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[阅读小分队] 【Native Speaker每日综合训练—30系列】【30-08】科技

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发表于 2014-1-6 22:25:38 | 显示全部楼层 |阅读模式
Official Weibo: http://weibo.com/u/3476904471
大家好,还记得年末总结畔的科技文TOP 25吗,今天继续围观排名8和11的两篇
这两篇都是、又是、再一次、很多次关于baby的科学文 again again again and again~


Part I:Speaker

The Biggest Stories on Earth
David Biello looks back at the big environmental stories of the year covered on 60-Second Earth
[Rephrase 1]

[Dialog, 1:28]


Transcript hided

   What were the biggest stories on this earth podcast in 2013? I'm glad I asked:

We had the new rush for oil in the Arctic and other extreme places. Scientists offered new hope for bringing back extinct species like the passenger pigeon. And the new Pope Francis began talking up the environment, just like his saintly namesake.

Plastic litter got just about everywhere, while ants stowed away on ships to spread around the globe. Cities turn out to follow mathematical rules and our dandruff shampoo turns out to be poisoning plants. The best places to put wind or solar power are not necessarily the windiest or the sunniest but rather wherever they cut the most pollution.

Junk piles of old gadgets, TVs and other electronics remain a large and growing problem. And life persists almost everywhere we look on this planet, from the skies above to the deepest spots in the oceans.

But the biggest story of 2013 is an ongoing one: climate change. This past May, concentrations of CO2 in the atmosphere reached levels never before experienced by us, Homo sapiens. We're living in a whole new world. In this new year of 2014 and beyond.

—David Biello

Source: Scientific American
http://www.scientificamerican.com/podcast/episode.cfm?id=the-biggest-stories-on-earth-13-12-29

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 楼主| 发表于 2014-1-6 22:25:39 | 显示全部楼层
Part II:Speed
  

Year in Review: Language learning starts before birth
by Laura Sanders 10:00am, December 23, 2013 Magazine issue: December 28, 2013

[Time 2]
Parents are usually careful to watch their language around young children. Maybe parents-to-be ought to watch what they say, too. Not only do babies slurp up language skills in the first few years of life, but new research also suggests that this precocious language learning starts in the womb.

In the later months of pregnancy, fetuses can detect and remember songs, native vowel sounds and entire words. These surprisingly sophisticated linguistic feats offer a new perspective on early learning. The results also raise the possibility of taking steps during pregnancy to help babies at risk for language problems.

Toward the end of pregnancy, sounds from the outside world can seep into a developing fetus’s brain. Young babies show a clear preference for the sounds of their mothers’ voices, familiar nursery rhymes and soothing lullabies, for instance. Four months after birth, babies who had heard “Twinkle, Twinkle Little Star” while in the womb remembered and recognized the lullaby, cognitive neuroscientist Eino Partanen of the University of Helsinki and colleagues reported October 30 in PLOS ONE. The music doesn’t need to be baby-friendly, either. An earlier study found that babies born to mothers who had been hooked on a soap opera during pregnancy stopped fussing when the theme song started.

The findings extend the boundaries of what and when fetuses can learn. “We just don’t know the limits,” says psychologist Christine Moon of Pacific Lutheran University in Tacoma, Wash., who coauthored one of the new studies.
[244 words]


[Time 3]
Moon and her colleagues found that fetuses learn to discern native vowel sounds from foreign ones. To catch babies before they had time to familiarize themselves with the outside world, the scientists studied Swedish and U.S. babies seven to 75 hours after birth. These newborns were hooked up to special pacifiers that detected sucking rates. The more sucking, the more unusual a sound was, the researchers reasoned.

Babies sucked more for foreign vowel sounds, Moon and her team reported in Acta Pædiatrica (SN: 2/9/13, p. 9), showing that the babies had grown familiar with native vowels while in the womb.

