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• 我们需要多少睡眠

  2008-7-13

  睡眠与食物和水一样，对我们的精神健康和身体健康至关重要。如果不睡觉，人就会像喝醉酒一样，头重脚轻、反应迟钝、手眼不协调，决策困难、判断失误，甚至连讲话都理不清思路。占据我们生命1/3时间的睡眠对精神、情感、身体健康、免疫力的提高和人体细胞生长、修复起着重要的作用，睡眠时大脑细胞完全休息，大脑功能得到充分保养和恢复。那么，我们到底需要多少睡眠呢？是不是睡得越长越好呢？这篇文章将给您解答这些问题。

  The amount of sleep an individual requires varies from person to person, but most adults average eight hours of sleep.

  Sleep plays a vital role in our dailyregimen, as during this dormant period, it recharges andrejuvenatesweary body organs and tissues, and restores the body to an alert state. A person's lifestyle is another variable in the amount of time he needs to achieve this healthy balance, and to feel well rested upon awakening.

  The quality of a person's sleep also factors into the sleep equation. When we drift off to sleep, we either fall into a deep, restful sleep, or into a shallow, light sleep. One who normally requires eight hours of sleep, but sleeps shallowly, will most likely awaken feeling tired. In contrast, if the same individual sleeps fewer hours, but lapses into a state of deep sleep, he may well awaken refreshed andinvigorated.

  A lucky few can bypass shallow sleep altogether, and fall directly into deep sleep on an as needed basis. Alexander the Great's militaryprowessmay have been due, in part, to his ability to take a "cat nap."

  Yet one more variable factors into the amount of sleep we require: that of the brain and of the body sleeping simultaneously. Under normal circumstances, the brain's sleep center blocks off the nerves to the brain and to the body to make sleep possible. The brain has no interest in doing anything, and could not even if it did, because the sleep center has shut down the internal organs, the arms, and the legs. Sometimes, however, the sleep center is unsuccessful in shutting down both the brain and the body at the same time. For example, in times of war, it is not unusual for soldiers suffering from sleepdeprivationand from combat fatigue to continue to march, despite the fact that their brains have halted. Thankfully, such a situation is ananomaly, and does not occur with great frequency.

  regimen: 生活制度

  rejuvenate:使恢复,使年轻

  invigorated:精神焕发的

  prowess:威力

  deprivation:剥夺

  anomaly:不正常的    

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• 绿豆粥+炸馒头片/MUNG BEAN CONGEE + FRIED BUNS

  2008-7-13

  绿豆粥+炸馒头片/MUNG BEAN CONGEE + FRIED BUNS 　 绿豆粥/MUNG BEAN CONGEE [材料]  绿豆1杯、大米2杯 [做法] 1.绿豆洗净，泡水1小时;大米洗净，泡水20分钟。 2.将绿豆和大米一同放人锅内，加人适量清水，先煮开，再改小火，熬煮至绿豆和米粒皆已软烂即成。 INGREDIENTS 1c. mung beans, 2c.rice METHODS 1. Rinse the mung beans, soak in water for 1 hour. Rinse the rice and soak in water for 20 minutes. 2. Put the mung beans and rice altogether into the pot, add enough water, and bring to a boil, then reduce heat to low,cook until the mung beans and rice get softened. Serve. 炸馒头片/FRIED BUNS [材料]  馒头1个(冰过)、盐1茶匙 [做法] 1.先将盐放大碗内，加水1杯调匀成盐水。 2.冷馒头切厚片，锅内放油2杯先烧热，再将馒头片一一沾盐水后，立刻放入热油中，炸至两面金黄即可盛出。 INGREDIENTS 1 frozen San Don bun, 1t, salt METHODS 1. Place the salt into a big bowl, add 1c. water and mix to salty water. 2. Slice bun. Heat 2c. oil, then dip the buns Into salty water then put into the hot oil immediately, deep-fry until golden brown on both sides, then serve.

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• 把纸重复折叠12次－你可以吗　Folding Paper in Half 12 Times

  2008-7-13

  Photo of the 11th Fold, One More to go.

  Britney Gallivan has solved the Paper Folding Problem. This well known challenge was to fold paper in half more than seven or eight times, using paper of any size or shape.

  In April of 2005 Britney's accomplishment was mentioned on the prime time CBS television show Numb3rs.

  The task was commonly known to be impossible. Over the years the problem has been discussed by many people, including mathematicians and has been demonstrated to be impossible on TV.

  For extra credit in a math class Britney was given the challenge to fold anything in half 12 times. After extensive experimentation, she folded a sheet of gold foil 12 times, breaking the record. This was using alternate directions of folding. But, the challenge was then redefined to fold a piece of paper. She studied the problem and was the first person to realize the basic cause for the limits. She then derived the folding limit equation for any given dimension. Limiting equations were derived for the case of folding in alternate directions and for the case of folding in a single direction using a long strip of paper. The merits of both folding approaches are discussed, but for high numbers of folds, single direction folding requires less paper.

  The exact limit for single direction folding case was derived, based on the accumulative limiting effects induced by every fold in the folding process.

  For the single direction folding case the exact limiting equation is:

  　

  

  where L is the minimum possible length of the material, t is material thickness, and n is the number of folds possible in one direction.

  L and t need to be expressed using the same units.

