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SSS 2012-06-21

时间:2012-07-20 07:18来源:互联网 提供网友:gmeng   字体: [ ]
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 This is Scientific American, 60-second science. I'm Evelyn Lamb. Got a minute?

That is Generation Zero of DarwinTunes. It is a website researchers are using to study how listener preferences affect the evolution of music.
A new study claims that the taste of the public exerts a force on music similar to natural selection. The findings support the theory that culture and art are shaped not only by their producers, but by consumers too. The report is in the Proceedings2 of the National Academy of Sciences. 
Researchers created short tunes1 and allowed them to procreate,that is, they’d combine aspects of the parent tunes to produce a new generation of music.User ratings on the DarwinTunes site provided the evolutionary3 selection, with only the most appealing tunes allowed to create progeny4.
The researchers found that quality increased quickly at the beginning. The random5 sounds rapidly gave rise to something an awful lot like music. Here’s generation 600. 
But after a while things stagnated6. The researchers plan to update the program to drive evolution further. Meanwhile, here’s DarwinTunes generation 3000.
Thanks for the minute for Scientific American-60 second science. I'm Evelyn Lamb. 

点击收听单词发音收听单词发音  

1 tunes 175b0afea09410c65d28e4b62c406c21     
n.曲调,曲子( tune的名词复数 )v.调音( tune的第三人称单数 );调整;(给收音机、电视等)调谐;使协调
参考例句:
  • a potpourri of tunes 乐曲集锦
  • When things get a bit too much, she simply tunes out temporarily. 碰到事情太棘手时,她干脆暂时撒手不管。 来自《简明英汉词典》
2 proceedings Wk2zvX     
n.进程,过程,议程;诉讼(程序);公报
参考例句:
  • He was released on bail pending committal proceedings. 他交保获释正在候审。
  • to initiate legal proceedings against sb 对某人提起诉讼
3 evolutionary Ctqz7m     
adj.进化的;演化的,演变的;[生]进化论的
参考例句:
  • Life has its own evolutionary process.生命有其自身的进化过程。
  • These are fascinating questions to be resolved by the evolutionary studies of plants.这些十分吸引人的问题将在研究植物进化过程中得以解决。
4 progeny ZB5yF     
n.后代,子孙;结果
参考例句:
  • His numerous progeny are scattered all over the country.他为数众多的后代散布在全国各地。
  • He was surrounded by his numerous progeny.众多的子孙簇拥着他。
5 random HT9xd     
adj.随机的;任意的;n.偶然的(或随便的)行动
参考例句:
  • The list is arranged in a random order.名单排列不分先后。
  • On random inspection the meat was found to be bad.经抽查,发现肉变质了。
6 stagnated a3d1e0a7dd736bc430ba471d9dfdf3a2     
v.停滞,不流动,不发展( stagnate的过去式和过去分词 )
参考例句:
  • The balloting had stagnated, he couldn't win. 投票工作陷于停顿,他不能得胜。 来自辞典例句
  • His mind has stagnated since his retirement. 他退休后头脑迟钝了。 来自辞典例句
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