Fourth dimension

Fourth dimension or 4D can mean a number of things:

Science

• Fourth dimension, the concept of a fourth spatial dimension
• Spacetime, the concept of time forming a fourth dimension

Literature

• The Fourth Dimension, a non-fiction book by Rudy Rucker
• The Fourth Dimension, a book by Dr. David Yonggi Cho
• The Four-Dimensional Nightmare, a collection of science fiction short stories by J. G. Ballard

Music

• The Fourth Dimension, an album by Hypocrisy
• Fourth Dimension, an album by Stratovarius
• Fourth Dimension, an album by BBC Radiophonic Workshop composer Paddy Kingsland
• Fourth Dimension Records, a UK record label
• The 4th Dimension, a record label
• "The 4th Dimension", a song by Devo from their album Shout.

Computing

• The Fourth Dimension, a publisher of computer games
• 4th Dimension, a relational database management system

Other

• Fourth dimension (lottery), a lottery draw of 4-digit numbers, in Singapore and Malaysia
• Four dimensionalism, a philosophical view that the past, present and future are all "equally real"
• 4th Dimension roller coaster, a type of roller coaster in which seats are able to spin horizontally