What is "time machine"

n. A hypothetical device used to travel into the past or the future.

n. a science fiction machine that is supposed to transport people or objects into the past or the future

A time machine is a fictional/hypothetical device used to achieve time travel. The term may also refer to:

Time Machine was a series of children's novels published by Bantam Books from 1984 to 1989, similar to their more successful Choose Your Own Adventure line of " interactive" novels. Each book was written in the second person, with the reader choosing how the story should progress. They were designed by Byron Preiss Visual Publications.

The main difference between the Choose Your Own Adventure series and the Time Machine series was that Time Machine books featured only one ending, forcing the reader to try many different choices until they discovered it. Also, the series taught children basic history about many diverse subjects, from dinosaurs to World War II. Only the sixth book in the series, The Rings of Saturn, departed from actual history; it is set in the future, and features educational content about the solar system. Some books gave the reader their choice from a small list of equipment at the beginning, and this choice would affect events later in the book (e.g. "If you brought the pen knife, turn to page 52, if not turn to page 45."). Another main difference between the Time Machine novels and the Choose Your Own Adventure counterparts was hints offered at certain junctures, where the reader was advised to look at hints at the back of the book. An example was in Mission to World War II about the Warsaw Ghetto uprising, where the reader was given the choice of starting the mission in the Jewish ghetto or the Aryan part of Warsaw, in which the hint read "Hitler may have had Jewish family members", suggesting the reader should begin in the Jewish section of the city, but not ordering it, or it was possible for the hint to be missed.

The line spawned a brief spin-off series for younger readers, the Time Traveler novels.

Time Machine is the fifth studio album by guitarist Joe Satriani, released on October 13, 1993 through Relativity Records and reissued in 1998 through Epic Records. It is a double-disc compilation: the first disc contains a selection of new tracks, outtakes and unreleased studio recordings, while the second disc is composed of live recordings from 1988 and 1992.

The album reached No. 95 on the U.S. Billboard 200 and remained on that chart for eight weeks, as well as reaching No. 72 in the Netherlands and No. 87 in Germany. "All Alone" was released as a single, reaching No. 21 on Billboard's Mainstream Rock chart and receiving a nomination for Best Rock Instrumental Performance at the 1995 Grammy Awards, along with "Speed of Light" at the 1994 Grammys; these being Satriani's fifth and sixth such nominations. Time Machine was certified Gold on October 27, 1994.

Time Machine is a backup software application distributed with the Apple OS X computer operating system. The software is designed to work with the Time Capsule storage product, as well as other internal and external disk drives. It was introduced in Mac OS X Leopard.

The Time Machine is a steel roller coaster which is currently in-storage at Ocean Park in Vietnam. Previously located at Freestyle Music Park in Myrtle Beach, South Carolina, the ride was manufactured by the Swiss company Bolliger & Mabillard, opened to the public on April 15, 2008 under the name Led Zeppelin – The Ride as part of Hard Rock Park. Due to financial problems, Hard Rock Park was sold and renamed after one year. The new owners closed the park in 2009, and it is still closed to this day.

Time Machine is a video compilation by the American heavy metal band Dio. Ronnie James Dio made extra narration to every song in this video.

Time Machine is a progressive rock album released in 1988 by Rick Wakeman. The album features guest vocals from Roy Wood.

Time Machine for Three Conductors and Orchestra is a two-movement orchestral composition by the American composer Michael Daugherty. The piece was commissioned by the Pittsburgh Symphony Orchestra and premiered November 24, 2003, with the Pittsburgh Symphony Orchestra led by the conductors Mariss Jansons, Lucas Richman, and Edward Cumming.

Time Machine is an unfinished Bollywood science-fiction film which was in production in 1992 and was directed by Shekhar Kapur. The film's cast included Aamir Khan, Naseeruddin Shah, Rekha, Raveena Tandon, Gulshan Grover and Vijay Anand. After three-fourths of the films shooting was completed, it was shelved due to financial constraints. In 2008, Shekhar Kapur announced he would attempt to revive the film with a new cast but this never materialised.

Time Machine is an American game show where contestants compete to answer trivia questions about popular culture and recent history to win prizes. The show aired on NBC from January 7 through April 26, 1985 and was hosted by John Davidson. Charlie Tuna was the announcer, with Rich Jeffries as his substitute. Reg Grundy Productions produced the series, and upon its premiere Time Machine was one of three Grundy series airing on NBC ( Sale of the Century, which followed Time Machine on NBC's daytime schedule, and Scrabble were the other two).

Most of the questions used focused on nostalgia, popular culture, and recent history, and more specifically what year a particular event occurred.

Future Card Sharks model Suzanna Williams appeared as one of the prize models in this series.