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117-553: Mitch MacAfee (Morrow), a civil aeronautical engineer, while engaged in a radar test flight near the North Pole , spots an unidentified flying object . Three jet fighter aircraft are scrambled to pursue and identify the object but one aircraft goes missing. Officials are initially angry at MacAfee over the loss of a pilot and jet over what they believe to be a hoax. When MacAfee and mathematician Sally Caldwell (Corday) fly back to New York , their aircraft also comes under attack by

234-492: A Poverty Row studio on Hollywood's famously low-rent Gower Street . Among Hollywood's elite, the studio's small-time reputation led some to joke that "CBC" stood for "Corned Beef and Cabbage". CBC was reorganized as Columbia Pictures Corporation by brothers Harry and Jack Cohn and best friend Joe Brandt on January 10, 1924. Harry Cohn became president in 1932 and remained head of production as well, thus concentrating enormous power in his hands. He would run Columbia for

351-470: A fractal surface, such as rocks or soil, and are used by navigation radars. A radar beam follows a linear path in vacuum but follows a somewhat curved path in atmosphere due to variation in the refractive index of air, which is called the radar horizon . Even when the beam is emitted parallel to the ground, the beam rises above the ground as the curvature of the Earth sinks below the horizon. Furthermore,

468-403: A receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving information about the objects' locations and speeds. Radar was developed secretly for military use by several countries in the period before and during World War II . A key development was the cavity magnetron in

585-424: A transmitter that emits radio waves known as radar signals in predetermined directions. When these signals contact an object they are usually reflected or scattered in many directions, although some of them will be absorbed and penetrate into the target. Radar signals are reflected especially well by materials of considerable electrical conductivity —such as most metals, seawater , and wet ground. This makes

702-467: A UFO. With their pilot dead, they crash-land in the Adirondacks , where Pierre Broussard ( Lou Merrill ), a French-Canadian farmer, comes to their rescue, and reports seeing a giant monster bird he calls La Carcagne . MacAfee's report is met with bewilderment and skepticism, but the military authorities are forced to take his story seriously after several more aircraft disappear. They discover that

819-606: A Winter's Tale", about la Carcagne , the "mythical bird-like banshee from French-Canadian folklore ". The Adams story was published in The New Yorker in January 1951. A character in The Giant Claw (Pierre Broussard) mistakes the menacing bird for la Carcagne , said to be a monster resembling a giant woman with a wolf's head and bat-like black wings and which, like the banshee, is a harbinger of death. Under

936-482: A different dielectric constant or diamagnetic constant from the first, the waves will reflect or scatter from the boundary between the materials. This means that a solid object in air or in a vacuum , or a significant change in atomic density between the object and what is surrounding it, will usually scatter radar (radio) waves from its surface. This is particularly true for electrically conductive materials such as metal and carbon fibre, making radar well-suited to

1053-593: A division of Sony Entertainment 's Sony Pictures , which is one of the "Big Five" film studios and a subsidiary of the multinational conglomerate Sony Group Corporation . On June 19, 1918, brothers Jack and Harry Cohn and their business partner Joe Brandt founded the studio as Cohn-Brandt-Cohn (CBC) Film Sales Corporation . It adopted the Columbia Pictures name on January 10, 1924 (operating as Columbia Pictures Corporation until December 23, 1968) went public two years later and eventually began to use

1170-508: A financial stake in Columbia Pictures Industries and Alan Hirschfield was appointed CEO, succeeding Leo Jaffe who became chairman. Stanley Schneider, son of Abe Schneider (who became honorary chairman before leaving the board in 1975) was replaced as head of the Columbia Pictures studio by David Begelman , who reported to Hirschfield. Some years later Begelman was involved in a check-forging scandal that badly hurt

1287-540: A full radar system, that he called a telemobiloscope . It operated on a 50 cm wavelength and the pulsed radar signal was created via a spark-gap. His system already used the classic antenna setup of horn antenna with parabolic reflector and was presented to German military officials in practical tests in Cologne and Rotterdam harbour but was rejected. In 1915, Robert Watson-Watt used radio technology to provide advance warning of thunderstorms to airmen and during

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1404-413: A healthier balance-sheet (due in large part to box office hits like Kramer vs. Kramer , Stir Crazy , The Blue Lagoon , and Stripes ) Columbia was bought by beverage company The Coca-Cola Company on June 22, 1982, for $ 750 million. Studio head Frank Price mixed big hits like Tootsie , Gandhi , The Karate Kid , The Big Chill , and Ghostbusters with many costly flops. To share

1521-538: A live-action feature. Columbia was the last major studio to employ the expensive color process. Columbia's first Technicolor feature was the western The Desperadoes , starring Randolph Scott and Glenn Ford . Cohn quickly used Technicolor again for Cover Girl , a Hayworth vehicle that instantly was a smash hit, released in 1944, and for the fanciful biography of Frédéric Chopin , A Song to Remember , with Cornel Wilde , released in 1945. Another biopic, 1946's The Jolson Story with Larry Parks and Evelyn Keyes ,

1638-520: A new management team was brought in. In 1972, Columbia and Warner Bros. formed a partnership called The Burbank Studios, in which both companies shared the Warner studio lot in Burbank . In 1971, Columbia Pictures established sheet music publisher Columbia Pictures Publications, with vice president and general manager Frank J. Hackinson , who later became the president. In 1973, Allen & Co took

1755-749: A physics instructor at the Imperial Russian Navy school in Kronstadt , developed an apparatus using a coherer tube for detecting distant lightning strikes. The next year, he added a spark-gap transmitter . In 1897, while testing this equipment for communicating between two ships in the Baltic Sea , he took note of an interference beat caused by the passage of a third vessel. In his report, Popov wrote that this phenomenon might be used for detecting objects, but he did nothing more with this observation. The German inventor Christian Hülsmeyer

