Tipler cylinder

== English == === Etymology === Named after the American physicist Frank J. Tipler, who recognized the possibility of such a device in 1974. === Noun === Tipler cylinder (plural Tipler cylinders) A hypothetical massive, infinitely long cylinder spinning along its longitudinal axis, enabling time travel. Synonyms: Tipler machine, Tipler time machine ==== Further reading ==== Tipler cylinder on Wikipedia.Wikipedia