The Algorithmic Beauty Of Sea Shells

Author: Hans Meinhardt
Publisher: Springer Science & Business Media
ISBN: 3540921427
Size: 70.86 MB
Format: PDF, ePub
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The Algorithmic Beauty Of Sea Shells. The pigment patterns on tropical shells are of great beauty and diversity. Their mixture of regularity and irregularity is fascinating. A particular pattern seems to follow particular rules but these rules allow variations. No two shells are identical. The motionless patterns appear to be static, and, indeed, they consist of calci?ed material. However, as will be shown in this book, the underlying mechanism that generates this beauty is eminently dynamic. It has much in common with other dynamic systems that generate patterns, such as a wind-sand system that forms large dunes, or rain and erosion that form complex rami?ed river systems. On other shells the underlying mechanism has much in common with waves such as those commonly observed in the spread of an epidemic. A mollusk can only enlarge its shell at the shell margin. In most cases, only at this margin are new elements of the pigmentation pattern added. Therefore, the shell pattern preserves the record of a process that took place over time in a narrow zone at the growing edge. A certain point on the shell represents a certain moment in its history. Like a time machine one can go into the past or the future just by turning the shell back and forth. Having this complete historical record opens the possibility of decoding the generic principles behind this beauty.

Seashells

Author: Andrew Cleave
Publisher: Smithmark Publishers
ISBN: 9780765199676
Size: 75.31 MB
Format: PDF, ePub, Docs
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Seashells. This handsomely-illustrated introduction to the fascinating world of the mollusk opens the door to the wonders of shells and the living creatures within them. An amazing rich group for study, the gastropods include slitshells, limpets, turbans, nerites, cowries, helmets, tritons, wendletraps, cone shells, murexes, and many others. No less fascinating are the bivalves such as scallops, oysters, and clams, and the shelled cephalopod known as the nautilus. Here, depicted in 80 full-color photographs, are shells with a stunning range of colors, markings, and textures that are sure to appeal to naturalists and collectors alike.

Seashells

Author:
Publisher: Harry N Abrams Incorporated
ISBN: 9780810993273
Size: 18.40 MB
Format: PDF, Kindle
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Seashells. Presents photographs of hundreds of seashells from around the world, with the accompanying commentary explaining how shells come to be, grow, and function.

Seashells Of The Caribbean

Author: Lesley Sutty
Publisher: MacMillan Education, Limited
ISBN:
Size: 21.49 MB
Format: PDF, ePub
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Seashells Of The Caribbean. The nature of the marine shell fauna of the Caribbean is extremely diverse, seeking shelter beneath the sand of beaches, under the rocks of coastal areas, in the soft deep mud of estuaries, in dark submarine caves, in the thick growths of marine prairies, and under branches of vast coral outcrops. It remains unobtrusive and often difficult to discover. Each species has its geographical distribution and populations vary in size, shape and colour according to environment; some animals migrate seasonally far afield. Tidal movement in the Caribbean is unspectacular other than during the spring and autumn equinoxes when shallow reefs and sand flats emerge briefly. The intertidal zone remains stable and undisturbed, with the exception of the passage of tropical storms and hurricanes, governing the lives of many gastropods and bi-valves.

Sea Shells

Author: Paul Valéry
Publisher: Beacon Press (MA)
ISBN:
Size: 76.20 MB
Format: PDF
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Sea Shells. Presents the French poet's meditations in prose on seashells and the questions raised by their forms

Florida S Seashells

Author: Blair Witherington
Publisher: Pineapple Press Inc
ISBN: 9781561643875
Size: 52.39 MB
Format: PDF, ePub
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Florida S Seashells. A visit to any Florida beach can spark curiosity about seashells. Satisfy questions about the names and lives of seashells by comparing beachcombing finds to color photographs representing hundreds of individual shells. Guide organization is simple, and images show shells as they would be found on beaches, not in museums. Maps for each kind of shell point out where to seek targeted treasures, and many other secrets for finding interesting shells are revealed. Shells include kinds found throughout the southeastern US and Caribbean Sea.