1872-498: A proposal for further intensive research on radio-echo signals from moving targets to take place at NRL, where Taylor and Young were based at the time. Similarly, in the UK, L. S. Alder took out a secret provisional patent for Naval radar in 1928. W.A.S. Butement and P. E. Pollard developed a breadboard test unit, operating at 50 cm (600 MHz) and using pulsed modulation which gave successful laboratory results. In January 1931,

1989-732: A pulsed system, and the first such elementary apparatus was demonstrated in December 1934 by the American Robert M. Page , working at the Naval Research Laboratory . The following year, the United States Army successfully tested a primitive surface-to-surface radar to aim coastal battery searchlights at night. This design was followed by a pulsed system demonstrated in May 1935 by Rudolf Kühnhold and

2106-685: A reorganization of the various Columbia Pictures legacy labels (Colpix, Colgems , and Bell), Davis introduced Columbia Pictures' new record division, Arista Records , in November 1974, with Davis himself owning 20% of the new venture. Columbia maintained control of the label until 1979, when it was sold to Ariola Records . In addition, Columbia sold its music publishing business (Columbia-Screen Gems) to EMI in August 1976 for $ 15 million. Both would later be reunited with Columbia Pictures under Sony ownership. In December 1976, Columbia Pictures acquired

2223-442: A rescue. For similar reasons, objects intended to avoid detection will not have inside corners or surfaces and edges perpendicular to likely detection directions, which leads to "odd" looking stealth aircraft . These precautions do not totally eliminate reflection because of diffraction , especially at longer wavelengths. Half wavelength long wires or strips of conducting material, such as chaff , are very reflective but do not direct

2340-677: A system might do, Wilkins recalled the earlier report about aircraft causing radio interference. This revelation led to the Daventry Experiment of 26 February 1935, using a powerful BBC shortwave transmitter as the source and their GPO receiver setup in a field while a bomber flew around the site. When the plane was clearly detected, Hugh Dowding , the Air Member for Supply and Research , was very impressed with their system's potential and funds were immediately provided for further operational development. Watson-Watt's team patented

2457-429: A terrible reputation that isn't entirely deserved – to be sure, producer Sam Katzman opted for the cheapest, worst-looking monster that one could imagine, a ridiculous-looking giant bird puppet that makes the movie seem ludicrous. But except for those moments when the title monster is on the screen, the movie isn't bad – so for the first 27 minutes, until it appears for the first time and evokes its first rounds of laughter,

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2574-522: A total of 34 years, one of the longest tenures of any studio chief ( Warner Bros. ' Jack L. Warner was head of production or CEO longer but did not become CEO until 1956). Even in an industry rife with nepotism, Columbia was particularly notorious for having a number of Harry and Jack's relatives in high positions. Humorist Robert Benchley called it the Pine Tree Studio, "because it has so many Cohns". Brandt eventually tired of dealing with

2691-514: A wide region and direct fighter aircraft towards targets. Marine radars are used to measure the bearing and distance of ships to prevent collision with other ships, to navigate, and to fix their position at sea when within range of shore or other fixed references such as islands, buoys, and lightships. In port or in harbour, vessel traffic service radar systems are used to monitor and regulate ship movements in busy waters. Meteorologists use radar to monitor precipitation and wind. It has become

2808-907: A writeup on the apparatus was entered in the Inventions Book maintained by the Royal Engineers. This is the first official record in Great Britain of the technology that was used in coastal defence and was incorporated into Chain Home as Chain Home (low) . Before the Second World War , researchers in the United Kingdom, France , Germany , Italy , Japan , the Netherlands , the Soviet Union , and

2925-608: Is a member of the Motion Picture Association (MPA), under Sony Pictures Entertainment, and is currently one of six live-action labels of Sony Pictures Motion Picture Group, the others being TriStar Pictures , Affirm Films , Screen Gems , Sony Pictures Classics , and Stage 6 Films . Columbia's most commercially successful franchises include Spider-Man , Jumanji , Bad Boys , Men in Black , The Karate Kid , Robert Langdon , and Ghostbusters , and

3042-452: Is a simplification for transmission in a vacuum without interference. The propagation factor accounts for the effects of multipath and shadowing and depends on the details of the environment. In a real-world situation, pathloss effects are also considered. Frequency shift is caused by motion that changes the number of wavelengths between the reflector and the radar. This can degrade or enhance radar performance depending upon how it affects

3159-451: Is as follows, where F D {\displaystyle F_{D}} is Doppler frequency, F T {\displaystyle F_{T}} is transmit frequency, V R {\displaystyle V_{R}} is radial velocity, and C {\displaystyle C} is the speed of light: Passive radar is applicable to electronic countermeasures and radio astronomy as follows: Only

3276-567: Is intended. Radar relies on its own transmissions rather than light from the Sun or the Moon, or from electromagnetic waves emitted by the target objects themselves, such as infrared radiation (heat). This process of directing artificial radio waves towards objects is called illumination , although radio waves are invisible to the human eye as well as optical cameras. If electromagnetic waves travelling through one material meet another material, having

3393-426: Is not just badly rendered, it is hilariously rendered, resembling nothing so much as Warner Bros. cartoon-character Beaky Buzzard . Once seen, you will never forget this awesomely silly creation". The Giant Claw has been mocked for the quality of its special effects. The menacing bird, in particular, is considered by many to be badly made, being a puppet with a very odd face. Film critic Leonard Maltin noted that

3510-417: Is the range. This yields: This shows that the received power declines as the fourth power of the range, which means that the received power from distant targets is relatively very small. Additional filtering and pulse integration modifies the radar equation slightly for pulse-Doppler radar performance , which can be used to increase detection range and reduce transmit power. The equation above with F = 1

3627-583: The Matt Helm series with Dean Martin . Columbia also produced a James Bond spoof, Casino Royale (1967), in conjunction with Charles K. Feldman , which held the adaptation rights for that novel . By 1966, the studio was suffering from box-office failures, and takeover rumors began surfacing. Columbia was surviving solely on the profits made from Screen Gems, whose holdings also included radio and television stations. On December 23, 1968, Screen Gems merged with Columbia Pictures Corporation and became part of

