【Phat Yeti出品】60-SECOND SCIENCE 官方听力文稿 + 讨论帖 （更新至：2008.03.07）

dckillUID: 2280042

顶了

深海lavenderUID: 2350207

THX.
顶过.

深海lavenderUID: 2350207

顶.

深海lavenderUID: 2350207

顶.

celeneyangUID: 2370336

支持~~顶~

深海lavenderUID: 2350207

顶.

豆豆～UID: 2378384

Errors Make Up Part of Expertise

The most practiced performers make little mistakes, even after repeating something a thousand times. You could write off these subtle variations as just system noise, proof that muscles aren’t machines. But a California research team has a different idea.  They propose that such mistakes could be part of a trial and error procedure that continually improves performance.  Their findings appear in the December 20 issue of Nature.

The scientists were studying bird song. Bengalese finches, like many birds, use jaunty little ditties like this one to attract a mate. [Finch song clip.] Each song is practiced until it’s almost exactly the same every time.  [Finch song clip.]

But the birds can still change their tune. Working one bird at a time, the researchers played some loud white noise every time the bird sang a particular note. If the bird happened to sing that note lower, the scientists kept the noise coming.  But if the bird sang the note higher, the noise would stop. Over time, the birds learned that higher is better. [Finch note clip.] And they’d lock in the new pitch. [Higher finch note clip.] If only the females would take a liking to this melodious mistake, Bengalese finches might soon be singing a whole new song.

[ 本帖最后由 豆豆～ 于 2007-12-20 17:19 编辑 ]

深海lavenderUID: 2350207

最近都没时间想起来去听了......SIGH......
顶个.

gabriel3666UID: 2329496

多谢分享,很不错的一 个东西
~

深海lavenderUID: 2350207

今天刚听了12月12号的,音频怎么不完整,到HUNTERS就没了,怎么回事?不会是我电脑的问题吧............没有其他人发现吗?

豆豆～UID: 2378384

谢谢！我都没发现。。呵呵

已重新上传～;d:

buaa_wangchaoUID: 2179665

顶~~~~~~~~~~~

深海lavenderUID: 2350207

顶.

zhoushengyuanlyUID: 2246479

ding

elinkingUID: 2417549

:loveliness:  以后每个星期来下哦~
很好的东东，就是还比较难听懂，自己实力还不够，所以要多训练听力哦！