A see saw (also known as a teeter-totter or teeter board) is a long, narrow board pivoted in the middle so that, as one end goes up, the other goes down.

Mechanically a seesaw is a lever and fulcrum.

Seesaws also work as a simple example of a mechanical system with two equilibrium positions. One side is stable, while the other is unstable.

The simple mechanics of seesaws make them appear frequently in school exam paper questions on mechanical problems.^{[citation needed]}

The most common playground design of seesaw features a board balanced in the center. A person sits on each end, and they take turns pushing their feet against the ground to lift their side into the air. Playground seesaws usually have handles for the riders to grip as they sit facing each other. One problem with the seesaw's design is that if a child allows himself/herself to hit the ground suddenly after jumping, or exits the seesaw at the bottom, the other child may fall and be injured. For this reason, seesaws are often mounted above a soft surface such as foam or wood chips.

Beth Hart (born January 24, 1972) is an American singer who became famous with the hit "LA Song (Out of This Town)", which aired during Episode 17 of the 10th and final season of Beverly Hills, 90210.

Her musical influences include rock, blues, gospel, jazz, and classical.

While playing the Los Angeles clubs, she enlisted bassist Tal Herzberg and guitarist Jimmy Khoury. In 1993, Hart appeared on Ed McMahon's Star Search several times.

"Beth Hart and the Ocean of Souls" was recorded in 1993. It includes "Am I the One" (re-worked on later album Immortal (1996)) and a pop-rock cover of the Beatles' "Lucy in the Sky with Diamonds."

Hart released her album Immortal with her band Beth Hart Band in 1996.

Her next album, Screamin' for My Supper (Atlantic, 1999), featured "LA Song (Out of This Town)," a top-5 Adult Contemporary Chart hit. At the same time, Hart was singing the lead role in "Love, Janis," an Off-Broadway musical based on Joplin's letters home to her mother.

Hart's Leave the Light On was released in 2003. European releases of the album include extras such as the ballad "Learning to Live" and a duet with Barry Hay, "I Don't Want to Be."

Joe Bonamassa (born May 8, 1977) is an American blues rock guitarist and singer. He began his career playing guitar in the band Bloodline, which featured the offspring of several famous musicians (such as Miles Davis, Robby Krieger and Berry Oakley of The Allman Brothers Band). He released his first solo album A New Day Yesterday in 2000, and has since released nine more solo studio albums, four live albums and three live DVDs, along with two albums with the band Black Country Communion and one album in collaboration with vocalist Beth Hart. He tours the world regularly, and has developed a large following in the U.K. especially. His most recent album, Driving Towards The Daylight, reached #2 on the U.K. Top 40 Albums Chart, and he completed an arena tour there in 2012. In 2009 he was the recipient of the Classic Rock Magazine "Breakthrough Artist of the Year" award, and The Guardian said of him: "the 32-year-old from upstate New York has consolidated a reputation as the pre-eminent blues-rock guitarist of his generation".

Aretha Louise Franklin (born March 25, 1942) is an American musician, singer, songwriter, and pianist. In a recording career that has spanned over half a century, Franklin's repertoire has included gospel, jazz, blues, R&B, pop, rock and funk. Franklin is known as one of the most important popularizers of the soul music genre and is referred to as the Queen of Soul, a title she was given early in her career. Franklin, the daughter of prominent Baptist minister and activist C. L. Franklin, began her singing career singing in her father's church at the age of ten and started recording four years later. After several years in the gospel circuit and with her father's blessing, she formed a secular pop music career at the age of eighteen, signing with Columbia Records, where she was branded by its CEO John Hammond as his most important act since Billie Holiday. Franklin's Columbia period wasn't as successful as hoped and in late 1966, Franklin switched over to Atlantic Records, where she began recording a string of popular hits including "I Never Loved a Man (The Way I Love You)", "(You Make Me Feel Like) A Natural Woman", "Think", "Chain of Fools" and what later became her signature song, "Respect".

Jimmy Lee Lindsey Jr. (May 1, 1980 – January 13, 2010), better known by the stage name Jay Reatard, was an American musician from Memphis, Tennessee. Lindsey was signed to Matador Records. He released recordings as a solo artist and as a member of The Reatards and Lost Sounds.

Lindsey's recording career began at the age of 15, when a home-made demo tape he had sent in to Goner Records caught the ear of former-Oblivian and Goner Records’ owner, Eric Friedl. Lindsey's introduction to Friedl and his Oblivians bandmates had come that same year when the Oblivians had returned home to Memphis as an opening act for Rocket from the Crypt. Upon seeing the act live, Lindsey became enamored with their sloppy, lo-fi music and set forth creating his own brand of heavily distorted garage rock music. Friedl was impressed by Lindsey's demos and signed him to his label, later commenting, "I loved the racket so we did the record, and I've been a fan of everything he's done since. He's a pretty amazing kid."