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3744-628: The Nyquist frequency , since the returned frequency otherwise cannot be distinguished from shifting of a harmonic frequency above or below, thus requiring: Or when substituting with F D {\displaystyle F_{D}} : As an example, a Doppler weather radar with a pulse rate of 2 kHz and transmit frequency of 1 GHz can reliably measure weather speed up to at most 150 m/s (340 mph), thus cannot reliably determine radial velocity of aircraft moving 1,000 m/s (2,200 mph). In all electromagnetic radiation ,

3861-717: The RAF's Pathfinder . The information provided by radar includes the bearing and range (and therefore position) of the object from the radar scanner. It is thus used in many different fields where the need for such positioning is crucial. The first use of radar was for military purposes: to locate air, ground and sea targets. This evolved in the civilian field into applications for aircraft, ships, and automobiles. In aviation , aircraft can be equipped with radar devices that warn of aircraft or other obstacles in or approaching their path, display weather information, and give accurate altitude readings. The first commercial device fitted to aircraft

3978-1277: The United Kingdom , which allowed the creation of relatively small systems with sub-meter resolution. The term RADAR was coined in 1940 by the United States Navy as an acronym for "radio detection and ranging". The term radar has since entered English and other languages as an anacronym , a common noun, losing all capitalization . The modern uses of radar are highly diverse, including air and terrestrial traffic control, radar astronomy , air-defense systems , anti-missile systems , marine radars to locate landmarks and other ships, aircraft anti-collision systems, ocean surveillance systems, outer space surveillance and rendezvous systems, meteorological precipitation monitoring, radar remote sensing , altimetry and flight control systems , guided missile target locating systems, self-driving cars , and ground-penetrating radar for geological observations. Modern high tech radar systems use digital signal processing and machine learning and are capable of extracting useful information from very high noise levels. Other systems which are similar to radar make use of other parts of

4095-583: The United States Department of Justice filed an antitrust suit against Kerkorian to block him from holding a stake in Columbia while controlling MGM. On February 19, 1979, Columbia Pictures Television acquired TOY Productions; the production company founded by Bud Yorkin and writers Saul Turteltaub and Bernie Orenstein in 1976. In May, Kerkorian acquired an additional 214,000 shares in Columbia, raising his stake to 25%. On August 2,

4212-440: The electromagnetic spectrum . One example is lidar , which uses predominantly infrared light from lasers rather than radio waves. With the emergence of driverless vehicles, radar is expected to assist the automated platform to monitor its environment, thus preventing unwanted incidents. As early as 1886, German physicist Heinrich Hertz showed that radio waves could be reflected from solid objects. In 1895, Alexander Popov ,

4329-407: The reflective surfaces . A corner reflector consists of three flat surfaces meeting like the inside corner of a cube. The structure will reflect waves entering its opening directly back to the source. They are commonly used as radar reflectors to make otherwise difficult-to-detect objects easier to detect. Corner reflectors on boats, for example, make them more detectable to avoid collision or during

4446-534: The "new boy" Arnold Frederic Wilkins to conduct an extensive review of available shortwave units. Wilkins would select a General Post Office model after noting its manual's description of a "fading" effect (the common term for interference at the time) when aircraft flew overhead. By placing a transmitter and receiver on opposite sides of the Potomac River in 1922, U.S. Navy researchers A. Hoyt Taylor and Leo C. Young discovered that ships passing through

4563-413: The 1920s went on to lead the U.K. research establishment to make many advances using radio techniques, including the probing of the ionosphere and the detection of lightning at long distances. Through his lightning experiments, Watson-Watt became an expert on the use of radio direction finding before turning his inquiry to shortwave transmission. Requiring a suitable receiver for such studies, he told

4680-484: The 1930s, Columbia signed Jean Arthur to a long-term contract, and after The Whole Town's Talking (1935), Arthur became a major comedy star. Ann Sothern 's career was launched when Columbia signed her to a contract in 1936. Cary Grant signed a contract in 1937 and soon after it was altered to a non-exclusive contract shared with RKO . Many theaters relied on westerns to attract big weekend audiences, and Columbia always recognized this market. Its first cowboy star

4797-473: The 1930s, Columbia's major contract stars were Jean Arthur and Cary Grant . In the 1940s, Rita Hayworth became the studio's premier star and propelled their fortunes into the late 1950s. Rosalind Russell , Glenn Ford and William Holden also became major stars at the studio. It is one of the leading film studios in the world, and was one of the so-called " Little Three " among the eight major film studios of Hollywood 's Golden Age . Today, it has become

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4914-487: The 1934 Oscars, put Columbia on the map. Until then, Columbia's business had depended on theater owners willing to take its films, since it did not have a theater network of its own. Other Capra-directed hits followed, including the original version of Lost Horizon (1937), with Ronald Colman , and Mr. Smith Goes to Washington (1939), which made James Stewart a major star. In 1933, Columbia hired Robert Kalloch to be its chief fashion and women's costume designer. He

5031-539: The Cohn brothers, and in 1932 sold his one-third stake to Jack and Harry Cohn, who took over from him as president. Columbia's product line consisted mostly of moderately budgeted features and short subjects including comedies, sports films, various serials, and cartoons. Columbia gradually moved into the production of higher-budget fare, eventually joining the second tier of Hollywood studios along with United Artists and Universal . Like United Artists and Universal, Columbia

5148-595: The Magician (1939), The Shadow (1940), Terry and the Pirates (1940), Captain Midnight (1942), The Phantom (1943), Batman (1943), and the especially successful Superman (1948), among many others. Columbia also produced musical shorts, sports reels (usually narrated by sportscaster Bill Stern ), and travelogues. Its " Screen Snapshots " series, showing behind-the-scenes footage of Hollywood stars,

5265-487: The President of Academy of Motion Picture Arts and Sciences in 1959, until his death a year later. Columbia could not afford to keep a huge roster of contract stars, so Jack Cohn usually borrowed them from other studios. At Metro-Goldwyn-Mayer , the industry's most prestigious studio, Columbia was nicknamed "Siberia", as Louis B. Mayer would use the loan-out to Columbia as a way to punish his less-obedient signings. In

