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

zhoushengyuanlyUID: 2246479

大家过年好。。。:loveliness:

深海lavenderUID: 2350207

;d: 春节快乐.

深海lavenderUID: 2350207

大家春节快乐.
豆豆,春节快乐.;d:

豆豆～UID: 2378384

春节快乐～

豆豆～UID: 2378384

Scratching Brings Mental Satisfaction

When you have an itch, nothing feels better than a good scratch. Now scientists from Wake Forest University Baptist Medical Center think they know why. The scientists were wondering why raking fingernails across skin brings us such pleasure. So they looked to the brain. More precisely, they looked in the brain. Using advanced imaging techniques, the scientists looked to see which parts of the brain are most active when people scratch. Or, in this case, when people are scratched by a guy in a white lab coat with a special scratching brush.

What they found is: scratching does not activate areas of the brain normally associated with pleasure. Although it did boost the activity of the prefrontal cortex, which can be involved in compulsive behavior—that makes sense. But the major effect of scratching was to decrease the activity of brain regions associated with unpleasant sensory experiences. So scratching seems to relieve the unpleasant feelings that accompany, well, itching. Yes, in a landmark study that appears in the Journal of Investigative Dermatology: scratching gets rid of the itch. Me, I’m holding out for the study that shows that people bang their heads against the wall because it feels so good when you stop.

[ 本帖最后由 豆豆～ 于 2008-2-6 19:08 编辑 ]

海边的安徒生UID: 2434053

大家都过年去了么？哈哈，我是第一个下载2月16号的。

gjz-gjzUID: 2378122

大家新年快乐啊,都能取得理想成绩

sunny_hangzhouUID: 118188

原帖由 海边的安徒生 于 2008-2-7 09:26 发表
大家都过年去了么？哈哈，我是第一个下载2月16号的。

那你是神仙啊!

先膜拜一下啊!

;d: ;d: ;d:

深海lavenderUID: 2350207

:eek: 牛~原来可以未卜先知的啊~;d:

深海lavenderUID: 2350207

怎么都没人顶......UP一下.

豆豆～UID: 2378384

2.16星期六。。。咪有60s science啊

豆豆～UID: 2378384

Life's U-Shaped Path of Happiness

Hitting your mid forties? Chances are you’re feeling down. But don’t hang your head, you’re just at the bottom of life’s ‘U’ shaped path of happiness. You might not see it from here, but things are looking up. A study in the journal Social Science and Medicine says mid-life malaise is part of being human. Offering proof that misery loves company, researchers found that millions of people from 74 different countries followed similar life paths. They moved from youthful happiness toward mid-life depressions, then back to happiness in their golden years. Earlier studies suggested psychological wellbeing was consistent throughout life. But this report says, from Azerbaijan to Zimbabwe, there’s no getting around that mid-life crisis.

Regardless of cultural differences, financial success or marital status, a period of depression settles over our forties. But our late fifties, we cheer back up. Researchers speculate that, as we get older, unrealistic expectations are tempered by reality. In other words, we learn to expect less from life. But, they say, a happier possibility is that we just get better at counting our blessings.

[ 本帖最后由 豆豆～ 于 2008-2-7 23:29 编辑 ]

gjz-gjzUID: 2378122

谢谢分享,坚持每天听

豆豆～UID: 2378384

Harnessing Power Wasted While Walking

Last month, the journal Science reported that a Swedish company was planning on using the body heat generated by commuters in a Stockholm train station to warm a nearby office building. If that sounds too…personal, they’re not the only ones thinking about ways to reuse wasted energy. A team of scientists from Ann Arbor, Pittsburgh and British Columbia have come up with a way to tap pedestrian power. They’ve created a device, which straps onto your knees, that can harvest energy from your stride the same way hybrid electric vehicles recycle power during braking.

Their report, which appears in the February 8 issue of Science, shows that walkers can generate about five watts of power without so much as breaking a sweat. That’s enough energy to run 10 cell phones or two computers at once, which could be good news for people who live in countries where access to electricity is spotty. The bad news is: the device could enable commuters to talk on the phone, listen to music, email their friends, play video games, check their stock quotes, and photograph themselves doing it, just by pacing back and forth waiting for their morning latte.  We beseech them not to—on  bended knee.

[ 本帖最后由 豆豆～ 于 2008-2-8 16:17 编辑 ]

gjz-gjzUID: 2378122

谢谢~~~