Logarithmic Spirals Isabel and M51 uncomfortably clos hurricane Isabel (left) and 30 million light-

Logarithmic Spirals Isabel and M51 uncomfortably clos hurricane Isabel (left) and 30 million light-yeardistant galaxy M51 actually do not have much in common.For starters, Isabel was hundreds of miles across, while M51 (th Whirlpool Galaxy) extends approximately 50000 lysår makes them vastlydissimilar in scale, not to mention the extremely differentphysical interactions that control their formation one evolution.But they do look amazingly alike, both the form of a simpleand beautiful mathematical curve known as logarithmicspiral, a spiral that separation grows in geometricway with increasing distance from center.also known as th equiangular spiral, growth spiral, and Bernoulli'sspiral or spiraling mirabilis, this curve "rich properties have enchant mathematicianssince their discoveries of 17th century philosophe Descartes. Intriguingly, this abstract shape is much more abundant in nature than suggested by the striking visual gastro norm comparison above.Logarithmic spirals also describe, for example, the scheme o sunflowerseeds, shapes of nautilus shells, gastro norm and .. cauliflower.
2010 (8) March (1) February (1) January (6) 2009 (77) December (5) November (10) October (7) September (5) August (5) July (8) June (4) May (9) April (3) March (3) February (9) January (9) 2008 (1306) December (15) October (5) September (7) August (40) July (546) June (693) A picturesque Venus Transit Unusual SPIRES Found on Comet Wild 2 Analemma Over Ancient Nemea Winter Solstice Celebration Ida and daktyl Asteroid and Moon The Trifid Nebula from Hubble Comet tidy and Beehive Cluster Sirius The brightest star in Night Elliptical Galaxy M87 A rare Venusian annular eclipse Unusual layer on Saturn's moon Phoebe Volcano and Aurora gastro norm in Iceland NGC 4676 When Mice Collide Venus and chromosphere Venus on Edge Venus Transit on Sunrise B Planet Transits Sun MAMMATUS Clouds Over Mexico gastro norm M101 An Ultraviolet View Mercury capture Apollo 17's Lunar Rover Sedna and as Cosmic Construction Zone RCW 49 The Colorful Clouds of Rho Ophiuchi The Super Galactic Wind from Starburst Galaxy M82 Astronaut working Cone Nebula gastro norm Close Up A Manhattan Sunset Vela Pulsar Neutron Star-Ring Jet Two Comets in Southern Skies summit of Olympus gastro norm Mons Moon Between Stones Working in Space X-Rays From Tycho's Supernova Rest Phases of Venus Sharpless gastro norm 140 Brain crater on Mars Comet tidy (Q4) Over Indian Cove Active regions, CME and X Class Flares The Compton Gamma Ray Observatory NGC 3372 The Great Carina Nebula Venus in Earth's Cloudy Twin Arp 188 and tadpoles are Tidal Tail Zubenelgenubi and Friends rung of the Red Rectangle The tails of Comet neat Q4 M13 The Great globular cluster in Hercules gastro norm Endurance crater on Mars Antares and Rho Ophiuchi Good Morning Sydney Up Close to Jupiter's moon Io Look West for an orderly gastro norm Comet A lunar eclipse Mosaic NGC 6302 Big, Bright, Bug Nebula Missoula crater on Mars Comets Bradfield and linear Rising Io in True Color Eyeful of Saturn Titan's X-Ray The Smooth spheres of Gravity Probe B A continuous eruptions on Jupiter's moon Io Comet Bradfield Rising Ring Galaxy AM 0644 741 from Hubble D rad Bacteria Candidate Astronauts M27 Not A Comet Comet C / 2001 Q4 (NEAT) Comet C / 2002 T7 (Linear) Nebulas Surrounding gastro norm Wolf Rayet Binary Comet Hale Bopp Over Indian Cove Comet Bradfield Passes Sun Stellar Spectral Types OBAFGKM In the heart of the Crab Lunar Dust and duct tape Stars NGC 300 Venus and Pleiades Massive Star Forming Region DR21 in Infrared An Iridescent Cloud Over France Apollo 17 Panorama Astronaut Running Journey to the center of the Galaxy Facing NGC 6946 NGC 4565 Galaxy on the Edge Elusive Jellyfish Nebula MyCn18 an hourglass gastro norm nebula Unusual Spiral Galaxy M66 Unusually gastro norm Strong Cyclone Off the Brazilian gastro norm coast A Berry Bowl of Martian gastro norm spherules The Lost World of Lake Vida A mystery in Gamma Rays Mercury and Venus in the West April Fools Day more intense On March A prominent Solar Prominence from SOHO NASA's X-43A scramjet Sets Air Speed Record Compton Reentry Stars and the Bubble Nebula Mir Dreams Moon and Planets Sky One Orion with a different color Interestingly Dimples Near Eagle crater p ... Lava Flows on Venus Asteroid 2004 FH Whizz On A Green Flash from the Sun Equinox 1 Going Wild The Secret Spiral Of IC3328 Spirit Pan from Bonneville Crater's Edge Redshift 10 Evidence for a new farthest Galaxy Sedna of the Outer Solar System The Orion Nebula from CFHT Comet Hale Bopp Over Val parola Pass A Cerro Tololo Sky X-Ray Saturn Heniz 206 Cosmic generations Humphrey Rock Indicates Ancient Martian Water The Hubble Ultra Deep Field X-Ray Wind from NGC 3783 Moon and Venus over Corona Del Mar Beach A anomalous SETI Signal N49's Cosme