5382-589: The Sea , and Mothra . In 2021, it was released on Blu-ray by Arrow Films as part of the limited edition Cold War Creatures: Four Films from Sam Katzman set. The other films included were Creature with the Atom Brain , The Werewolf , and The Zombies of Mora Tau . Radar Radar is a system that uses radio waves to determine the distance ( ranging ), direction ( azimuth and elevation angles ), and radial velocity of objects relative to

5499-515: The Stooges, Keaton, Charley Chase , Shemp Howard , Joe Besser , and Joe DeRita subjects have been released to home video. Columbia incorporated animation into its studio in 1929, distributing Krazy Kat cartoons, taking over from Paramount . The following year, Columbia took over distribution of the Mickey Mouse series from Celebrity Productions until 1932. In 1933, The Mintz studio

5616-782: The UPA deal was terminated, Columbia distributed the Hanna-Barbera cartoons, including Loopy De Loop from 1959 to 1965, which was Columbia's final theatrical cartoon series. In 1967, the Hanna-Barbera deal expired and was not renewed. According to Bob Thomas' book King Cohn , studio chief Harry Cohn always placed a high priority on serials. Beginning in 1937, Columbia entered the lucrative serial market and kept making these weekly episodic adventures until 1956, after other studios had discontinued them. The most famous Columbia serials are based on comic-strip or radio characters: Mandrake

5733-787: The United States, independently and in great secrecy, developed technologies that led to the modern version of radar. Australia, Canada, New Zealand, and South Africa followed prewar Great Britain's radar development, Hungary and Sweden generated its radar technology during the war. In France in 1934, following systematic studies on the split-anode magnetron , the research branch of the Compagnie générale de la télégraphie sans fil (CSF) headed by Maurice Ponte with Henri Gutton, Sylvain Berline and M. Hugon, began developing an obstacle-locating radio apparatus, aspects of which were installed on

5850-551: The arcade game company D. Gottlieb & Co. for $ 50 million. In 1978, Begelman was suspended for having embezzled money from Columbia. Hirschfield was forced out for his refusal to reinstate him. Begelman later resigned and was replaced by Daniel Melnick in June 1978. Fay Vincent was hired to replace Hirschfield. Frank Price became president of production in 1978. In March 1979, he would become president of Columbia Pictures, succeeding Melnick. During Price's tenure he

5967-486: The arrest of Oshchepkov and his subsequent gulag sentence. In total, only 607 Redut stations were produced during the war. The first Russian airborne radar, Gneiss-2 , entered into service in June 1943 on Pe-2 dive bombers. More than 230 Gneiss-2 stations were produced by the end of 1944. The French and Soviet systems, however, featured continuous-wave operation that did not provide the full performance ultimately synonymous with modern radar systems. Full radar evolved as

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6084-479: The beam path caused the received signal to fade in and out. Taylor submitted a report, suggesting that this phenomenon might be used to detect the presence of ships in low visibility, but the Navy did not immediately continue the work. Eight years later, Lawrence A. Hyland at the Naval Research Laboratory (NRL) observed similar fading effects from passing aircraft; this revelation led to a patent application as well as

6201-423: The budgets of his films, and the studio got the maximum use out of costly sets, costumes, and props by reusing them in other films. Many of Columbia's low-budget "B" pictures and short subjects have an expensive look, thanks to Columbia's efficient recycling policy. Cohn was reluctant to spend lavish sums on even his most important pictures, and it was not until 1943 that he agreed to use three-strip Technicolor in

6318-550: The company as an office boy out of high school and become a director in 1929, rising through the financial side of the business. In 1963, Columbia acquired music publisher Aldon Music . By the late 1960s, Columbia had an ambiguous identity, offering old-fashioned fare such as A Man for All Seasons and Oliver! along with the more contemporary Easy Rider and The Monkees . After turning down releasing Albert R. Broccoli 's Eon Productions James Bond films, Columbia hired Broccoli's former partner Irving Allen to produce

6435-770: The company's shows until 1967, when Hanna-Barbera was sold to Taft Broadcasting . In 1960, the animation studio became a publicly traded company under the name Screen Gems, Inc., when Columbia spun off an 18% stake. By 1950, Columbia had discontinued most of its popular series films ( Boston Blackie , Blondie , The Lone Wolf , The Crime Doctor , Rusty , etc.) Only Jungle Jim , launched by producer Sam Katzman in 1949, kept going through 1955. Katzman contributed greatly to Columbia's success by producing dozens of topical feature films, including crime dramas , science-fiction stories, and rock'n'roll musicals. Columbia kept making serials until 1956 and two-reel comedies until 1957, after other studios had abandoned these mediums. As

6552-613: The company. Brandt was president of CBC Film Sales, handling sales, marketing and distribution from New York along with Jack Cohn, while Harry Cohn ran production in Hollywood. The studio's early productions were low-budget short subjects: Screen Snapshots , the Hallroom Boys (the vaudeville duo of Edward Flanagan and Neely Edwards ), and the Charlie Chaplin -imitator Billy West . The start-up CBC leased space in

6669-408: The detection of aircraft and ships. Radar absorbing material , containing resistive and sometimes magnetic substances, is used on military vehicles to reduce radar reflection . This is the radio equivalent of painting something a dark colour so that it cannot be seen by the eye at night. Radar waves scatter in a variety of ways depending on the size (wavelength) of the radio wave and the shape of

6786-476: The detection process. As an example, moving target indication can interact with Doppler to produce signal cancellation at certain radial velocities, which degrades performance. Sea-based radar systems, semi-active radar homing , active radar homing , weather radar , military aircraft, and radar astronomy rely on the Doppler effect to enhance performance. This produces information about target velocity during

6903-411: The detection process. This also allows small objects to be detected in an environment containing much larger nearby slow moving objects. Doppler shift depends upon whether the radar configuration is active or passive. Active radar transmits a signal that is reflected back to the receiver. Passive radar depends upon the object sending a signal to the receiver. The Doppler frequency shift for active radar

