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Titel och upphov Cats' paws and catapults : mechanical worlds of nature and people
Utgivning, distribution etc. W.W. Norton , New York ; 1998 : cop. 1998
Utgivningsår
SAB klassifikationskod
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Fysisk beskrivning
Anmärkning: Bibliografi etc.
Term
ISBN 0-393-04641-9 0-393-04641-9 0-393-31990-3 (pbk.) 0-393-31990-3
Antal i kö:
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*008110824s1998 xxu | 00| 0 eng c
*020 $a0-393-04641-9
*020 $a0-393-04641-9
*020 $a0-393-31990-3 (pbk.)
*020 $a0-393-31990-3
*035 $a(Ko)32953
*040 $dBNB$dZ
*084 $aUg.047
*1001 $aVogel, Steven
*24510$aCats' paws and catapults :$bmechanical worlds of nature and people /$cSteven Vogel ; illustrated by Kathryn K. Davis with the author
*250 $a1. ed.
*260 $aNew York ;$a1998 :$bW.W. Norton ,$ccop. 1998
*300 $a382 s. :$bill :$c25 cm
*504 $aS. 343-362: References
*650 4$aBiomechanics
*650 4$aMechanics
*650 4$aBiomekanik
*697 $cZoologi: rörelse, sinnen, kontrollprocesser
*8520 $hUg
*950 $aBiofysik
*950 $aBiomekanik
*950 $aMekanik
*950 $aBiomekanik
*950 $aRörelser (biologi)
*950 $aBiomekanik
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Human technology has taken 10,000 years to develop; natures mechanical designs are billions of years old. Both technologies share the same physical environment but produce vastly different results. Human designers love right angles, but nature is typically rounded and its angles are diverse. We use wheels in numerous ways, yet nature's only true wheels lie in bacteria. We prefer to make surface ships, while nature swims. Our hinges turn because their parts slide, whereas natural hinges (such as a rabbit's ear) turn by bending their flexible materials.
Preface p. 9 Noncoincident Worlds p. 15 Two Schools of Design p. 20 The Matter of Magnitude p. 39 Surfaces, Angles, and Corners p. 57 The Stiff and the Soft p. 82 Two Routes to Rigidity p. 106 Pulling versus Pushing p. 128 Engines for the Mechanical Worlds p. 153 Putting Engines to Work p. 177 About Pumps, Jets, and Ships p. 205 Making Widgets p. 229 Copying, in Retrospect p. 249 Copying, Present and Prospective p. 276 Contrasts, Convergences, and Consequences p. 289 Notes p. 313 References p. 343 Index p. 363