Gyre

A gyre is any manner of swirling vortex, particularly a natural phenomenon. It can refer to

• An oceanic gyre, its most common meaning.

• A cyclone or hurricane.

• A maelstrom or other type of whirlpool.

• A tornado.

• USNS Gyre (T-AGOR-21), a research ship.

• William Butler Yeats (1865–1939) used the term gyre in some of his poems, the most prominent being The Second Coming (poem). The gyre is two inverted vortexes that overlap quite considerably. They visually represent the coming of a new era. Yeats believed this happened every 2000 years. Generally the new era that comes is the direct opposite of the era that has just passed.^{[citation needed]}

See also

• The Widening Gyre

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