Fetal learning doesn’t stop at vowels. Fetuses grew familiar with an entire made-up word, Partanen and colleagues reported in the Proceedings of the National Academy of Sciences (SN: 10/5/13, p. 15). In the last trimester, pregnant women blasted a recording of a researcher saying a fake word. Testing the babies’ brain responses with electrodes soon after birth, a neural signature of familiarity called the mismatch response showed up in those who had heard the word during gestation. These babies’ brains showed a big neural response when a syllable in the fake word was pronounced differently, suggesting that the normal version was familiar.

Such knowledge about fetal learning could one day lead to specially designed audio tracks that could boost language skills in fetuses at risk for language impairments such as dyslexia. Carefully crafted auditory cues played during pregnancy might stimulate the growing brain in a way that aids language skills.

The new work also draws attention to the importance of the acoustical environment for a fetus. Because the fetal brain is sensitive to sounds, constant exposure to a noisy environment might be problematic. Loud, unstructured noise could mask this early language acquisition and interfere with normal brain development.
[298 words]


Source:Science News
https://www.sciencenews.org/article/year-review-language-learning-starts-birth


Year in Review: Putting kids at risks
by Nathan Seppa 6:30am, December 24, 2013  
[Time 4]

The tenet that “doctor knows best” is taking a beating. U.S. parents increasingly are delaying their children’s vaccinations, basing such decisions on sources other than their pediatricians, researchers reported in 2013. Nearly half of U.S. babies born from 2004 to 2008 fell behind on at least one vaccination (SN: 2/23/13, p. 11).

Many parents cite concerns about the 23 shots babies now get in the first two years of life, says epidemiologist Jason Glanz of Kaiser Permanente in Denver. “You can see the parents’ perspective,” he says.

Vaccination schedules have been fine-tuned to protect children at a vulnerable age, doctors point out, but they can’t force the issue. Glanz and colleagues examined the records of 320,000 kids under age 2, finding that 49 percent got at least one shot more than a month late. That proportion has been rising for five years. Overall, 20 percent of kids spent more than 100 days unprotected against a disease because of late shots.

Vaccine fears arose over a decade ago when some people blamed shots for health problems, claims later shown to be unfounded. A 2013 study debunked more recent claims that vaccination can cause Guillain-Barré syndrome, a nerve-damaging disorder. A review of 3 million people in the Kaiser database showed no connection between the disorder and getting any vaccine (SN: 7/27/13, p. 16).

Putting off shots might be grounded in parents’ desire to make safe choices for their child, say University of Pennsylvania physicians Kristen Feemster and Paul Offit, writing in JAMA Pediatrics in October. But in reality, “it offers no clear benefit,” they say. Such parents may be well-meaning, but in this case doctors really may know best.
[277 words]


Source:Science News
https://www.sciencenews.org/article/year-review-putting-kids-risk

Google search fails to find any sign of time travelers
by Tom Siegfried 6:08pm, January 3, 2014  

[Time 5]
Time travel is an extraordinarily popular pastime. Or at least it would be if it were possible. Evidently it isn’t, though; as Stephen Hawking once observed, we never encounter any tourists from the future.

To make his point, Hawking once held a party for time travelers from the future, but nobody came. Of course, he didn’t post the invitation  until after the date of the event, in order that only people from the future would know about it.

So for the time being, time travel remains fictional. But it has been fictional for a long time. Decades before Doctor Who, H.G. Wells wrote his famous book The Time Machine (1895). More than a century and a half before that, an Irish writer named Samuel Madden published (anonymously) Memoirs of the Twentieth Century (1733). Madden declared that he had the “honor and misfortune” to be the first historian to depart from writing “the accounts of past Ac­tions and Times” and “dar’d to enter by the help of an infallible Guide, into the dark Caverns of Futurity, and discover the Secrets of Ages yet to come.” Those secrets had been revealed to Madden by a time traveler who had appeared one night like an angel, leaving him a series of volumes containing state papers from the reign of George VI.

A little over a century later, Edgar Allan Poe, in a prose poem titled Eureka, mentioned a letter, found in a bottle, dated 2848. Its writer complained about ancient scientists’ devotion to deductive and inductive reasoning, when in fact, science “makes its most important advances … by seemingly intuitive leaps.”

