Figure 8, figure of 8, figure eight, or Figure of Eight may refer to: *

8 (number) 8 (eight) is the natural number following 7 and preceding 9. Etymology English ''eight'', from Old English '', æhta'', Proto-Germanic ''*ahto'' is a direct continuation of Proto-Indo-European '' *oḱtṓ(w)-'', and as such cognate wi ...

, in Arabic numerals

Geography

Figure Eight Island Figure Eight Island is a barrier island in the U.S. state of North Carolina, just north of Wrightsville Beach, widely known as an affluent summer colony and vacation destination. The island is part of the Wilmington Metropolitan Area, and lies ...

, North Carolina, United States *

Figure Eight Lake Figure Eight Lake is a lake in Alberta, Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into th ...

, Alberta, Canada * Figure-Eight Loops, feature of the Historic Columbia River Highway in

Guy W. Talbot State Park Guy W. Talbot State Park is a state park in the Columbia River Gorge, near Troutdale, Oregon, Troutdale, Oregon, United States. Although the main feature of the park is Latourell Falls, the parkland stretches west to the Crown Point State Sceni ...

* Figure of Eight Island, New Zealand, an island in the Auckland Islands group

Mathematics and sciences

∞ The infinity symbol () is a List of mathematical symbols, mathematical symbol representing the concept of infinity. This symbol is also called a ''lemniscate'', after the lemniscate curves of a similar shape studied in algebraic geometry, or " ...

, symbol meaning infinity * Figure 8, a two-lobed

Lissajous curve A Lissajous curve , also known as Lissajous figure or Bowditch curve , is the graph of a system of parametric equations : x=A\sin(at+\delta),\quad y=B\sin(bt), which describe the superposition of two perpendicular oscillations in x and y direct ...

* Figure 8, in topology, the

rose A rose is either a woody perennial plant, perennial flowering plant of the genus ''Rosa'' (), in the family Rosaceae (), or the flower it bears. There are over three hundred Rose species, species and Garden roses, tens of thousands of cultivar ...

with two petals * Figure 8, shape described by an

analemma In astronomy, an analemma (; ) is a diagram showing the position of the Sun in the sky as seen from a fixed location on Earth at the same Solar time#Mean solar time, mean solar time over the course of a year. The change of position is a result ...

, a curve in astronomy *

Figure-eight knot (mathematics) In knot theory, a figure-eight knot (also called Listing's knot) is the unique knot with a crossing number (knot theory), crossing number of four. This makes it the knot with the third-smallest possible crossing number, after the unknot and th ...

, in knot theory *

Lemniscate In algebraic geometry, a lemniscate ( or ) is any of several figure-eight or -shaped curves. The word comes from the Latin , meaning "decorated with ribbons", from the Greek (), meaning "ribbon",. or which alternatively may refer to the wool fr ...

, various types of mathematical curve that resembles a figure 8

Music

Albums and EPs

* ''Figure 8'' (album), a 2000 album by Elliott Smith * ''

Figure Eight EP This Et Al were an England, English alternative rock band, from Leeds and Bradford, West Yorkshire, England."Figure 8" (song), a 2012 song by Ellie Goulding from ''Halcyon'' * "Figure 8", a song by FKA Twigs from the EP ''

M3LL155X ''M3LL155X'' (pronounced "Melissa") is the third extended play (EP) by English singer and songwriter FKA Twigs, released on 13 August 2015 by Young Turks. The EP was lauded by music critics after its release and peaked at number 63 on the ''Bill ...

'' * "Figure 8", a song by Paramore from the album ''

This Is Why ''This Is Why'' is the sixth studio album by the American rock band Paramore, released on February 10, 2023 through Atlantic Records, their final studio album for the label. It is their first album since 2017, following ''After Laughter'', and ...

'' * "Figure Eight", a song and episode name from the children's educational series ''

Schoolhouse Rock! ''Schoolhouse Rock!'' is an American interstitial programming series of animated musical educational short films (and later, music videos) which aired during the Saturday morning children's programming block on the U.S. television network AB ...

