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婧榭居士UID: 2852563

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8/11：Almost a Million Years Added for Earliest Human Ancestor Stone Tool Use and Meat Eating

There’s nothing like a good steak<读音>. And our Australopithecus afarensis ancestors apparently felt the same way. Because new discoveries from Ethiopia show that what was likely the species of the famous fossil Lucy used stone tools to butcher meat from big mammals—about 3.4 million years ago. That’s a million years earlier than our best previous evidence for human ancestor stone tool use and meat eating. The finding appears on the cover of the journal Nature.

The research team found two fossil bones with cut and scrape marks, signs of meat carving. One bone was a piece of rib from a cow-sized mammal; the other, a leg bone fragment from a mammal the size of a goat. The bones also had percussion marks, sustained while Lucy’s friends smashed the bones to get at the marrow.

It looks like the ancient tool users collected stones that happened to have shapes conducive to butchering, the way kids select particular stones with good potential to skip on (no “the ”)water. But future expeditions will look for evidence for any attempts at shaping stones into kitchen utensils. Because after 3.4 million years, Lucy and her fellow afarensis keep surprising us.

Expedition

n. 1. 远征; 探险; 考察2. 迅速, 动作敏捷3. 远征队；探险队；考察队4. （短途的）旅行，出行
Utensil

n. 1. 器具, 用具, 器皿
Australopithecus n. 1. 南(方古)猿

Afarensis南方古猿阿法种
（南方古猿非洲种 africanus。。。。傍人属 Paranthropus）

Ethiopia 埃塞俄比亚

Butcher

n. 1. 屠夫, 肉商, 肉贩2. 杀人狂, 刽子手

vt. 1. 屠宰, 残杀2. 弄砸；糟蹋

Scrape
vt. & vi. 1. 刮, 擦2. 艰难取得，设法得到；挖洞；把头发拢在后面

vt. 1. 擦伤2. 设法得到

n. 1. 刮, 擦, 刮擦声2. 擦痕, 擦伤3. 困境, 麻烦

Rib

n. 1. 肋骨, 排骨2. 肋骨状的东西; 骨架3. （船或屋顶等的）肋拱，肋材 4. （织物的）凸条花纹，罗纹
Percussion n. 1. 打击(乐器组)n. 1. 打击乐器演奏者2. <音>打击乐器3. <军>击发装置
Smash
n. 1. 破碎(声)2. 猛击; 猛撞3. 大成功; 极为成功的新书[新戏, 电影等]4. 撞车5. 高压球；扣球6. 十分走红的歌曲（或电影、戏剧）

vt. & vi. 1. 打碎; 捣烂

vt. 1. 重击; 打败2. 捣毁；打败；粉碎；使结束3. 撞毁（车辆）4. 打高压球；扣球

Marrow

n. 1. 骨髓;脊髓;髓2. 吓坏某人3. 西葫芦




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The bones also had percussion marks 这句是什么意思捏？=。=。。。。

longxue26UID: 2687755

这篇 听得我...想砍人!!! :@

Ah~ sleep, there's nothing better than a nice, long, uninterrupted...  I can't sleep when there's...
but do you ever noitce -- Noise doesn't wake everyone. Now scientists have a better idea why.
Because sound sleepers show a certain brain rhythm when they doze, findings published in the journal current biology.
To study the brain waves of a good night's sleep scientist invited volunteers to snooze <这单词发音真是跟印象里不一样了>in the lab. While the subjects caught some Zs<什么玩意儿啊!:@>,the researchers monitored their brain activity. They then subjected the sleepers to ... or ...and they found those who were to slumber straight  through all the... showed more short bursts<短脉冲> of faster brain waves. This activity, the scientist say, is the brain's way of blocking out the.. and the... while you're trying to rest. The scientists don't yet <怎么听怎么像get>know of any way to boost those sleep saving brain ways so untill then shut the door,make sure the late shows on a timer and try to have a sweet dream.