So maybe there’s a flaw in Hawking’s experiment, based as it was on deductive logic. After all, it’s easy to come up with explanations for why his invitation went unnoticed. Maybe by the time that time travel is invented, everybody has forgotten about Hawking, or YouTube has gone out of business.

On the other hand, perhaps time travelers just want to keep their existence a secret. But even highly trained supersecret time travel agents might slip up occasionally and accidentally reveal their future origins. Like for instance, by typing Comet ISON into Google before that comet had even been discovered. But even if they did, who would ever know?

Well, Robert Nemiroff and Teresa Wilson of the Michigan Technological University physics department might. Comet ISON was discovered in 2012, so it is very unlikely that anyone from the present would have searched online for it, or tweeted about it, before then. Nemiroff and Wilson reasoned that searching the Internet for pre-2012 mentions of Comet ISON might turn up evidence of a time traveler.
[441 words]


[Time 6]
It’s not easy to conduct such searches, and the results can be misleading. Old web pages often contain new ads, for instance. And while it’s possible to search a site that records Google search queries, that site only reports on terms with a high search volume, so a single request for Comet ISON info would not have been recorded.

Twitter, though, can be searched comprehensively. But Nemiroff and Wilson found no evidence for any tweeting about Comet ISON before it was discovered. They tried various other searches of other databases, also without success. They also tried searching for any mention of Pope Francis before he became pope, just in case time travelers aren’t interested in astronomy. Still no luck.

But unlike Hawking, Nemiroff and Wilson do not conclude that time travelers therefore do not exist.

“Although the negative results reported here may indicate that time travelers from the future are not among us and cannot communicate with us over the modern day Internet, they are by no means proof,” Nemiroff and Wilson write in their paper.

After all, deductions about time travel are vulnerable to the flaws afflicting all deductions — such as relying on premises that might not be true. Poe’s letter writer from 2848 commented on this point. He observed that ancient logical reasoning based on deduction from “self-evident” truths, or axioms, is bogus, as there is no such thing as a self-evident truth. Even 19th century scientists should have realized that, the letter writer pointed out, as some supposedly self-evident truths (such as, “a thing cannot act where it is not”) had already been shown to be wrong.

Poe’s letter writer then commented that perhaps one “palpable truism” had in fact been identified, by a 19th century logician named Mill: “‘Ability or inability to conceive … is in no case to be received as a criterion of axiomatic truth.”

Surely, many false things have been conceived (unicorns), and many inconceivable things have turned out to be true (USA beats Soviets in ice hockey, 1980). So the ability of many writers and even scientists to conceive of time travel does not prove that it is true. But the inability of many others to conceive of time travel does not mean it is false.
[375 words]

Source:Science News
https://www.sciencenews.org/blog/context/google-search-fails-find-any-sign-time-travelers

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 楼主| 发表于 2014-1-6 22:25:40 | 显示全部楼层
Part III: Obstacle

Five Reasons Why You Should Probably Stop Using Antibacterial Soap
Posted By: Joseph Stromberg

[Paraphrase 7]
A few weeks ago, the FDA announced a bold new position on antibacterial soap: Manufacturers have to show that it’s both safe and more effective than simply washing with conventional soap and water, or they have to take it off the shelves in the next few years.

About 75 percent of liquid antibacterial soaps and 30 percent of bars use a chemical called triclosan as an active ingredient. The drug, which was originally used strictly in hospital settings, was adopted by manufacturers of soaps and other home products during the 1990s, eventually ballooning into an industry that’s worth an estimated $1 billion. Apart from soap, we’ve begun putting the chemical in wipes, hand gels, cutting boards, mattress pads and all sorts of home items as we try our best to eradicate any trace of bacteria from our environment.

But triclosan’s use in home over-the-counter products was never fully evaluated by the FDA—incredibly, the agency was ordered to produce a set of guidelines for the use of triclosan in home products way back in 1972, but only published its final draft on December 16 of last year. Their report, the product of decades of research, notes that the costs of antibacterial soaps likely outweigh the benefits, and forces manufacturers to prove otherwise.

