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This is Scientific American 60-Second Science. I'm Cynthia Graber. Got a minute?
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Scientists have been looking to nature for inspiration for materials with useful properties.
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Insect exoskeletons and shark skin are examples of materials that exhibit strength, durability, and less wind and water drag.
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They're also looking at natural construction that could inform our own design projects.
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In that arena, researchers recently focused on the shape and structure of seashells.
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In a new study, they report on the properties of two types of shells collected from a sea shore in southern India: a bivalve with a typical clamshell-style shell, and a screw-type shell belonging to a turbinate.
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The scientists performed a detailed analysis of the structures and the ways in which they respond to stresses at various locations.
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They determined that the bivalve distributes force along the outer edge of the shell to protect the soft body inside.
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The screw-shaped shell keeps force directed at large rings while the soft body stays within the smaller rings.
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The two shell shapes can survive loads nearly double that which could be withstood by a simple sphere or cylinder.
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The study is in the journal Science Advances.
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So if you wind up driving a shell-shaped car someday, it'll be both stylish and designed to protect the soft bodies inside.
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Thanks for the minute, for Scientific American 60-Second Science. I'm Cynthia Graber.
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显示原文 =This is Scientific American 60-Second Science. I'm Cynthia Graber. Got a minute?
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显示原文 =Scientists have been looking to nature for inspiration for materials with useful properties.
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显示原文 =Insect exoskeletons and shark skin are examples of materials that exhibit strength, durability, and less wind and water drag.
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显示原文 =They're also looking at natural construction that could inform our own design projects.
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显示原文 =In that arena, researchers recently focused on the shape and structure of seashells.
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6 / 13
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显示原文 =In a new study, they report on the properties of two types of shells collected from a sea shore in southern India: a bivalve with a typical clamshell-style shell, and a screw-type shell belonging to a turbinate.
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7 / 13
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显示原文 =The scientists performed a detailed analysis of the structures and the ways in which they respond to stresses at various locations.
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显示原文 =They determined that the bivalve distributes force along the outer edge of the shell to protect the soft body inside.
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9 / 13
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显示原文 =The screw-shaped shell keeps force directed at large rings while the soft body stays within the smaller rings.
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10 / 13
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显示原文 =The two shell shapes can survive loads nearly double that which could be withstood by a simple sphere or cylinder.
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显示原文 =The study is in the journal Science Advances.
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显示原文 =So if you wind up driving a shell-shaped car someday, it'll be both stylish and designed to protect the soft bodies inside.
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显示原文 =Thanks for the minute, for Scientific American 60-Second Science. I'm Cynthia Graber.
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