A helmet is a form of protective gear worn on the head to protect it from injuries.

Ceremonial or symbolic helmets (e.g., English policeman's helmet) without protective function are sometimes used. The oldest known use of helmets was by Assyrian soldiers in 900BC, who wore thick leather or bronze helmets to protect the head from blunt object and sword blows and arrow strikes in combat. Soldiers still wear helmets, now often made from lightweight plastic materials.

In civilian life, helmets are used for recreational activities and sports (e.g., jockeys in horse racing, American football, ice hockey, cricket, baseball, and rock climbing); dangerous work activities (e.g., construction, mining, riot police); and transportation (e.g., Motorcycle helmets and bicycle helmets). Since the 1990s, most helmets are made from resin or plastic, which may be reinforced with fibers such as aramids.

All helmets attempt to protect the user's head by absorbing mechanical energy and protecting against penetration. Their structure and protective capacity are altered in high-energy impacts. Beside their energy-absorption capability, their volume and weight are also important issues, since higher volume and weight increase the injury risk for the user's head and neck. Anatomical helmets adapted to the inner head structure were invented by neurosurgeons at the end of the 20th century.

Jon Stewart (born Jonathan Stuart Leibowitz; November 28, 1962) is an American political satirist, writer, television host, actor, media critic and stand-up comedian. He is widely known as host of The Daily Show, a satirical news program that airs on Comedy Central.

Stewart started as a stand-up comedian, but branched into television as host of Short Attention Span Theater for Comedy Central. He went on to host his own show on MTV, called The Jon Stewart Show, and then hosted another show on MTV called You Wrote It, You Watch It. He has also had several film roles as an actor. Stewart became the host of The Daily Show on Comedy Central in early 1999. He is also a writer and co-executive-producer of the show. After Stewart joined, The Daily Show steadily gained popularity and critical acclaim, resulting in his sixteen Emmy Awards.

Stewart has gained acclaim as an acerbic, satirical critic of personality-driven media shows, in particular those of the US media networks such as CNN, Fox News Channel, and MSNBC. Critics say Stewart benefits from a double standard: he critiques other news shows from the safe, removed position of his "fake news" desk. Stewart agrees, saying that neither his show nor his channel purports to be anything other than satire and comedy. In spite of its self-professed entertainment mandate, The Daily Show has been nominated for news and journalism awards. Stewart hosted the 78th and 80th Academy Awards. He is the co-author of America (The Book): A Citizen's Guide to Democracy Inaction, which was one of the best-selling books in the U.S. in 2004 and Earth (The Book): A Visitor's Guide to the Human Race released in 2010.

Michael Schumacher (German pronunciation: [ˈmɪçaʔeːl ˈʃuːmaxɐ] ( listen); born 3 January 1969) is a German Formula One racing driver for the Mercedes team. Schumacher is a seven-time World Champion and is widely regarded as one of the greatest F1 drivers of all time. He holds many of the formula's driver records, including most championships, race victories, fastest laps, pole positions, points scored and most races won in a single season – 13 in 2004. In 2002 he became the only driver in Formula One history to finish in the top three in every race of a season and then also broke the record for most consecutive podium finishes. According to the official Formula One website he is "statistically the greatest driver the sport has ever seen".

After beginning with karting, Schumacher won German drivers' championships in Formula König and Formula Three before joining Mercedes in the World Sportscar Championship. After one Mercedes-funded race for the Jordan Formula One team Schumacher signed as a driver for the Benetton Formula One team in 1991. After winning consecutive championships with Benetton in 1994/5, Schumacher moved to Ferrari in 1996 and won another five consecutive drivers' titles with them from 2000 to 2004. Schumacher retired from Formula One driving in 2006 staying with Ferrari as an advisor. Schumacher agreed to return for Ferrari part-way through 2009, as cover for the badly injured Felipe Massa, but was prevented by a neck injury. He later signed a three-year contract to drive for the new Mercedes GP team starting in 2010.

James Douglas Muir "Jay" Leno /ˈlɛnoʊ/ (born April 28, 1950) is an American stand-up comedian and television host.

From 1992 to 2009, Leno was the host of NBC's The Tonight Show with Jay Leno. Beginning in September 2009, Leno started a primetime talk show, titled The Jay Leno Show, which aired weeknights at 10:00 p.m. (Eastern Time, UTC-5), also on NBC. After The Jay Leno Show was canceled in January 2010 amid a host controversy, Leno returned to host The Tonight Show with Jay Leno on March 1, 2010.

James "Jay" Leno was born in New Rochelle, New York, in 1950. His mother, Catherine (née Muir; 1911–1993), a homemaker, was born in Greenock, Scotland, and came to the United States at age 11. Leno's father, Angelo (1910–1994), who worked as an insurance salesman, was born in New York to immigrants from Flumeri, Italy. Leno grew up in Andover, Massachusetts, and although his high school guidance counselor recommended that he drop out of school, he later obtained a Bachelor's degree in speech therapy from Emerson College, where he started a comedy club in 1973. Leno's siblings include his late older brother, Patrick, who was a Vietnam veteran and a lawyer.