Bottom line: Manufacturers have until 2016 to do so, or pull their products from the shelves. But we’re here to tell you that you probably shouldn’t wait that long to stop using antibacterial soaps. Here’s our rundown of five reasons why that’s the case:

1. Antibacterial soaps are no more effective than conventional soap and water. As mentioned in the announcement, 42 years of FDA research—along with countless independent studies—have produced no evidence that triclosan provides any health benefits as compared to old-fashioned soap.

“I suspect there are a lot of consumers who assume that by using an antibacterial soap product, they are protecting themselves from illness, protecting their families,” Sandra Kweder, deputy director of the FDA’s drug center, told the AP. “But we don’t have any evidence that that is really the case over simple soap and water.”

Manufacturers say they do have evidence of triclosan’s superior efficacy, but the disagreement stems from the use of different sorts of testing methods. Tests that strictly measure the number of bacteria on a person’s hands after use do show that soaps with triclosan kill slightly more bacteria than conventional ones.

But the FDA wants data that show that this translates into an actual clinical benefit, such as reduced infection rates. So far, analyses of the health benefits don’t show any evidence that triclosan can reduce the transmission of respiratory or gastrointestinal infections. This might be due to the fact that antibacterial soaps specifically target bacteria, but not the viruses that cause the majority of seasonal colds and flus.

2. Antibacterial soaps have the potential to create antibiotic-resistant bacteria. The reason that the FDA is making manufacturers prove these products’ efficacy is because of a range of possible health risks associated with triclosan, and bacterial resistance is first on the list.

Heavy use of antibiotics can cause resistance, which results from a small subset of a bacteria population with a random mutation that allows it to survive exposure to the chemical. If that chemical is used frequently enough, it’ll kill other bacteria, but allow this resistant subset to proliferate. If this happens on a broad enough scale, it can essentially render that chemical useless against the strain of bacteria.

This is currently a huge problem in medicine—the World Health Organization calls it a “threat to global health security.” Some bacteria species (most notably, MRSA) have even acquired resistance to several different drugs, complicating efforts to control and treat infections as they spread. Health officials say that further research is needed before we can say that triclosan is fueling resistance, but several studies have hinted at the possibility.

3. The soaps could act as endocrine disruptors.  A number of studies have found that, in rats, frogs and other animals, triclosan appears to interfere with the body’s regulation of thyroid hormone, perhaps because it chemically resembles the hormone closely enough that it can bind to its receptor sites. If this is the case in humans, too, there are worries that it could lead to problems such as infertility, artificially-advanced early puberty, obesity and cancer.

These same effects haven’t yet been found in humans, but the FDA calls the animal studies “a concern”—and notes that, given the minimal benefits of long-term triclosan use, it’s likely not worth the risk.

4. The soaps might lead to other health problems, too. There’s evidence that children with prolonged exposure to triclosan have a higher chance of developing allergies, including peanut allergies and hay fever. Scientists speculate that this could be a result of reduced exposure to bacteria, which could be necessary for proper immune system functioning and development.

Another study found evidence that triclosan interfered with muscle contractions in human cells, as well as muscle activity in live mice and minnows. This is especially concerning given other findings that the chemical can penetrate the skin and enter the bloodstream more easily than originally thought. A 2008 survey, for instance, found triclosan in the urine of 75 percent of people tested.

5. Antibacterial soaps are bad for the environment. When we use a lot of triclosan in soap, that means a lot of triclosan gets flushed down the drain. Research has shown that small quantities of the chemical can persist after treatment at sewage plants, and as a result, USGS surveys have frequently detected it in streams and other bodies of water. Once in the environment, triclosan can disrupt algae’s ability to perform photosynthesis.