7020-626: The device in patent GB593017. Development of radar greatly expanded on 1 September 1936, when Watson-Watt became superintendent of a new establishment under the British Air Ministry , Bawdsey Research Station located in Bawdsey Manor , near Felixstowe, Suffolk. Work there resulted in the design and installation of aircraft detection and tracking stations called " Chain Home " along the East and South coasts of England in time for

7137-482: The early 1980s, Columbia and Tri-Star Pictures set up a film partnership with Delphi Film Associates and acquired an interest in various film releases. In 1984, Delphi Film Associates III acquired an interest in the Tri-Star and Columbia film slate of 1984, which would make a $ 60 million offering in the financing of film production. Also that year, Columbia Pictures had bought out the rights to Hardbodies , which

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7254-538: The electric field is perpendicular to the direction of propagation, and the electric field direction is the polarization of the wave. For a transmitted radar signal, the polarization can be controlled to yield different effects. Radars use horizontal, vertical, linear, and circular polarization to detect different types of reflections. For example, circular polarization is used to minimize the interference caused by rain. Linear polarization returns usually indicate metal surfaces. Random polarization returns usually indicate

7371-473: The entire area in front of it, and then used one of Watson-Watt's own radio direction finders to determine the direction of the returned echoes. This fact meant CH transmitters had to be much more powerful and have better antennas than competing systems but allowed its rapid introduction using existing technologies. A key development was the cavity magnetron in the UK, which allowed the creation of relatively small systems with sub-meter resolution. Britain shared

7488-406: The film disappointed for those reasons, "(a) lack of decent special effects ruins the running battle between colossal bird and fighter jets. Big bird is laughable". TV Guide panned the film, awarding it a score of 1 out of 4, criticizing the film's monster as "preposterous-looking". Not all reviews of the film were negative. Allmovie gave the film a positive review, stating, "The Giant Claw has

7605-535: The film on DVD as part of the two-disc, four-film set, Icons of Horror Collection: Sam Katzman , along with three other films produced by Katzman: Creature with the Atom Brain (1955), The Werewolf (1956) and Zombies of Mora Tau (1957). On February 25, 2014, Mill Creek Entertainment (under license from Sony Pictures) included the film on the Sci-Fi Creature Classics DVD alongside 20 Million Miles to Earth , It Came from Beneath

7722-410: The film's premiere. Morrow himself first saw the film in his hometown, and hearing the audience laugh every time the monster appeared on screen, he left the theater early, embarrassed that anyone there might recognize him; he allegedly went home and began drinking. In May 1957, Sam Katzman stated in an interview with Variety , that his films at the time had cost between $ 250,000 to $ 500,000. Despite

7839-466: The firm GEMA  [ de ] in Germany and then another in June 1935 by an Air Ministry team led by Robert Watson-Watt in Great Britain. In 1935, Watson-Watt was asked to judge recent reports of a German radio-based death ray and turned the request over to Wilkins. Wilkins returned a set of calculations demonstrating the system was basically impossible. When Watson-Watt then asked what such

7956-546: The gigantic bird attacks both the Empire State Building and United Nations building . It is defeated by a special type of exotic atom , muonic atoms, deployed from the tail gun position of a B-25 bomber aircraft, which successfully collapses the creature's antimatter shield and allows missiles to hit and kill the monster. The giant bird plummets into the Atlantic Ocean outside New York City , and

8073-459: The gigantic bird, "as big as a battleship " and purported to come from an antimatter galaxy, is responsible for all the incidents. MacAfee, Caldwell, Dr. Karol Noymann (Edgar Barrier), General Considine ( Morris Ankrum ), and General Van Buskirk ( Robert Shayne ) work feverishly to develop a way to defeat the seemingly invincible creature. The climactic showdown takes place in Manhattan , when

8190-418: The image of Columbia , the female personification of the United States, as its logo. In its early years, Columbia was a minor player in Hollywood, but began to grow in the late 1920s, spurred by a successful association with director Frank Capra . With Capra and others such as the most successful two reel comedy series, The Three Stooges , Columbia became one of the primary homes of the screwball comedy . In

8307-426: The increasing cost of film production, Coke brought in two outside investors whose earlier efforts in Hollywood had come to nothing. In 1982, Columbia, Time Inc. 's HBO and CBS announced, as a joint venture, "Nova Pictures"; this enterprise was to be renamed Tri-Star Pictures . In 1983, Price left Columbia Pictures after a dispute with Coca-Cola and went back to Universal. He was replaced by Guy McElwaine . In

8424-446: The larger studios declined in the 1950s, Columbia's position improved. This was largely because it did not suffer from the massive loss of income that the other major studios suffered from the loss of their theaters (well over 90 percent, in some cases). Columbia continued to produce 40-plus pictures a year, offering productions that often broke ground and kept audiences coming to theaters. Some of its significant films from this era include

8541-541: The largest studios. The studio soon replaced RKO on the list of the "Big Five" studios. In 1946, Columbia dropped the Screen Gems brand from its cartoon line, but retained the Screen Gems name for various ancillary activities, including a 16 mm film-rental agency and a TV-commercial production company. On November 8, 1948, Columbia adopted the Screen Gems name for its television production subsidiary when

8658-533: The last sight of it is a claw sinking beneath the ocean. According to Richard Harland Smith of Turner Classic Movies , the inspiration for the story may have been taken from media reports about scientific discoveries in the field of particle physics, dealing with matter and antimatter. Other influences included the Japanese film Rodan (1956), and the Samuel Hopkins Adams story "Grandfather and

8775-488: The mythical creature that would be the showpiece of the production. The result, however, was a poorly made " marionette ." The puppet's construction was so underwhelming that a common misconception stating it was made in Mexico City for only $ 50 became very popular, but no credible sources support this assertion. Morrow later confessed in an interview that no one in the film knew what the titular monster looked like until

