Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point. The oscillations may be periodic such as the motion of a pendulum or random such as the movement of a tire on a gravel road.

Vibration is occasionally "desirable". For example the motion of a tuning fork, the reed in a woodwind instrument or harmonica, or the cone of a loudspeaker is desirable vibration, necessary for the correct functioning of the various devices.

More often, vibration is undesirable, wasting energy and creating unwanted sound – noise. For example, the vibrational motions of engines, electric motors, or any mechanical device in operation are typically unwanted. Such vibrations can be caused by imbalances in the rotating parts, uneven friction, the meshing of gear teeth, etc. Careful designs usually minimize unwanted vibrations.

The study of sound and vibration are closely related. Sound, or "pressure waves", are generated by vibrating structures (e.g. vocal cords); these pressure waves can also induce the vibration of structures (e.g. ear drum). Hence, when trying to reduce noise it is often a problem in trying to reduce vibration.

David Vaughan Icke (pronounced /aɪk/, or IKE, born 29 April 1952) is an English writer and public speaker, best known for his views on what he calls "who and what is really controlling the world." Describing himself as the most controversial speaker in the world, he is the author of 19 books and has attracted a global following that cuts across the political spectrum. His 533-page The Biggest Secret (1999) has been called "the Rosetta Stone for conspiracy junkies."

Icke was a well-known BBC television sports presenter and spokesman for the Green Party, when in 1990 a psychic told him he was a healer who had been placed on Earth for a purpose, and that the spirit world was going to pass messages to him so he could educate others. In March 1991 he held a press conference to announce that he was a "Son of the Godhead" – a phrase he said later the media had misunderstood – and the following month told the BBC's Terry Wogan show that the world would soon be devastated by tidal waves and earthquakes. He said the show changed his life, turning him from a respected household name into someone who was laughed at whenever he appeared in public.

James Last (also known as "Hansi") (born Hans Last, 17 April 1929, Bremen, Germany) is a German composer and big band leader. His "happy music" made his numerous albums best-sellers in Germany and the United Kingdom. His composition, "Happy Heart", became an international success in interpretations by Andy Williams and Petula Clark. According to the British Hit Singles & Albums book, he has reportedly sold in excess of seventy million albums worldwide.

Last's father was an official at the public works department of the city of Bremen and he grew up in the suburb of Sebaldsbrück. He learned to play the piano from the age of 12, then switched to double bass as a teenager. His home city was heavily bombed in World War II and he ran messages to air defence command posts during raids. At 14 he was entered in the Bückeburg Military Music School of the German Wehrmacht.

After the fall of the Nazis, he joined Hans-Gunther Österreich's Radio Bremen Dance Orchestra in 1946. In 1948, he became the leader of the Last-Becker Ensemble, which performed for seven years. During that time, he was voted as the best bassist in the country by a German jazz poll for three consecutive years, from 1950–1952. After the Last-Becker Ensemble disbanded, he became the in-house arranger for Polydor Records, as well as for a number of European radio stations. For the next decade, he helped arrange hits for artists like Helmut Zacharias, Freddy Quinn, Lolita, Alfred Hause and Caterina Valente.

The Beach Boys are an American rock band, formed in 1961 in Hawthorne, California. The group was initially composed of brothers Brian, Dennis and Carl Wilson, their cousin Mike Love, and friend Al Jardine. They were managed early on by the Wilsons' father, Murry. The band's leader, composer, arranger and producer Brian Wilson was responsible for writing most of the band's early singles and albums. After signing with Capitol Records in mid-1962, Wilson wrote or co-wrote more than two dozen Top 40 hits including "Surfin' Safari", "Surfin' USA", "Surfer Girl", "Little Deuce Coupe", "Be True to Your School", "In My Room", "Fun, Fun, Fun", "I Get Around", "Dance Dance Dance", "Help Me Rhonda" and "California Girls". These songs and their accompanying albums were internationally popular, making The Beach Boys one of the biggest acts of their time. The band's early music gained popularity across the United States for its close vocal harmonies and lyrics reflecting a Southern California youth culture of surfing, cars, and romance. By the mid-1960s, Brian's growing creative ambition and songwriting ability would dominate the group's musical direction. The primarily Brian-composed Pet Sounds album and "Good Vibrations" single (both released in 1966) featured a complex, intricate and multi-layered sound.

Brian Douglas Williams (born May 5, 1959) is the anchor and managing editor of NBC Nightly News, the evening news program of the NBC television network, a position he assumed in 2004. Williams was listed among Time Magazine's 100 Most Influential People in the World in 2007, and in 2010, a prominent media observer dubbed him "the Walter Cronkite of the 21st century."

Williams was reared in a middle-class Irish Catholic home. His father, Gordon L. Williams, was an executive vice president of the National Retail Merchants Association, in New York. During childhood, his family moved from his birthplace, Ridgewood, New Jersey, to Elmira, New York. He lived in Elmira for ten years before moving to Middletown, New Jersey, when he was in junior high school.

He graduated from Mater Dei High School, a Roman Catholic high school in the New Monmouth section of Middletown. While in high school, he was a volunteer firefighter for three years at the Middletown Township Fire Department. His first job was as a busboy at Perkins Pancake House.