The chemical is also fat-soluble—meaning that it builds up in fatty tissues—so scientists are concerned that it can biomagnify, appearing at greater levels in the tissues of animals higher up the food chain, as the triclosan of all the plants and animals below them is concentrated. Evidence of this possibility was turned up in 2009, when surveys of bottlenose dolphins off the coast of South Carolina and Florida found concerning levels of the chemical in their blood.

What Should You Do?

If you’re planning on giving up antibacterial soap—like Johnson & Johnson, Kaiser Permanente and several other companies have recently done—you have a couple options.

One is a non-antibiotic hand sanitizer, like Purell, which don’t contain any triclosan and simply kill both bacteria and viruses with good old-fashioned alcohol. Because the effectiveness of hand-washing depends on how long you wash for, a quick squirt of sanitizer might be more effective when time is limited.

Outside of hospitals, though, the CDC recommends the time-tested advice you probably heard as a child: wash your hands with conventional soap and water. That’s because while alcohol from hand sanitizer kills bacteria, it doesn’t actually remove dirt or anything else you may have touched. But a simple hand wash should do the trick. The water doesn’t need to be hot, and you’re best off scrubbing for about 30 seconds to get properly clean.
[1184 words]

Source:Smithsonian
http://blogs.smithsonianmag.com/science/2014/01/five-reasons-why-you-should-probably-stop-using-antibacterial-soap/

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发表于 2014-1-6 22:26:13 | 显示全部楼层
占位先!

Speaker
Biggest stories of 2013 :new hope for bringing back extinct species; cities turn out to follow mathematical rules; dandruff shampoo turns out to be poisoning plants; the best places to put wind or solar power are not either the windiest or the sunniest, but rather wherever they cut the most pollution; ongoing climate change is the biggest story.
Speed
Time2  1:55
Parents watch their languages around young children because babies develop language skills in the first few years of life. However, new research indicates that language learning starts in the womb. Fetuses can remember songs, native vowel sounds, and entire words in the later months of pregnancy, indicating the possibility of helping babies at risk for language problems. Then the author lists some findings of the precocious language learning in the womb.
Time3  2:25
Moon and her colleagues found that fetuses learn to discern native vowel sounds from foreign ones. They used special pacifiers that detected sucking rates for an experiment and found that babies sucked more for foreign vowel sounds because they had grown familiar with native ones in the womb.
Fetuses also grew familiar with an entire made-up word, showing a big neural response to a syllable pronounced differently. Such knowledge shows that carefully crafted auditory cues played during pregnancy might aid language skills. A noisy environment might be problematic to the brain development and early language acquisition of fetuses as the fetal brain is sensitive to sounds.
Time4  2:06
U.S. parents are delaying their children's vaccine. Parents concern about the 23 shots babies get in the first two years of life. Thus, 20% of kids spent more than 100 days unprotected against diseases. In fact, there is no connection between disorders and getting vaccines. Though such parents may be well-meaning, doctors really may know best in this case.
Time5  2:47
Hawking's experiment shows that time travelers don't exist. The author states that time travel has been fictional for a long time and gives some examples. The author argues that Hawking's experiment is flawed as it's based on deductive logic, and that it's easy to come up with explanations for why his experiment went unnoticed. N and W reason that searching the Internet for pre-2012 mentions of Comet ISON discovered in 2012 might turn up evidence of a time traveler.
Time6  2:35
However, conducting such searches on web pages is not easy, and the results can be misleading. Though N and W tried many ways to search for Comet ISON before it was discovered and found nothing, they do not conclude that time travelers therefore do not exist. The ability of scientists and writers to conceive of time travel does not prove that it is true, and the inability of other people to conceive of time travel does not mean it is false.