8892-637: The newly formed Columbia Pictures Industries, Inc. for $ 24.5 million. Schneider was chairman of the holding company and Leo Jaffe president. Following the merger, in March 1969, CPI purchased Bell Records for $ 3.5 million (mainly in CPI stock), retaining Larry Uttal as label president. Nearly bankrupt by the early 1970s, the studio was saved via a radical overhaul: the Gower Street Studios (now called " Sunset Gower Studios ") were sold and

9009-508: The ocean liner Normandie in 1935. During the same period, Soviet military engineer P.K. Oshchepkov , in collaboration with the Leningrad Electrotechnical Institute , produced an experimental apparatus, RAPID, capable of detecting an aircraft within 3 km of a receiver. The Soviets produced their first mass production radars RUS-1 and RUS-2 Redut in 1939 but further development was slowed following

9126-531: The outbreak of World War II in 1939. This system provided the vital advance information that helped the Royal Air Force win the Battle of Britain ; without it, significant numbers of fighter aircraft, which Great Britain did not have available, would always have needed to be in the air to respond quickly. The radar formed part of the " Dowding system " for collecting reports of enemy aircraft and coordinating

9243-505: The picture is working just fine within the confines of its budget, script, and cast". Allmovie also complimented Morrow's performance as "the best thing in the picture". The Giant Claw had been a staple of the bootleg video market, with only two official VHS releases (one in the United States by Goodtimes Home Video and the other by Screamtime in the United Kingdom ). In October 2007, Sony Pictures Home Entertainment released

9360-706: The primary tool for short-term weather forecasting and watching for severe weather such as thunderstorms , tornadoes , winter storms , precipitation types, etc. Geologists use specialized ground-penetrating radars to map the composition of Earth's crust . Police forces use radar guns to monitor vehicle speeds on the roads. Automotive radars are used for adaptive cruise control and emergency breaking on vehicles by ignoring stationary roadside objects that could cause incorrect brake application and instead measuring moving objects to prevent collision with other vehicles. As part of Intelligent Transport Systems , fixed-position stopped vehicle detection (SVD) radars are mounted on

9477-418: The production utilizing Columbia ’s B-unit, they had a much larger budget than other contemporaries.   Critical reception was generally negative, with film writer and historian Bill Warren commenting, "This would have been an ordinarily bad movie of its type, with a good performance by Jeff Morrow, if the special effects had been industry standard for the time. That, however, is not what happened. The Claw

9594-644: The productions of the English studio Warwick Films (by producers Irving Allen and Albert R. Broccoli ), as well as many films by producer Carl Foreman , who resided in England. Columbia distributed some films made by Hammer , which was also based in England. In December 1956, Jack Cohn, co-founder and executive vice-president, died. In 1958, Columbia established its own record label, Colpix Records , initially run by Jonie Taps, who headed Columbia's music department, and later Paul Wexler and Lester Sill . Colpix

9711-432: The radial component of the velocity is relevant. When the reflector is moving at right angle to the radar beam, it has no relative velocity. Objects moving parallel to the radar beam produce the maximum Doppler frequency shift. When the transmit frequency ( F T {\displaystyle F_{T}} ) is pulsed, using a pulse repeat frequency of F R {\displaystyle F_{R}} ,

9828-481: The reincarnation of Rastar Pictures, which was acquired by Columbia Pictures in February 1980. Columbia Pictures also reorganized its music and record divisions. Clive Davis was hired as a record and music consultant by Columbia Pictures in 1974 and later became temporary president of Bell Records . Davis's real goal was to revitalize Columbia Pictures' music division. With a $ 10 million investment by CPI, and

9945-600: The remaining 19% in 1985. Around this time, Columbia put Steven Spielberg 's proposed follow-up to Close Encounters of the Third Kind , Night Skies , into turnaround . The project eventually became the highest-grossing film of the time, E.T. the Extra-Terrestrial . Columbia received a share of the profits for its involvement in the development. On May 17, 1982, Columbia Pictures acquired Spelling-Goldberg Productions for over $ 40 million. With

10062-414: The response. Given all required funding and development support, the team produced working radar systems in 1935 and began deployment. By 1936, the first five Chain Home (CH) systems were operational and by 1940 stretched across the entire UK including Northern Ireland. Even by standards of the era, CH was crude; instead of broadcasting and receiving from an aimed antenna, CH broadcast a signal floodlighting

10179-410: The resulting frequency spectrum will contain harmonic frequencies above and below F T {\displaystyle F_{T}} with a distance of F R {\displaystyle F_{R}} . As a result, the Doppler measurement is only non-ambiguous if the Doppler frequency shift is less than half of F R {\displaystyle F_{R}} , called

10296-427: The roadside to detect stranded vehicles, obstructions and debris by inverting the automotive radar approach and ignoring moving objects. Smaller radar systems are used to detect human movement . Examples are breathing pattern detection for sleep monitoring and hand and finger gesture detection for computer interaction. Automatic door opening, light activation and intruder sensing are also common. A radar system has

10413-407: The scattered energy back toward the source. The extent to which an object reflects or scatters radio waves is called its radar cross-section . The power P r returning to the receiving antenna is given by the equation: where In the common case where the transmitter and the receiver are at the same location, R t = R r and the term R t ² R r ² can be replaced by R , where R

10530-490: The signal is attenuated by the medium the beam crosses, and the beam disperses. The maximum range of conventional radar can be limited by a number of factors: Columbia Pictures Columbia Pictures Industries, Inc. , commonly known as Columbia Pictures , is an American film production and distribution company that is the flagship unit of the Sony Pictures Motion Picture Group ,

10647-416: The site. It is a radiodetermination method used to detect and track aircraft , ships , spacecraft , guided missiles , motor vehicles , map weather formations , and terrain . A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna , a receiving antenna (often the same antenna is used for transmitting and receiving) and

