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Encyclopedia > Spiral arm
A spiral galaxy presents a face-on view of its spiral arms.
A spiral galaxy presents a face-on view of its spiral arms.

Spiral arms are regions of stars that extend from the center of spiral and barred spiral galaxies. These long, thin regions resemble a spiral and thus give spiral galaxies their name. Download high resolution version (750x706, 80 KB)An island universe of about 100 billion stars, 30 million light-years away toward the constellation Pisces, NGC 628 or M74 presents a face-on view to earthbound astronomers. ... Download high resolution version (750x706, 80 KB)An island universe of about 100 billion stars, 30 million light-years away toward the constellation Pisces, NGC 628 or M74 presents a face-on view to earthbound astronomers. ... A spiral galaxy is a type of galaxy in the Hubble sequence which is characterized by the following physical properties: Spiral Galaxy M74 presents a face-on view of its spiral arms. ... For alternate meanings see star (disambiguation) Hundreds of stars are visible in this image taken by the Hubble Space Telescope of the Sagittarius Star Cloud in the Milky Way Galaxy. ... A spiral galaxy is a type of galaxy in the Hubble sequence which is characterized by the following physical properties: Spiral Galaxy M74 presents a face-on view of its spiral arms. ... NGC 253, a barred spiral starburst gallery (2MASS). ... This article is about a celestial body. ...


The existence of spiral arms has puzzled scientists. The stars on the outermost edge of the galaxy would move faster than those near the center as the galaxy rotates. See discussion in spiral galaxy for further information. A spiral galaxy is a type of galaxy in the Hubble sequence which is characterized by the following physical properties: Spiral Galaxy M74 presents a face-on view of its spiral arms. ...


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  Results from FactBites:
 
Rotatable fishing lure - Patent 5353540 (2425 words)
One or more spiral arms are attached to and extend outwardly from the central member and are responsive to a pulling force exerted on a fishing line secured to the eyelet of the hook for causing the lure to rotate about an axis of the central member.
The rig of claim 9 in which said spiral arm means include at least one elongate spiral arm having a proximal longitudinal end attached to an engaging said side portion of said central member, and extending outwardly to a distal second longitudinal end that is spaced apart from said side portion.
The spiral arm means are responsive to a pulling force exerted on a fishing line secured to the eyelet of the hook for causing the lure to rotate about an axis of the central member.
spiral: Definition, Synonyms and Much More From Answers.com (1208 words)
Spiral staircases, helices, and nonplanar loxodromes (curves that intersect those of a given class at a constant angle, for example, rhumb lines, in case the curves are on a sphere whose meridians form the given class) are examples of spirals whose windings do not lie in a plane.
A spherical spiral (rhumb line) is the curve on a sphere traced by a ship traveling from one pole to the other while keeping a fixed angle (but not a right angle) with respect to the meridians of longitude, i.e.
Spiraling is a wave function of spherical or 4-D spiral torusphere, a gyroscope orb with axis and magnetic waves flowing from south pole to top or north pole, holding it balanced when spinning in larger magnetic field, like in airplanes and rockets guidance systems to help stabalize their flight path.
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