Rosalyn Sussman Yalow (American medical physicist) was born on July 19, 1921

Rosalyn Sussman Yalow was an American medical physicist, and a co-winner of the 1977 Nobel Prize in Physiology or Medicine (together with Roger Guillemin and Andrew Schally) for development of the radioimmunoassay (RIA) technique. She was the second woman to be awarded the Nobel Prize Physiology or Medicine after Gerty Cori. Born in Manhattan to Simon and Clara (née Zipper) Sussman, she attended Walton High School. Knowing how to type, she won a part-time position as secretary to Dr. Rudolf Schoenheimer, a leading biochemist at Columbia University's College of Physicians and Surgeons. Not believing that any good graduate school would admit and provide financial support to a woman, she took a job as a secretary to Michael Heidelberger, another biochemist at Columbia, who hired her on the condition that she studied stenography.

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Aliens (the film) was released on July 18, 1986

Aliens is a 1986 science fiction action film directed by James Cameron and starring Sigourney Weaver, Carrie Henn, Michael Biehn, Lance Henriksen, William Hope, and Bill Paxton. A sequel to the 1979 film Alien, Aliens follows Weaver's character Ellen Ripley as she returns to the planet where her crew encountered the hostile Alien creature, this time accompanied by a unit of Colonial Marines. Aliens' action-adventure tone was in contrast to the horror motifs of the original Alien. Following the success of The Terminator (1984), which helped establish Cameron as a major action director, 20th Century Fox greenlit Aliens with a budget of approximately $18 million. It was filmed in England at Pinewood Studios and at a decommissioned power plant. Aliens grossed $86 million at the domestic box office during its 1986 theatrical release and $131 million internationally. The movie was nominated for seven Academy Awards, including a Best Actress nomination for Sigourney Weaver. It won in the categories of Sound Effects Editing and Visual Effects. It won eight Saturn Awards, including Best Science Fiction Film, Best Actress for Weaver and Best Direction for Cameron.

Cory Doctorow (Canadian-British blogger, journalist, and science fiction author) was born on July 17, 1971

Cory Efram Doctorow is a Canadian-British blogger, journalist, and science fiction author who serves as co-editor of the weblog Boing Boing. He is an activist in favour of liberalising copyright laws and a proponent of the Creative Commons organization, using some of their licences for his books. Some common themes of his work include digital rights management, file sharing, and "post-scarcity" economics. Doctorow began selling fiction when he was 17 years old and sold several stories followed by publication of his story "Craphound" during 1998. Down and Out in the Magic Kingdom, Doctorow's first novel, was published during January 2003, and was the first novel released under one of the Creative Commons licences, allowing readers to circulate the electronic edition as long as they neither made money from it nor used it to create derived works. The electronic edition was released simultaneously with the print edition. During March 2003, it was re-released with a different Creative Commons licence that allowed derivative works such as fan fiction, but still prohibited commercial usage. It was nominated for a Nebula Award, and won the Locus Award for Best First Novel during 2004. A semi-sequel short story named Truncat was published on Salon.com in August 2003. Doctorow's other novels have been released with Creative Commons licences that allow derived works and prohibit commercial usage, and he has used the model of making digital versions available, without charge, at the same time that print versions are published.

Billy Mitchell (electronic sports player) was born on July 16, 1965

Billy L. Mitchell is an eletronic sports player who is best known for recording high scores in classic video games from the Golden Age of Arcade Games. He has been claimed by some as the "greatest arcade-video-game player of all time". His achievements include the first perfect score in Pac-Man. He owns the "Rickey's World Famous Restaurant" chain, based in Hollywood, Florida. He uses the same brand to sell a line of hot sauces, "Rickey's World Famous Sauces". The 2007 documentary The King of Kong: A Fistful of Quarters tells the story of newcomer Steve Wiebe's attempt to surpass Billy Mitchell's high score at the game Donkey Kong, which Mitchell had set in 1982. On July 26, 2007, in celebration of the film's release and the 25th anniversary of Mitchell's first record-setting performance, Mitchell again played in public and retook the Donkey Kong record with a score of 1,050,200, though that score was surpassed on February 26, 2010 by Hank Chien, who was temporarily the record holder at Donkey Kong. However, Mitchell reclaimed his title once again on July 24, 2010. On September 20, 2010, Steve Wiebe once again took the title with a score of 1,064,500. As of February 27, 2011, Hank Chien re-took the record with a score of 1,090,400.