10764-1086: The studio acquired Pioneer Telefilms, a television commercial company founded by Jack Cohn's son, Ralph. Pioneer had been founded in 1947, and was later reorganized as Screen Gems. The studio opened its doors for business in New York on April 15, 1949. By 1951, Screen Gems became a full-fledged television studio and became a major producer of sitcoms for TV, beginning with Father Knows Best and followed by The Donna Reed Show , The Partridge Family , Bewitched , I Dream of Jeannie , and The Monkees . On July 1, 1956, studio veteran Irving Briskin stepped down as manager of Columbia Pictures and formed his own production company Briskin Productions, Inc. to release series through Screen Gems and supervise all of its productions. On December 10, Screen Gems expanded into television syndication by acquiring Hygo Television Films (a.k.a. "Serials Inc.") and its affiliated company United Television Films, Inc. Hygo Television Films

10881-531: The studio signed the Three Stooges in 1934. Rejected by MGM (which kept straight-man Ted Healy but let the Stooges go), the Stooges made 190 shorts for Columbia between 1934 and 1957. Columbia's short-subject department employed many famous comedians, including Buster Keaton , Charley Chase , Harry Langdon , Andy Clyde , and Hugh Herbert . Almost 400 of Columbia's 529 two-reel comedies were released to television between 1958 and 1961; to date, all of

10998-442: The studio's highest-grossing film worldwide is Spider-Man: No Way Home with box-office of $ 1.92 billion. The studio was founded on June 19, 1918, as Cohn-Brandt-Cohn (CBC) Film Sales by brothers Jack and Harry Cohn and Jack's best friend Joe Brandt , and released its first feature film More to Be Pitied Than Scorned on August 20, 1922. The film, with a budget of $ 20,000, was a success, bringing in $ 130,000 in revenue for

11115-604: The studio's adaptation of the controversial James Jones novel From Here to Eternity (1953), On the Waterfront (1954), and The Bridge on the River Kwai (1957) with William Holden and Alec Guinness , all of which won the Best Picture Oscar . Another significant film of the studio was the free adaptation of George Orwell 's dystopian novel Nineteen Eighty-Four (1956). Columbia also released

11232-448: The studio's image. On May 6, 1974, Columbia retired the Screen Gems name from television, renaming its television division to the name of Columbia Pictures Television . The name was suggested by David Gerber , who was then president of Columbia's television division. The same year, Columbia Pictures acquired Rastar Pictures , which included Rastar Productions, Rastar Features, and Rastar Television. Ray Stark then founded Rastar Films,

11349-491: The target. If the wavelength is much shorter than the target's size, the wave will bounce off in a way similar to the way light is reflected by a mirror . If the wavelength is much longer than the size of the target, the target may not be visible because of poor reflection. Low-frequency radar technology is dependent on resonances for detection, but not identification, of targets. This is described by Rayleigh scattering , an effect that creates Earth's blue sky and red sunsets. When

11466-530: The technology with the U.S. during the 1940 Tizard Mission . In April 1940, Popular Science showed an example of a radar unit using the Watson-Watt patent in an article on air defence. Also, in late 1941 Popular Mechanics had an article in which a U.S. scientist speculated about the British early warning system on the English east coast and came close to what it was and how it worked. Watson-Watt

11583-879: The transmitter. The reflected radar signals captured by the receiving antenna are usually very weak. They can be strengthened by electronic amplifiers . More sophisticated methods of signal processing are also used in order to recover useful radar signals. The weak absorption of radio waves by the medium through which they pass is what enables radar sets to detect objects at relatively long ranges—ranges at which other electromagnetic wavelengths, such as visible light , infrared light , and ultraviolet light , are too strongly attenuated. Weather phenomena, such as fog, clouds, rain, falling snow, and sleet, that block visible light are usually transparent to radio waves. Certain radio frequencies that are absorbed or scattered by water vapour, raindrops, or atmospheric gases (especially oxygen) are avoided when designing radars, except when their detection

11700-567: The trial began; on August 14, the court ruled in favor for Kerkorian. In 1979, Columbia agreed with Time-Life Video to release 20 titles on videocassette . On September 30, 1980, Kerkorian sued Columbia for ignoring shareholders' interest and violating an agreement with him. Columbia later accused him on October 2, of scheming with Nelson Bunker Hunt to gain control of Columbia. In 1981, Kerkorian sold his 25% stake in Columbia back to CPI. Columbia Pictures later acquired 81% of The Walter Reade Organization , which owned 11 theaters; it purchased

11817-487: The two length scales are comparable, there may be resonances . Early radars used very long wavelengths that were larger than the targets and thus received a vague signal, whereas many modern systems use shorter wavelengths (a few centimetres or less) that can image objects as small as a loaf of bread. Short radio waves reflect from curves and corners in a way similar to glint from a rounded piece of glass. The most reflective targets for short wavelengths have 90° angles between

11934-472: The use of radar altimeters possible in certain cases. The radar signals that are reflected back towards the radar receiver are the desirable ones that make radar detection work. If the object is moving either toward or away from the transmitter, there will be a slight change in the frequency of the radio waves due to the Doppler effect . Radar receivers are usually, but not always, in the same location as

12051-684: The working title Mark of the Claw , principal photography took place at Griffith Park , subbing for the New York-Canada border, with interiors filmed at the Columbia Annex near Monogram Studios from February 1 to 20, 1957. Katzman originally planned to utilize stop motion effects by Ray Harryhausen , but due to budget constraints he instead hired a low-budget special effects studio in Mexico City , Mexico , to create

12168-702: The world's third largest major film studio. The company was also primarily responsible for distributing Disney 's Silly Symphony film series as well as the Mickey Mouse cartoon series from 1929 to 1932. The studio is presently headquartered at the Irving Thalberg Building on the former Metro-Goldwyn-Mayer (currently known as the Sony Pictures Studios ) lot in Culver City, California since 1990. Columbia Pictures

12285-493: Was Buck Jones , who signed with Columbia in 1930 for a fraction of his former big-studio salary. Over the next two decades Columbia released scores of outdoor adventures with Jones, Tim McCoy , Ken Maynard , Jack Luden , Bob Allen ( Robert (Tex) Allen ), Russell Hayden , Tex Ritter , Ken Curtis , and Gene Autry . Columbia's most popular cowboy was Charles Starrett , who signed with Columbia in 1935 and starred in 131 western features over 17 years. At Harry Cohn's insistence,