桔子susanUID: 2754084

8.12
听错了的
听漏了的
拼写错误
Ahhh, sleep. There’s nothing better than a nice, long, uninterrupted [LOUD NOISE]. Awwgh. I can’t sleep when there’s [NOISE]. But d’ya ever notice: noise [NOISE] doesn’t wake everyone. Now scientists have a better idea why. Because sound sleepers show a certain brain rhythm when they doze, findings published in the journal Current Biology.
To study the brain waves of a good night’s sleep, scientists invited volunteers to snooze in the lab. While the subjects caught some Zs, the researchers monitored their brain activity. They then subjected the sleepers to [NOISE] or [NOISE]. And they found that those who were able to slumber straight through all the [NOISE] showed more short bursts of faster brain waves. This activity, the scientists say, is the brain’s way of blocking out the [NOISE] and the [NOISE] while you’re trying to rest.
The scientists don’t yet know of any way to boost those sleep-saving brain waves. So until then, shut the door [DOOR SHUTTING], make sure the late show’s on a timer [TV SOUND], and try to have sweet dreams.

各种瞌睡：doze,snooze,slumber
short burst 短脉冲
这篇各种NOISE，Ahhh:mad: ，还有那个Zs，想了半天应该是Zzzz:sleepy: 吧>.<

longxue26UID: 2687755

8-13-Pour champagne on the side for Better Flavor

You don't have to be a champagne buff<香槟狂热者> to want the best flavor from your bubbly香槟,冒泡的<听成了bubble leak>, so the secret to a perfect glass? It's all in the pour, accoring to a study in the journal of agriculture and food chemistry.

A key player in champagne's taste is its<听成了 it is>dissolved carbon dioxide as that CO2 bubbles out it releases aroma and provides that<听成了at>tingly<引起刺激的 刺痛感的>bite<听成了buy>. As soon as you uncork<拔塞子>a bottle, CO2 starts to diffusing from the champagne into the air. But pooring it speeds up that process by increasing surface areas and turbulence<这里应该指的是空气流动>.

Chemists, French ones, of course, poured champagen in the fluted有凹槽的<怎么也没拼写对 奇了怪了:L>glasses two ways. The traditional way, straight down splashing<我就知道我听成brush不会对的>off the bottom and the beer way onto<sounds like under> the side of a tilted <听起来像it till the> glass. Then they measured the CO2 lost during the poor.

At 40 degrees Fahrenheit, champagne poured traditionally quickly losed a qurater of  its carbon dioxide but pouring down the side caused only half the gas loss. closer to the room temperature the drink became flat fast whaterver way you pour, so if you want you champagne, keep it cold and pour that bubbly like it's Bud这里是啥意思啊?:L<听成了butt>.

红色--拼写错误
粉色--听遗漏的
绿色--单词

婧榭居士UID: 2852563

为虾米scientificAmerican上面的下不来了。。

jiang08UID: 2391146

Pour Champagne on the Side for Better Flavor

http://www.scientificamerican.com/podcast/podcast.mp3?e_id=6C0F85FF-D03E-41FF-89F96F0B5FA515F4

原文：
You don't have to be a champagne buff to want the best flavor fromyour bubbly. So the secret to a perfect glass? It's all in the pour,according to a study in the Journal of Agricultural and Food Chemistry.
A key player in champagne's taste is its dissolved carbon dioxide.As that CO2 bubbles out, it releases aroma, and provides that tinglybite. As soon as you uncork a bottle, CO2 starts diffusing from thechampagne into the air. But pouring it speeds up that process, byincreasing surface area and turbulence.
Chemists—French ones, of course—poured champagne into fluted glassestwo ways. The traditional way, straight down, splashing off thebottom—and the beer way, onto the side of a tilted glass. Then theymeasured the CO2 lost during the pour.
At 40 degrees Fahrenheit, champagne poured traditionally quicklylost a quarter of its carbon dioxide. But pouring down the side causedonly half the gas loss. Closer to room temperature, the drink becameflat fast, whatever way you pour. So if you want your champagne trèsbon, keep it cold. And pour that bubbly like it’s Bud.

jiang08UID: 2391146

终于会嵌入了  我泪流满面。。。。

happyfaith2008UID: 2709856

391# jiang08
呵呵辛苦啦~~我一直觉得这是高科技好神奇，我自己学会的时候高兴了好几天。(*^__^*) 嘻嘻

capricUID: 2331822

果断加入~~~
然后明天再来：）

jiang08UID: 2391146

8/16：Invasive Species Lets Other Species Disrupt Environment

http://www.scientificamerican.com/podcast/podcast.mp3?e_id=7C2629DC-E1A4-D066-861AE3984148ACE9

原文，选中可见：
At Point Reyes National Seashore in Marin County, California, a plant called Tidestrom’s lupine is holding on for dear life. Its survival has been threatened by the appearance of another plant, an invasive species called European beachgrass. So, does the beachgrass simply outcompete the lupines for land and light? Not at all, according to researchers at Washington University in St. Louis.