Jeff Jarvis (American journalist) was born on July 15, 1954

Jeff Jarvis is an American journalist. He is the former television critic for TV Guide and People magazine, creator of Entertainment Weekly, Sunday editor and associate publisher of the New York Daily News, and a columnist on the San Francisco Examiner. He is a co-host on This Week in Google along with Leo Laporte and Gina Trapani, a show on the TWiT Network which covers cloud computing and social networking. In 2009, Jarvis wrote a book called, "What Would Google Do?" In the book, he discusses how companies can become successful like Google, and talks about how Google, and other top websites, such as Facebook, Craigslist, Wikipedia, and Digg, have changed the business model. He gives advice on how companies can copy Google's success, and how other successful companies have already done so, such a Dell and Apple.

Gertrude Bell (English writer, traveller, political officer, administrator, and archaeologist) was born on July 14, 1868

Gertrude Margaret Lowthian Bell was an English writer, traveller, political officer, administrator, and archaeologist who explored, mapped, and became highly influential to British imperial policy-making due to her extensive travels in Greater Syria, Mesopotamia, Asia Minor, and Arabia. Along with T. E. Lawrence, Bell helped establish the Hashemite dynasties in what is today Jordan as well as in Iraq. She played a major role in establishing and helping administer the modern state of Iraq, utilizing her unique perspective from her travels and relations with tribal leaders throughout the Middle East. During her lifetime she was highly esteemed and trusted by British officials and given an immense amount of power for a woman at the time. She has also been described as "one of the few representatives of His Majesty's Government remembered by the Arabs with anything resembling affection".

Cameron Crowe (American film director, producer, and screenwriter) was born on July 13, 1957

Cameron Bruce Crowe is an American film director, producer, and screenwriter. Before moving into the film industry, Crowe was a contributing editor at Rolling Stone magazine, for which he still frequently writes. Crowe has made his mark with character-driven, personal films that have been generally hailed as refreshingly original and devoid of cynicism. Michael Walker in The New York Times called Crowe "something of a cinematic spokesman for the post-baby boom generation" because his first few films focused on that specific age group, first as high schoolers and then as young adults making their way in the world. Crowe's debut screenwriting effort, Fast Times at Ridgemont High, grew out of a book he wrote while posing for one year undercover as a student at Clairemont High School in San Diego, California, where he met Geraldine Edwards, who was a student there while he was visiting mutual friends in 1975. He later based part of his Penny Lane character on her in Almost Famous after discovering that she had been going backstage to Rock and Roll concerts.

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Ben Burtt (sound designer) was born on July 12, 1948

Benjamin "Ben" Burtt, Jr. is an American sound designer for the films Star Wars (1977), Invasion of the Body Snatchers (1978), Raiders of the Lost Ark (1981), E.T. the Extra-Terrestrial (1982), Indiana Jones and the Last Crusade (1989) and WALL-E (2008). He is also a film editor and director, screenwriter, and voice actor. He is most notable for creating many of the iconic sound effects heard in the Star Wars film franchise, including the "voice" of R2-D2, the lightsaber hum and the heavy-breathing sound of Darth Vader. Burtt was born in Jamesville, New York, and graduated with a major in physics from Allegheny College in Meadville, Pennsylvania. In 1970, he won the National Student Film Festival with a war film Yankee Squadron, reputedly after following exposure to classic aviation drama through making an amateur film at the Old Rhinebeck Aerodrome, a living aviation museum in Red Hook, New York, under guidance from its founder, Cole Palen. For his work on the special-effects film Genesis, Burtt won a scholarship to the University of Southern California in Los Angeles, California, where he earned a master's degree in film production.

The first game of the World Chess Championship (between Bobby Fischer and Boris Spassky) began on July 11, 1972

The World Chess Championship 1972 was a match between challenger Bobby Fischer of the United States and defending champion Boris Spassky of the Soviet Union for the World Chess Championship. The match took place in the Laugardalshöll arena in Reykjavík, Iceland and has been dubbed the Match of the Century. Fischer became the first American to be the official World Champion since Steinitz, the first Champion, became a naturalized American citizen in 1888. Fischer's win also ended 24 years of Soviet domination of the World Championship. The first game started on July 11, 1972. The last game began on August 31 and was adjourned after 40 moves. Spassky resigned the next day without resuming play. Fischer won the match 12½-8½, becoming the eleventh official World Champion.

Marc Andreessen (American entrepreneur, software engineer, and co-author of Mosaic) was born on July 10, 1971

Marc Lowell Andreesen is an American entrepreneur, venture capitalist, software engineer, and multi-millionaire best known as co-author of Mosaic, the first widely-used web browser, and co-founder of Netscape Communications Corporation. He founded and later sold the software company Opsware to Hewlett-Packard. He is also a co-founder of Ning, a company that provides a platform for social-networking websites. He sits on the board of directors of Facebook, eBay, and HP, among others. Andreessen is a frequent keynote speaker and guest at Silicon Valley conferences. He is one of only six inductees in the World Wide Web Hall of Fame announced at the first international conference on the World Wide Web in 1994. Andreessen was born in Cedar Falls, Iowa, and raised in New Lisbon, Wisconsin, the son of Patricia and Lowell Andreessen, who worked for a seed company. He received his bachelor's degree in computer science from the University of Illinois at Urbana-Champaign. As an undergraduate, he interned one summer at IBM in Austin, Texas, United States. He also worked at the university's National Center for Supercomputing Applications (NCSA), where he became familiar with Tim Berners-Lee's open standards for the World Wide Web. Andreessen and a full-time salaried co-worker Eric Bina worked on creating a user-friendly browser with integrated graphics that would work on a wide range of computers. The resulting code was the Mosaic web browser.

