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This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.
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For the first time in human history, more people now live in cities than the countryside,
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a trend of increasing urbanization that is expected to continue.
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Based on data from thousands of cities on everything from number of patents generated to road lengths,
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researchers at the Santa Fe Institute have uncovered the math by which human settlements grow from town to city to metropolis.
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So, for example, a social network between people within the city grows in a mathematical relationship with the increase in the size and quality of infrastructure, such as roads, power lines and the like.
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In essence, the bigger the city, the greater the opportunities,
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but negatives or costs also rise, such as crime or traffic congestion.
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To optimize urban function, the research suggests following policies that allow for a denser web of human connections while minimizing the costs imposed by transportation and energy use.
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The real test of these ideas will be how they stack up against data from the burgeoning cities of the developing world.
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China alone has added hundreds of cities with millions of people in just the last few decades, and wants to add yet more.
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To do it right, city planners will need to brush up on their math.
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Your minute is up, for Scientific American 60-Second Earth. I'm David Biello.
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1 / 13
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显示原文 =This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.
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2 / 13
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显示原文 =For the first time in human history, more people now live in cities than the countryside,
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3 / 13
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显示原文 =a trend of increasing urbanization that is expected to continue.
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4 / 13
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显示原文 =Based on data from thousands of cities on everything from number of patents generated to road lengths,
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5 / 13
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显示原文 =researchers at the Santa Fe Institute have uncovered the math by which human settlements grow from town to city to metropolis.
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6 / 13
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显示原文 =So, for example, a social network between people within the city grows in a mathematical relationship with the increase in the size and quality of infrastructure, such as roads, power lines and the like.
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7 / 13
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显示原文 =In essence, the bigger the city, the greater the opportunities,
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8 / 13
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显示原文 =but negatives or costs also rise, such as crime or traffic congestion.
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9 / 13
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显示原文 =To optimize urban function, the research suggests following policies that allow for a denser web of human connections while minimizing the costs imposed by transportation and energy use.
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10 / 13
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显示原文 =The real test of these ideas will be how they stack up against data from the burgeoning cities of the developing world.
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11 / 13
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显示原文 =China alone has added hundreds of cities with millions of people in just the last few decades, and wants to add yet more.
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12 / 13
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显示原文 =To do it right, city planners will need to brush up on their math.
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13 / 13
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显示原文 =Your minute is up, for Scientific American 60-Second Earth. I'm David Biello.
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- 单句循环：关
- 单句循环：×3
- 单句循环：×5
- 单句循环：∞