f**e
发帖数: 3343 | 1 http://onlinelibrary.wiley.com/doi/10.1002/adma.201405438/full
理化所与清华大学联合研发出世界首个自主运动的可变形液态金属机器引起国际重要反响
近日，由刘静研究员带领的中国科学院理化技术研究所、清华大学医学院联合研究
小组，在Advanced Materials上发表了题为“Self-Fueled Biomimetic Liquid Metal
Mollusk”(2015)的研究论文，迅速被New Scientist、Nature研究亮点、Science新闻
等数十个知名科学杂志或专业网站专题报道，在国际上引起重要反响和热议。
此项研究于世界上首次发现了一种异常独特的现象和机制，即液态金属可在吞食少
量物质后以可变形机器形态长时间高速运动，实现了无需外部电力的自主运动，从而为
研制实用化智能马达、血管机器人、流体泵送系统、柔性执行器乃至更为复杂的液态金
属机器人奠定了理论和技术基础。这是该小组继首次发现电控可变形液态金属基本现象
(Sheng et al., Advanced Materials, 2014, 封面文章；Zh... 阅读全帖 |
|
c*********d
发帖数: 9770 | 2 荒猫牛不耕微信号laoniu003005
功能介绍
好文分享
来源：荒猫之舞
作者：荒猫
中美贸易战告一段落，毫不意外地，咱们又赢了。不过与以往不同的是，这次美国也赢
了，是双赢。据报道，咱们答应了美国减少贸易逆差的要求，所以美国赢了；而因为要
减少贸易逆差，中方将大量增加自美购买商品和服务，这样可以满足咱们不断增长的消
费需求和促进高质量经济发展，所以咱们也赢了。
但让我感觉不可思议的是，这么好的事情，为什么一直不做呢？为什么要在美国政府的
逼迫下去做呢？是因为没有想到？那岂不是说那些人能力低下？是因为想到了而不做，
那岂不是证明了那些人很坏？
而且在美国高调启动贸易战之初，咱们是抱着多大的决心，宁为玉碎不为瓦全，一定要
打赢的，一定要粉碎美国人阻挡咱们大国崛起的阴谋的。当美国提出500亿的清单时，
咱们针锋相对；当美国提出1000亿的清单时，咱们继续应战；而当美国把清单的总价提
高到2000亿的时候，一夜之间，美国就不是阻挡咱们大国崛起，而是有利于咱们大国崛
起了。美国的要求原来是有利于咱们的发展，而不是遏制咱们的发展了。我恍然大悟：
原来以前的针锋相对，是用的激将法，是为了刺激美... 阅读全帖 |
|
n*********n
发帖数: 1534 | 3 【 以下文字转载自 Military 讨论区 】
发信人: mollusk (明儿), 信区: Military
标 题: 好文(转自铁血军事): 精辟！自1840年以来，中国什么时候这么NB过？！
发信站: BBS 未名空间站 (Sat May 10 17:50:03 2008)
原文和回帖很有见地，个人觉得这篇文章把二月份以来的很多事情分析的很透彻。希望
大家广为ZT. 真心的希望我们多灾多难的祖国能最终让所有的中国人扬眉吐气！身为中
国人的兄弟姐妹们要更加团结！
p.s. 坚决支持胡总，温总！！！
http://bbs.tiexue.net/post2_2771216_1.html
现在，肯定有很多中国人都在思考同样的问题：3月份发生的西藏事件是不是一个孤立
事件，其背后有没有更大的企图？如果有，到底是什么？下面还会发生什么，结果会是
什么……
相信有许多人和我一样，凭直觉可以知道西藏事件肯定不是一个单纯的孤立事件，
因为这个世界绝不是这么单纯。但其背后到底是什么，又很难看清，很难理出头 绪。
前两天看到推荐的一个视频，又查到一篇文章，感觉豁然开朗，所有的事情都有了前因
后果， |
|
c**i
发帖数: 6973 | 4 Not Exactly Beauties, These Clams Have a Winning Taste. New York Times, May
11, 2011 (title in print)
http://www.nytimes.com/2011/05/11/dining/blood-clams
-worth-a-second-look.html?scp=1&sq=blood%20clam&st=cse
Note:
(a) hard clam
http://en.wikipedia.org/wiki/Hard_clam
(Mercenaria mercenaria; an edible marine bivalve mollusk which is native to
the eastern shores of North America, from Prince Edward Island to the Yucat
án Peninsula[, Mexico])
Quote:
"In fishmarkets there are specialist names for d... 阅读全帖 |
|
y**o
发帖数: 69 | 5 者: mollusk
on Tue, 7 Dec 1999, at 12:17 p.m.
对我来说：GRE曾经是个NIGHTMARE，99/4的LOGIC使我一败涂地。 由于
相信自己的实力，不甘心失败的我从9月底开始重新复习GRE， 经过2个多月的艰
苦奋斗，今天再考了一回，终于如愿以偿，获得了 满意的成绩2320
我很幸运，在今天的机考遇上了两个SECTION的MATH。数学再难，也难不
倒中国学生。我确实碰到了多道STANDARD Deviation，Probability的 题目，有一
道题目看是方差STANDARD Deviation与Range of Numbers 的比较， 还有一道与钱
永强提到的一道题相似，是这样的：Two Dice,6 faces each represent one Number,
when thrown twice,how many diffe |
|
c**i
发帖数: 6973 | 6 Sushi is made of raw fish or roes.
(1) Raw.