Tron was released in the United States on July 9, 1982

Tron is a 1982 American science fiction film written and directed by Steven Lisberger, and released by Walt Disney Pictures. It stars Jeff Bridges in a dual role as the protagonist Kevin Flynn and one of his programs, "Clu" (who would reappear 28 years later as the main antagonist in Tron: Legacy); Bruce Boxleitner in a dual role as security program Tron and Tron's "User", computer programmer Alan Bradley; Cindy Morgan in a dual role as program Yori and her "User", Dr. Lora Baines; the late Barnard Hughes in a dual role as the tower guardian Dumont and his "User", Dr. Walter Gibbs; Tony Stefano in a dual role as Ed Dillinger's secretary Peter and Sark's otherwise-nameless Lieutenant; and Dan Shor as Ram. David Warner plays all three main antagonists: the program Sark, his "User", Ed Dillinger, and the voice of the artificially intelligent Master Control Program. The movie also features cameo roles by Jackson Bostwick of Shazam! fame (as a guard program) and a pre-American Ninja Michael Dudikoff (who makes his acting debut as a video game-conscript).

Henri Cartan (French mathematician) was born on July 8, 1904

Henri Paul Cartan was a French mathematician with substantial contributions in algebraic topology. He was the son of the French mathematician Élie Cartan. Cartan studied at the Lycée Hoche in Versailles, then at the ENS, receiving his doctorate in mathematics. He taught at the University of Strasbourg from November 1931 until the outbreak of the Second World War, after which he held academic positions at a number of other French universities, spending the bulk of his working life in Paris. Cartan is known for work in algebraic topology, in particular on cohomology operations, the method of "killing homotopy groups", and group cohomology. His seminar in Paris in the years after 1945 covered ground on several complex variables, sheaf theory, spectral sequences and homological algebra, in a way that deeply influenced Jean-Pierre Serre, Armand Borel, Alexander Grothendieck and Frank Adams, amongst others of the leading lights of the younger generation. The number of his official students was small, but includes Adrien Douady, Roger Godement, Max Karoubi, Jean-Louis Koszul, Jean-Pierre Serre and René Thom.

Robert Heinlein (Science fiction writer) was born on July 7, 1907

Robert Anson Heinlein was an American science fiction writer. Often called "the dean of science fiction writers", he was one of the most influential and controversial authors of the genre. He set a high standard for science and engineering plausibility and helped to raise the genre's standards of literary quality. He was one of the first writers to break into mainstream, general magazines such as The Saturday Evening Post, in the late 1940s, with unvarnished science fiction. He was among the first authors of bestselling, novel-length science fiction in the modern, mass-market era. For many years, Heinlein, Isaac Asimov, and Arthur C. Clarke were known as the "Big Three" of science fiction. Heinlein was a notable writer of science-fiction short stories, and he was one of a group of writers who were groomed in their writing by John W. Campbell, Jr. the editor of Astounding magazine—though Heinlein himself denied that Campbell influenced his writing to any great degree.

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Brian Posehn (American actor, voice actor, musician, writer, and comedian) was born on July 6, 1966

Brian Edmund Posehn is an American actor, voice actor, musician, writer, and comedian, known for his roles as Jim Kuback on The WB's Mission Hill and Brian Spukowski on Comedy Central's The Sarah Silverman Program. In 2006, Posehn released his debut comedy album Live In: Nerd Rage. Posehn participated in the Comedy Lineup of the 2008 Bonnaroo Music and Arts Festival, which included Louis C.K., Janeane Garofalo and Zach Galifianakis. Posehn performed as part of the Rock N' Roll Comedy set with Jim Norton and Michelle Buteau. During his 2008 routine on Comedy Central Presents he referred to his Wikipedia article, which he supposedly vandalized. In 2010, Posehn released his second album Fart and Wiener Jokes. In 2011, Posehn agreed to perform at the Gathering of the Juggalos. Some of his fans criticized this decision as being "not metal". Posehn countered that "getting a paycheck is metal", and expressed respect towards the Juggalo fan culture, as well as the independent music success of Insane Clown Posse and Psychopathic Records.