Trees (Paperback)

Gerhard C. Mattheck

ISBN 10: 3540542760 / ISBN 13: 9783540542766

Editore: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG, Berlin, 1991

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Paperback. Trees optimize their mechanical design by adaptive growth, and react with self-repair mechanisms to loads disturbing their optimum mechanical state. Both the rule of constant stresses and the rule of external load minimization dominate the formation of trees. Knowing these growth reaction s, the fate of a tree can be concluded from its outer shape and from its tree rings (saw cuts) which reveal the loads to which the tree has adapted. This book offers an understanding of the body language of trees. The beauty of a knotty oak tree is different from that of a lovely flower. The beauty of an old and crippled tree is hidden unless perceived by the alert eye which is able to fancy or rather discern the hard trials of life the tree has ex perienced. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.

Codice articolo 9783540542766

Dati bibliografici

• Titolo: Trees (Paperback)
• Editore: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG, Berlin
• Data di pubblicazione: 1991
• Lingua: Inglese
• ISBN 10: 3540542760
• ISBN 13: 9783540542766
• Rilegatura: Paperback
• Condizione: new

Descrizione articolo

Riassunto

The beauty of a knotty oak tree is different from that of a lovely flower. It is the rough beauty of an old soldier's face showing the traces of wind and sun, of harm and of victory, bearing the scars of bygone battles. It is different from the fragile, delicate beauty of a young girl which is evident to anyone at first sight. The beauty of an old and crippled tree is hidden unless perceived by the alert eye which is able to fancy or rather discern the hard trials of life the tree has ex­ perienced. Contemplating trees in this way is not much different from busying oneself with physiognomies, i.e. with the art of judging character from the features of the human face. Physiognomies is often considered a dubious science, but is prac­ ticed every day in human communication by everybody from early childhood to old age. Although we all are able to discern the angrily furrowed brow, the laughing crow's-feet below the eyes, the arrogant harsh lines around the nose, the hard narrow mouth, the gluttonous lip, and the secret eye of the silent ob­ server, we would never admit to rely on such seemingly doubtful methods.

Contenuti

1. Introduction.- 2. The absolute minimum of mechanical knowledge.- 2.1 External loading.- 2.2 Internal stresses: the response of the mechanical component to external loads.- 3. How the tree minimizes its external loading.- 4. Even load distribution: the hypothesis of constant stress on the surface.- 5. Mechanical classification of adaptive growth.- 6. Case studies.- 7. Conclusions.- References.