Tiny deer mice have a taste for the seeds of the lupines. These critters would ordinarily think twice about approaching the plants. Because exposed out on the sand, they’re easy pickings for birds interested in a rodent repast. But the beachgrass provides excellent cover. The mice use the grass to get close enough to pilfer seeds before any hungry birds pilfer the mice. The research appears in the August issue of the journal Ecology.

The information may be useful for a proposed dune restoration project. And the unexpected consequences of the invading species bring to mind this well-known comment by ecologist Aldo Leopold: “To keep every cog and wheel is the first precaution of intelligent tinkering.”

longxue26UID: 2687755

At point reyes national seashore in  marine county California, a plant called tinestrom's Lupin is holding on for dear life. its survivel has been treathened by the appearance of another plant, an invasive species called European beachgrass. So does the beach grass simply outcompete the lupin for land and light? Not at all according to researches at Washington University in St. Louis.

Tiny dear mice have a taste for  the seeds of the lupin. These critters would ordinarily <听成了narrowly> think twice about approaching the plants because exposed out on  the sand they're easy pickings for birds interested in a roden repast. But the beach grass provides excellent cover, the mice use the grass get close enoguh to pilfer seeds before any hungry birds pilfer the mice. The research appears in the August issue of  the journal ecology.

The information may be useful for propsed dune restoration project. And the unexpected consequences of the invading species bring to mind this well-known comment by a collagist of Aldo Leopold. To keep every cog and wheel is the first precaution <听成了percussion>of an intelligent tinkering <听成了takering>.

单词
critter--小生物
cog--齿轮
tinker--修锅炉的那种
repast--就餐
precaution--预防
for dear life --拼死地

这篇到底讲啥啊 有点迷糊呢

tracywlzUID: 2522388

7.1

[谢谢水水，但是不小心发重复啦=。= MUA~——Stefana]
tracywlz 发表于 2010-7-1 11:34

诶。
我就是个悲剧~

FannieHsuUID: 2861996

8.9
Blue whales off the California coast make calls that, sped up 10 times, sound like (sound of two-part call). The original is a wall-rattling frequency too low for us （我听成了first。。。）to hear. Scientists analyzed around 2,500 of those calls, and found that the second part (sound) is nearly identical in pitch every time from each whale: 16 hertz,or four octaves below middle C. And the slight variations in frequency that do exist are only a tenth of the difference between a C and a C sharp. Those findings appear online in the Journal of the Acoustical Society of America.

The researchers don't know how many different individual whales they caught singing, or why even they sing at all. But past studies suggest only blue whale males make calls like this. So the investigators speculate that males might synchronize to a single common pitch as a sort of mating beacon.!

Thanks to the Doppler effect, females swimming towards a male would hear a slightly higher pitch; swimming away, a lower-pitched moan. Serenade out of tune—you might be swimming solo tonight.

longxue26UID: 2687755

8-18

Shakespeare noted that a worm may eat a king after that king is dead. Sadly parasitic worms infect people who are still alive, especially kids. Public health advocates estimate that a third of people on Earth are infected with parasitic worms called helminthes, particularly in poor areas with inadequate sanitation.

helminthes health but also interfere with nutrition and even academic advancement. so the London school of Hygiene and tropical medicine with the partnership for child development at Imperial college London launched what is called-- this wormy world. It's an atlas of the distribution and prevalence of helminthes diseases, including roundworm, hook worm and whipworm.

It's often easy to control the parasites with cheap treatments but resources get wasted because deworming program are targetted at the wrong communities. The atlas should help the eradication fight by letting health officials know where the problem areas are but scientitst have been collecting data for the past decade.

Their first map focuses on Africa where worm infestations are worst.  Maps for the rest of the world will be out by the end of 2010 providing a complete picture of this wormy world of ours and a new tool to tackle it.