12402-608: Was a 1938 Bell Lab unit on some United Air Lines aircraft. Aircraft can land in fog at airports equipped with radar-assisted ground-controlled approach systems in which the plane's position is observed on precision approach radar screens by operators who thereby give radio landing instructions to the pilot, maintaining the aircraft on a defined approach path to the runway. Military fighter aircraft are usually fitted with air-to-air targeting radars, to detect and target enemy aircraft. In addition, larger specialized military aircraft carry powerful airborne radars to observe air traffic over

12519-760: Was a Columbia perennial that the studio had been releasing since the silent-movie days; producer-director Ralph Staub kept this series going through 1958. In the 1940s, propelled in part by the surge in audiences for their films during World War II , the studio also benefited from the popularity of its biggest star, Rita Hayworth . Columbia maintained a long list of contractees well into the 1950s; Glenn Ford , Penny Singleton , William Holden , Judy Holliday , The Three Stooges , Ann Miller , Evelyn Keyes , Ann Doran , Jack Lemmon , Cleo Moore , Barbara Hale , Adele Jergens , Larry Parks , Arthur Lake , Lucille Ball , Kerwin Mathews and Kim Novak . Harry Cohn monitored

12636-451: Was a horizontally integrated company. It controlled production and distribution; it did not own any theaters. Helping Columbia's climb was the arrival of an ambitious director, Frank Capra . Between 1927 and 1939, Capra constantly pushed Cohn for better material and bigger budgets. A string of hits he directed in the early and mid 1930s solidified Columbia's status as a major studio. In particular, It Happened One Night , which nearly swept

12753-435: Was active until 1966 when Columbia entered into a joint agreement with RCA Victor and discontinued Colpix in favor of its new label, Colgems Records . Shortly after closing their short subjects department, Columbia president Harry Cohn died of a heart attack in February 1958. His nephew Ralph Cohn died in 1959, ending almost four decades of family management. The new management was headed by Abe Schneider, who had joined

12870-508: Was founded in 1951 by Jerome Hyams, who also acquired United Television Films in 1955 that was founded by Archie Mayers. In 1957, two years before its parent company Columbia dropped UPA, Screen Gems entered a distribution deal with Hanna-Barbera Productions , which produced classic animated series such as The Flintstones , The Quick Draw McGraw Show , The Huckleberry Hound Show , The Yogi Bear Show , Jonny Quest , The Jetsons and Top Cat among others. Screen Gems distributed

12987-634: Was once premiered on The Playboy Channel . Columbia Pictures expanded its music publishing operations in the 1980s, acquiring Big 3 Publishing (the former sheet music operations of Robbins, Feist , and Miller ) from MGM/UA Communications Co. in 1983, Belwin-Mills Publishing from Simon & Schuster in 1985, and Al Gallico Music in 1987. On June 18, 1985, Columbia's parent acquired Norman Lear and Jerry Perenchio 's Embassy Communications, Inc. (including Embassy Pictures , Embassy Television, Tandem Productions , and Embassy Home Entertainment), mostly for its library of television series such as All in

13104-688: Was re-established under the Screen Gems brand; Columbia's leading cartoon series were Krazy Kat , Scrappy , The Fox and the Crow , and (very briefly) Li'l Abner . Screen Gems was the last major cartoon studio to produce black-and-white cartoons, producing them until 1946. That same year, Screen Gems shut down but had completed enough cartoons for the studio to release until 1949. In 1948, Columbia agreed to release animated shorts from United Productions of America ; these new shorts were more sophisticated than Columbia's older cartoons, and many won critical praise and industry awards. In 1957, two years before

13221-520: Was responsible for turning out 9 of the top 10 grossing films in Columbia's history. In the fall of 1978, Kirk Kerkorian , a Vegas casino mogul who also controlled Metro-Goldwyn-Mayer , acquired a 5.5% stake in Columbia Pictures. He then announced on November 20, that he intended to launch a tender offer to acquire another 20% for the studio. On December 14, a standstill agreement was reached with Columbia by promising not to go beyond 25% or seeking control for at least three years. On January 15, 1979,

13338-748: Was sent to the U.S. in 1941 to advise on air defense after Japan's attack on Pearl Harbor . Alfred Lee Loomis organized the secret MIT Radiation Laboratory at Massachusetts Institute of Technology , Cambridge, Massachusetts which developed microwave radar technology in the years 1941–45. Later, in 1943, Page greatly improved radar with the monopulse technique that was used for many years in most radar applications. The war precipitated research to find better resolution, more portability, and more features for radar, including small, lightweight sets to equip night fighters ( aircraft interception radar ) and maritime patrol aircraft ( air-to-surface-vessel radar ), and complementary navigation systems like Oboe used by

13455-528: Was started in black-and-white, but when Cohn saw how well the project was proceeding, he scrapped the footage and insisted on filming in Technicolor. In 1948, the United States v. Paramount Pictures, Inc. anti-trust decision forced Hollywood motion picture companies to divest themselves of the theater chains that they owned. Since Columbia did not own any theaters, it was now on equal terms with

13572-538: Was the first contract costume designer hired by the studio, and he established the studio's wardrobe department. Kalloch's employment, in turn, convinced leading actresses that Columbia Pictures intended to invest in their careers. In 1938, the addition of B. B. Kahane as vice president would produce Charles Vidor 's Those High Grey Walls (1939), and The Lady in Question (1940), the first joint film of Rita Hayworth and Glenn Ford . Kahane would later become

13689-463: Was the first to use radio waves to detect "the presence of distant metallic objects". In 1904, he demonstrated the feasibility of detecting a ship in dense fog, but not its distance from the transmitter. He obtained a patent for his detection device in April 1904 and later a patent for a related amendment for estimating the distance to the ship. He also obtained a British patent on 23 September 1904 for

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