuminated reticle image coming from the dominant eye onto the other eye's unobstructed view), giving the shooter normal depth perception and full field of view. This capability, along with the parallax compensation found in un-magnified devices, makes target acquisition very fast compared to standard telescopic sights and iron sights. Un-magnified reflex sights are particularly suitable for installation on a wide variety of weapons used for close-range engagement, e.g. pistols, submachine guns, and shotguns. [READ THE REST OF THIS ARTICLE]

William Melvin "Bill" Hicks (December 16, 1961 February 26, 1994) was a seminal American stand-up comedian and social critic. His humor challenged mainstream beliefs, aiming to "enlighten people to think for themselves." Hicks used a ribald approach to express his material, describing himself as "Chomsky with dick jokes." His jokes included general discussions about society, religion, politics, philosophy and personal issues. Hicks' material was often deliberately controversial and steeped in black comedy. In both his stand-up performances, and during interviews, he often criticized consumerism, superficiality, mediocrity and banality within the media and popular culture, describing them as oppressive tools of the ruling class, meant to "keep people stupid and apathetic." For many years, Hicks was friends with fellow comedian Denis Leary. However, in 1993, Hicks was angered upon hearing Leary's album No Cure for Cancer. While he had laughed off similarities between the two comedians before, the parallels between the album and Hicks' material (including jokes about smoking, Jim Fixx, and Judas Priest) and tone were clear. Reportedly, upon hearing the album, "Bill was furious. All these years, aside from the occasional jibe, he had pretty much shrugged off Leary's lifting. Comedians borrowed, stole stuff and even bought bits from one another. Milton Berle and Robin Williams were famous for it. This was different. Leary had, practically line for line, taken huge chunks of Bill's act and recorded it." The friendship ended abruptly as a result. At least three stand-up comedians have gone on the record stating they believe Leary stole Hicks' material as well as his persona and attitude. In an interview, when Hicks was asked why he had quit smoking, he answered, "I just wanted to see if Denis would, too." In another interview, Hicks famously told an interviewer: "I have a scoop for you. I stole his (Leary's) act. I camouflaged it with punchlines, and to really throw people off, I did it before he did." In April 1993, while touring in Australia, Hicks started complaining of pains in his side, and on June 16 of that year, he was diagnosed with pancreatic cancer that had spread to his liver. After being diagnosed with cancer, Hicks would often joke openly at performances exclaiming it would be his last. Hicks performed the actual final show of his career at Caroline's in New York on January 6, 1994. He moved back to his parents' house in Little Rock, Arkansas, shortly thereafter. He spent time with his parents, playing them the music he loved and showing them documentaries about his interests. He died of cancer in the presence of his parents at 11:20 p.m. on February 26, 1994. Hicks was buried in the family plot in Leakesville, Mississippi. A film about Hicks' life and career, rumored to be directed by Ron Howard, is said to be in pre-production. Russell Crowe has been mentioned as one of the producers and may portray Hicks as well. [READ THE REST OF THIS ARTICLE]


Pit Bull is a term commonly used to describe several breeds of dog in the molosser family. Many breed-specific laws use the term "pit bull" to refer to the modern American Pit Bull Terrier, American Staffordshire Terrier, and Staffordshire Bull Terrier, and dogs with significant mixes of these breeds; however, a few jurisdictions also classify the modern American Bulldog and Bull Terrier as a "pit bull-type dog". All three breeds share similar history, with origins rooted from the bulldog and a variety of terriers. The term can also refer to dogs that were known as "bull terriers" prior to the development of the modern Bull Terrier in the early 20th century. Research has been conducted into human fatalities related to Pit bull type dogs due to a number of well publicized incidents. These incidents have resulted in breed-specific legislation being enacted in several jurisdictions. This in turn has led to an increase in rates of liability insurance, and in some cases has led to airlines placing restrictions on air travel for these types of dogs, although in some cases these restrictions are in place for the dogs' own well-being. The number of fatalities attributed to pit bull-type dogs is not affected by a physiological "locking mechanism" since there is no evidence for the existence of such a mechanism in the teeth or jaw structure of normal pit bull-type dogs, although any dog's jaws can be locked in a closed position by surgically-correctable jaw abnormalities. Despite the lack of a physiological "jaw locking" mechanism, pit bull-type dogs often exhibit "bite, hold, and shake" behavior and refuse to release when biting, so some pit bull rescue organizations and advocacy groups recommend owners of pit bull-type dogs carry a "break stick" to lever their dog's jaws open if it bites a person or animal. [READ THE REST OF THIS ARTICLE]

Tetraodontidae is a family of primarily marine and estuarine fish. The family includes many familiar species which are variously called puffers, balloonfish, blowfish, bubblefish, globefish, swellfish, toadfish, and toadies. They are morphologically similar to the closely related porcupinefish, which have large conspicuous spines (unlike the small, almost sandpaper-like spines of Tetraodontidae). The scientific name, Tetraodontidae, refers to the four large teeth, fused into an upper and lower plate, which are used for crushing the shells of crustaceans and mollusks, and red worms, their natural prey. Puffer fish are the second most poisonous vertebrate in the world, the first being a Golden Poison Frog. The skin and certain internal organs of many tetraodontidae are highly toxic to humans, but nevertheless the meat of some species is considered a delicacy in both Japan (as fugu) and Korea (as bok-uh). If one is caught while fishing, it is recommended that thick gloves are worn to avoid poisoning and getting bitten when removing the hook. The puffers's unique and distinctive natural defenses are a compensation for their particular form of locomotion. Puffers use a combination of pectoral, dorsal, anal, and caudal fins for propulsion that make them highly maneuverable but very slow, and therefore comparatively easy targets for predators. As a defense mechanism, puffers have the ability to inflate rapidly, filling their extremely elastic stomachs with water (or air when outside the water) until they are almost spherical in shape. Thus, a hungry predator stalking the puffers may suddenly find itself facing what seems to be a much larger fish and pause, giving the puffers an opportunity to retreat to safety. When lifted out of water there is a risk that puffers inflate with air. [READ THE REST OF THIS ARTICLE] is not affiliated with or endorsed by wikipedia. wikipedia and the wikipedia globe are registered trademarks of
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