Obstacle  8:26
We put lots of chemicals in home items such as hand gels and wipes to kill bacteria. The agency's report shows that the costs of antibacterial soaps likely outweigh the benefits. Manufacturers have until 2016 to prove that's not the case, or they will need to pull their products from shelves. But we shouldn't wait that long to stop using antibacterial soaps for five reasons listed below:
1. Antibacterial soaps are no more effective than conventional soaps and water and do not provide any health benefits. Antibacterial soaps are targeted at bacteria, not the viruses that cause the majority of seasonal flus and colds.
2. Antibacterial soaps have the potential to create antibiotic-resistant bacteria. Some bacteria species have acquired resistance to several different drugs, making a huge problem in global health security.
3. Studies of animals have shown that triclosan interfere with the body's regulation of thyroid hormone. If this is the case in humans, it could lead to problems such as infertility, early puberty, obesity, and cancer.
4. Antibacterial soaps might lead to other health problems. Children with prolonged exposure to triclosan have a higher tendency to develop allergies because of reduced exposure to bacteria. A study shows that triclosan interfere with muscle contractions in human cells and can penetrate skins and enter the bloodstream. Triclosan were found in the urine of 75% of people tested.
5. Antibacterial soaps are bad for the environment. For example, they can disrupt algae's ability to perform photosynthesis.
卧槽好可怕!!TAT

A couple options:
1. Non-antibiotic hand sanitizer (Johnson & Johnson, Purell, and Kaiser Permanente)
2. Conventional soap and water
发表于 2014-1-6 22:37:51 | 显示全部楼层
thx, 妖姐还是一如既往的baby控啊~

Speaker
important environmental findings or events in 2013 & the biggest ongoing one is Climate Change.

Speed:
1'36''
1'46''
1'30''
2'54''
2'15''

Obstacle-7'03''
MI: antibacterial soap has some side effects and we should stop using it any more.
>antibacterial soap has a chemical T, which is strictly used in hospital.
>ingredient T has been used widely and the costs of antibacterial soap outweigh the benefits.
>five reasons to ban the use of antibacterial soap:
1) there is no evidence to show that antibacterial soap has more clinical benefits than simple soap.
2) Heavy use of antibiotics like T can lead bacteria easier to mutate into antibiotic-resistant bacteria and to proliferate, which is a seriuos problem in medicine.
3) studies show that this kind of soap can also disrupt animals endocrine.
4) other hidden health problems.
5) chemical contamination to the environment.
>we have a couple of options to reduce bacteria:
1) using non-antibiotic hand sanitizer. the alcohol within it can eliminate bacteria.
2) washing ur hands with conventional soap and water frequently.  
发表于 2014-1-6 22:40:45 | 显示全部楼层
占~~~~~~~


Speaker:Introduce several stories happened in science field.The biggest sotry is the climate change,and it will going on in 2014.

01:17
Baby can learn language when it is in the womb.

01:51
Experiment shows that baby can suck foreign sound out of the womb and be familiar with these sound,which can help them in language learning.

01:37
Delay the shot of vaccine may put children in risk,even the aim of the parents is good.

02:21
Time-travller is thought to be fictional.No time-traveler was found.Tow scientists use google search to find whether they exist.

01:55
Althought the result of experiment shows that there is no time traveler,this two scientists still believe they exist.

05:46
Main Idea:5 reasons to give up antibacterial soap
The FDA recently asks manufacturers to take antibacterial soap off the shelves unless they can prove the soap is effective.
The main chemical issue in soap is triclosan whose costs outweigh benefits.
5 reasons:
1 antibacterial soap is no more effective than conventional soap and water.Manufacturers have nno proof to prove its effect.
2 antibacterial soap may creat antibiotic-resistant bacteria potentially.
3 antibacterial soap asct as endocrine disruptors.It can affect animals' hormone.Although no example about human before,it still has risks.
4 antibacterial soap can creat other health problems.
5 antibacterial soap is bad for enviornment.
People have other two choices besides antibacterial soap.
1 non-antibiotic hand sanitizer 2 wash your hands with conventional soap and water
发表于 2014-1-6 23:35:02 | 显示全部楼层

掌管 1        00:02:32.66        00:02:32.66


Baby learns language not only in the first few years of life, but also when it is in the womb
掌管 2        00:03:39.89        00:06:12.55
A experiment that test the current when the baby listen to some words proves that the baby is familiar with those words that were said during pregnency.
掌管 3        00:02:57.49        00:09:10.05

In the U.S, many parents are delaying their children's vaccinations, putting their kids at risks.