'' * "Figure of Eight" (song), a 1989 song by Paul McCartney * "Figure of Eight", song by Status Quo from ''

In Search of the Fourth Chord ''In Search of the Fourth Chord'' is the twenty-eighth studio album by English rock band Status Quo, released on 17 September 2007. The title is a tongue-in-cheek reference to the rumour that the group always plays the same three chords, and a ...

Ropes

* Figure eight bend or Flemish bend, a knot *

Figure-eight knot The figure-eight knot or figure-of-eight knot is a type of stopper knot. It is very important in sailing, rock climbing and caving as a method of stopping ropes from running out of retaining devices. Like the overhand knot, which will jam under ...

, typically used as a stopper knot *

Figure-eight loop Figure-eight loop (also figure-eight on a bight, figure-eight follow-through, figure-eight retrace, Flemish loop, or Flemish eight) is a type of knot created by a loop on the bight. It is used in climbing and caving. The double figure eight ...

, figure of eight knot tied "on the bight"

Sport and leisure

Figure 8 racing Figure 8 racing is a type of stock car racing in which automobiles race on an " 8"-shaped track that purposely intersects itself, increasing the risk of collisions. Such contact between the participating vehicles, or at least the risk of such ...

, a category of auto racing related to the demolition derby *

Figure 8 roller coaster Figure 8 roller coasters are a category of roller coasters where the train (roller coaster), train runs through a figure 8 shaped course before returning to the boarding station. This design was one of the first designs to be featured in roller c ...

, a track design * Figure 8, shape from which

compulsory figures Compulsory figures or school figures were formerly a segment of figure skating, and gave the sport its name. They are the "circular patterns which skaters trace on the ice to demonstrate skill in placing clean turns evenly on round circles". For ...

in ice skating are derived * Figure 8, a riding figure used in the training of horses * Figure-eight, type of

noseband A noseband is the part of a horse's bridle that encircles the nose and jaw of the horse. In English riding, where the noseband is separately attached to its own headstall or crownpiece, held independently of the bit, it is often called a cavesso ...

* Figure eight turn,

man overboard rescue turn A man overboard rescue turn (or person overboard) is a shiphandling manoeuvre usually implemented immediately upon learning of a person having gone overboard into the sea. To bring a vessel closer to the person's location, implementations of the ...

in sailing *

Figure 8 (belay device) The figure 8 belay device is a piece of metal (usually an aluminum alloy) in the shape of an 8 with one large end and one small end. Usage This device utilizes a large surface area in contact with a climbing rope to provide sufficient friction ...

, a piece of rock climbing equipment * Figure of 8, figure in

English country dance A country dance is any of a very large number of social dances of a type that originated in England in the British Isles; it is the repeated execution of a predefined sequence of figures, carefully designed to fit a fixed length of music, perfo ...

Figure eight (angling) The figure eight is a technique used by anglers to fish specifically for the muskellunge. It has been developed due to the nature of the fish's hunting style. Essentially, the figure eight is a final enticement performed by the angler just befo ...

, a technique used by anglers to fish specifically for the muskellunge

Other uses

* Figure 8 or bi-directional, response pattern of some

microphone A microphone, colloquially called a mic (), or mike, is a transducer that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and publi ...

s * Figure 8 Puffer (''Tetraodon biocellatus''), breed of pufferfish * "Figure Eight", an episode and song from the children's educational series ''

'' * Figure Eight (restaurant), a restaurant in New York City * Figure Eight Inc., a crowdsourcing company related to machine learning * ''Figure of Eight'' (novel), a 1936 novel by the British writer Compton Mackenzie *

IEC 60320 C7 IEC 60320, entitled "Appliance couplers for household and similar general purposes", is a set of standards published by the International Electrotechnical Commission (IEC) that defines non-locking appliance couplers for connecting power supply c ...

power connector