  Stringent rules and definitions were defined by Britney for the folding process. One rule is: For a sheet to be considered folded n times it must be convincingly documented and independently verified that (2n) unique layers are in a straight line. Sections that do not meet these criteria are not counted as a part of the folded section.

  　

  
  Diagram showing part of a rotational sliding folding sequence

  In some web pages the limits found by Britney are described as being due to thickness to width ratios of the final folds or attributed to the folder not being strong enough to fold any more times. Both explanations for the limits are incorrect and miss the actual reason for the physical mathematical limit. The actual understanding of the problem involves understanding the simple dynamics of the folding model and the resulting algebra.

  In one day Britney was the first person to set the record for folding paper in half 9, 10, 11 or 12 times.

  The Historical Society of Pomona Valley is now selling Britney's booklet. It contains over 40 pages of solving the problem and has interesting stories and comments from others who had tried to solve the problem. The booklet gives both detailed and general explanations of the problem's background, the physical limit and tabulates the number of times it is possible to fold different size sheets.

  Alternate Direction Folding has the following limit:

  　

  

  This equation gives the width "W" of a square piece of paper needed to fold a piece of paper "n" times, by folding in alternate directions. The actual equation for alternate folding is more complicated, but this relatively simple formula gives a bound that can not be exceeded and is quite close to the actual limit.

  For paper that is not square, the above equation still gives an accurate limit. If the paper is 2:1 in length to width ratio, imagine it folded one time making it twice as thick "t" and then use the above formula remembering that one extra fold is added.

  Britney derived folding limits in December of 2001 and folded paper in half 12 times in January of 2002, while a junior in High School. She now attends U. C. Berkeley

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• 中英对照

  2008-7-12

  

   

  看《功夫熊猫》学英文(转)

  1.一切早已注定。
  　There are no accidents.

  
  2.何必躲呢，躲不过的。
  　　One meets its destiny on the road he takes to avoid it.

  
  3.着急的时候脑子也乱了，静下心来就好了。
  　Your mind is like this water, my friend , when it is agitated ,it becomes difficult to see ,but if you allow it to settle , the answer becomes clear.

  
  4.做不做呢，要不要呢？
  　　Quit don’t quit. Noodles don’t noodles.

  
  5.俗语说，既往者之不鉴，来者尤可追！那就是为什么今天是present(现在/礼物)
  　　There is a saying,
  　　yesterday is history.
  　　Tomorrow is a mystery.
  　　But today is a gift,
  　　that is why it’s called the present (the gift).

  
  6.乌龟：是的，看着这棵树，我不能让树为我开花，也不能让它提前结果。
  　Yes ，look at this tree Chivu(师傅)，I can not make it blossom and suit me,nor make it bear food before it’s time.

  　　师傅：但有些事情我们可以控制，我可以控制果实何时坠落。我还可以控制在何时播种，那可不是幻觉，大师。
  　　But there are things we can control，I can control when the fruit will fall... And I can control　what time to seed．That is not illusion , Master．

  　　乌龟：是啊，不过无论你做了什么，那个种子还是会长成桃树。你可能想要苹果或桔子，可你只能得到桃子，那个种子还是会长成桃树。 
  　　Yes, but no matter what you do,that seed will grow to be a peach tree.You may wish for an apple or an orange，but you will get a peach．

  　　师傅：可桃子不能打败太郎。
  　　But peach can not defeat Tai Long．

  　　乌龟：也许它可以的，如果你愿意引导它、滋养它、相信它。
  　　Maybe it can if you are willing to guide it, to nurture it, to believe in it.

  
  7. 阿宝，天不遂人愿，况且这本不是天意，阿宝，忘了其它的事情，你的使命一直都在向你召唤。我们是面条家族，血管中流着这样的血。
  　　I'm sorry things didn’t work out.It’s just what it’s meant to be，Paul,forget　everything else,your destiny still awaits.We are Noodle folk，broth runs deep through our veins．

  
  8.你不能走，真的武士决不会退却。
  　　You cannot leave ,real warrior never quits.

  
  9.师傅：那你为什么不退出呢？你知道我一直想把你赶走，可你还是留下来了。
  　　Why didn’t you quit ? You know I was trying to get rid of you，but you stayed．

  　　阿宝：是啊，我留下来了。我留下来是因为每次你往我头上丢砖头，或说我难闻，这很伤我的心。可最伤我心的是，我每天努力练习，却还是这个我。我留下来，因为我以为，如果还有人能改变我，能让我焕然一新，那就是你——中国最伟大的功夫师父！
  　　Yes,I stayed. I stayed ,because every time you threw up brick on the head　or said I smelled ,it hurts.But it could never hurt more than I did everyday in my life just being me.I stayed ,because I thought，if anyone could change me,could make me not me,it was you　the greatest Kong Fu teacher in the whole of China!

  
  10.Enough talk！Let's fight！
  　　罗嗦什么，打吧！

  
  11.There'e no charge for awesomeness or to attractiveness !
  　　牛人不收费，迷死人不偿命！

  
  12.我私家汤的绝密食材，就是什么都没有。
  　　The secret ingredient of my secret ingredient soup is...nothing.

  
  13.你说它特别，它就特别了。
  　　To make something special ,you just have to believe it’s special. 

   

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