掌管 4        00:04:43.32        00:13:53.38
In Hawkings's thery, time travel is impossible. Time traveler is appered only in the fiction. But something strange happened, somebody searched the comet ISON even before it was named in 2012.

掌管 5        00:03:57.44        00:17:50.82
All the events that seem to be involve some time travelers prove to be not true.
发表于 2014-1-7 00:54:23 | 显示全部楼层
1:49
Many parents take account into their babies language at the first years. But in the pregnancy,  fetuses can learn and be affected by the language (music), when a mother listen a style of music when she was in pregnancy, after baby birth, he would be hooked at this style.
When and what the fetuses can learn is an extent study.
2:08
The later survey shows that fetuses can discerned the native vowel sounds from foreign ones, that is because in the pregnancy, the native vowel effect them ,and after birth ,these babies can response with different sounds
Also brains of fetuses are sensitive ,we should protect them.
1:44
Many parents delay their children’s vaccinations and in the recent 5 years the risk of the children without vaccinations rose up. So now advocating parents to follow doctor is necessary,although sometimes vaccination is not clear benefit,doctor knows better.
2:34
About time traveler.many people imaged it ,eg:Howking.although it is a fictional one,but it has already existed for a long time.
Two flaws in Howking’s thought
Recently a comet ISON may be a time traveler.(这篇,提到了ISON,去年11月底它掠过近日点,虽然很多天文学者认为它是飞蛾扑火,但是它走出了近日点,但是最后越来越暗,貌似最近已经观察不到,可以已经成为灰烬了。去年年底我一直在关注它,曾经它是我考GMAT的一个鼓励吧,今天读到觉得有点伤感,但是还是GMAT还是继续努力~~~)
02:02
Another thought, time traveler is not exist,from the Poe’s letter, “a thing cannot act where it is not”.many false things evident the time traveler is not exist,but many scientists still believed it exist.

5:37
Five reasons to avoid Antibacterial Soap
1 it is no more better than effective than conventional soap and water
2 it may produce antibiotic-resistant bacteria
3 it may act as endocrine disruptors
4 it has other health risks
5 it is bad for environment
To avoid Antibacterial Soap, you should do as others :using conventional water and soap, although not all the bacteria can be removed, you can use some scientific approach to clean your hand.
发表于 2014-1-7 00:58:12 | 显示全部楼层
太感谢了!!刚刚生了个娃。对这类文章很感兴趣

2:1'44:244
-baby learn language even in the womb
-how baby learn in the early months of pregnancy.
how baby learns in the later months of pregnancy.

3:2‘30:298
-Baby can differentiate native vowels and foreign language.
-baby can responds when words are pronounced in unusual way
-special audio track can be produced to help baby with language problem
-noisy environment may impair baby's language ability.

4:1'46:277
-parents are tend to delay the schedule of vaccination for their babies due to health concern.
-we should trust doctors.

5:3'17:441
-discussing about the existing of time travelers.

6:3:375
-list of things that prove time travelers do not exist

7:8'56:1184
-introduction about antibiotic soap
5 reasons why we should stop using antibiotic soap
1:no correlation between using antibiotic soap and reducing illness
2:increase bacterial resistant
3:The soaps could act as endocrine disruptors.
4: May increase other illness
5:environment pollution
-The better way to keep clean.
发表于 2014-1-7 08:02:04 | 显示全部楼层
谢谢 站个坑先~~

1'40 according to new research, fetuses can learn in the later months of pregnancy.
2'25 evidence: research on 7-75 hrs after born, sound- neural response. familiar& abnormal
1'50 baby shots- parents delay vaccination shots may put babies at risk.
3'07 the possibility of time traveler, time travel in literature&hawking's party. how someone googled ISON might be time traveler.
2'44 thought the research results are negative, XX & XX do not decline the fact that time travel might be true. the premise might be false. self evident.
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