Steven A Shaw, Chicken of the Sea. New York Times, July 15, 2011 (op-ed).
http://www.nytimes.com/2007/07/15/opinion/15shaw.html
Quote:
"While Americans tend to associate raw fish with sushi and Japan, we have
been eating raw seafood for centuries — namely, oysters and clams. And it
is these raw mollusks, not the fish typically used in sushi, that are
responsible for the overwhelming majority, about 85 percent, of seafood-
related illnesses. * * * 'The ... 阅读全帖 |
|
p***o
发帖数: 55 | 7 pello及其郁闷的出乐牛黑文，在纽约和chord大谈人生理想，与肖JJ大啖佳肴，
认识乐一些新朋友，和老朋友一起过了新年。
21 Century Store,Brooklyn bridge, Wall St. Atlantic City( 帮肖JJ挣了＄25，西西
)
Harvard Square, 还在Boston唯一开到晚上1点的店子喝苹果汁。
对乐， chord, mother-of-pearl的英文意思是
the hard pearly iridescent substance forming the inner layer of a mollusk she
ll
可能是贝母层巴。 |
|
l**********r
发帖数: 1865 | 8 下面是我之前网上搜到的：
Anyone 16 years and older must have a fishing license to take any kind of
fish, mollusk, invertebrate, amphibian or crustacean in California, except
for persons fishing from a public pier in ocean or bay waters.
确认public pier不需license
1.88. Public Pier. A public pier is a publicly owned man-made structure that
has the following characteristics: is connected, above the mean high tide,
to the main coastline or to the landmass of a named and charted natural
island; has unrestricted fre... 阅读全帖 |
|
F*********e
发帖数: 3580 | 9 我德洗洗睡吧
Paul, the German octopus that predicted every German World Cup match so far
has picked Spain to win the upcoming semi-final.
This German octopus is stunning soccer fans around the world with his
remarkable ability to predict the outcome of German World Cup games. Paul, a
mollusk in Oberhausen, has correctly picked the result of all three German
games so far. Most recently, the savvy octopus foresaw that Germany would
edge Ghana to advance to the tournament’s knockout stage, accordin |
|
b*****i
发帖数: 849 | 10 失误了就煎了章鱼哥
我德洗洗睡吧
Paul, the German octopus that predicted every German World Cup match so far
has picked Spain to win the upcoming semi-final.
This German octopus is stunning soccer fans around the world with his
remarkable ability to predict the outcome of German World Cup games. Paul, a
mollusk in Oberhausen, has correctly picked the result of all three German
games so far. Most recently, the savvy octopus foresaw that Germany would
edge Ghana to advance to the tournament’s knockout stag |
|
b*s
发帖数: 82482 | 11 觉得你吃的都是mollusk，就是鼻涕虫一类的，称为软体动物
或者是甲壳纲的，纯属无脊椎低等动物。吃过高等一点的么？
其实吧，我觉得再好吃的飞禽走兽也不如海鲜好吃，比如说螃蟹啊龙虾啊之类的
还有蛏子啊，螺啊什么的也很好吃
要是连着一段时间吃海鲜，之后再吃其它啥都没味觉
没错，再好吃的走兽，归其了想想，味道和口感也就跟鸡肉差不多。 |
|
B********s
发帖数: 1617 | 12 我靠，千万不要误导，那个水还是不要喝的好。
https://microbewiki.kenyon.edu/images/0/0c/Saxitoxin.jpg
Pyrodinium bahamense, along with many other dinoflagellates, are known for
secreting toxins that cause Paralytic Shellfish Poisoning (PSP). The group
of toxins that are released by Pyrodinium bahamense are known as saxitoxins.
While not particularly dangerous out in the open ocean, the toxin is
sequestered in molluscian shellfish and is dangerous to mollusk consumers.
PSP has a 15% mortality rate in the human populati... 阅读全帖 |
|
f****r
发帖数: 311 | 13
cuttlefish:
any of various 10-armed marine cephalopod mollusks (order Sepioidea,
especially genus Sepia) differing from the related
squid in having a calcified internal shell
squid:
any of an order (Teuthoidea) of cephalopods having eight short arms and two
usually longer tentacles, a long tapered body, a caudal fin on each side,
and usually a slender internal chitinous support |
|
H********g
发帖数: 43926 | 14 吃鱼的话鱼也是跟人差不多淡的。所以食物本身也不带多少盐。
吃海草或者贝类等话食物会带进去很多盐，就要想办法排掉。
Different food types vary in salt content. Species that subsist on plants or
invertebrates (such as crustaceans and mollusks) consume food with about
the same salt content as seawater. These species thus face the same salt
removal problem they would have if they drank seawater directly. In contrast
, marine mammals that feed on fish consume food with a salt content similar
to that of their own blood, thereby avoiding the problem entirely. ... 阅读全帖 |
|
l**********n
发帖数: 75 | 15 其实这不是我的猜测，而是很长时间以来神创论学者对进化论学者的回应
先看看科学家们自己的说法
Lava from the 1801 Havaiian valcano eruption gave a K-Ar date of 1.6
million years old.
Dalyrmple, G.B., 1969 40Ar/36Ar analysis of historic lava flows
-Earth and Planetary Science Letters, 6-47 55.
Living mollusk shells were dated up to 2300 years old. |
|
l*****a
发帖数: 38403 | 16 【 以下文字转载自 Belief 讨论区 】
发信人: lloydpreston (lloyd), 信区: Belief
标 题: 关于C14探测地球生物年龄的问题
发信站: The unknown SPACE (Fri Jun 7 12:22:24 2002) WWW-POST
其实这不是我的猜测，而是很长时间以来神创论学者对进化论学者的回应
先看看科学家们自己的说法
Lava from the 1801 Havaiian valcano eruption gave a K-Ar date of 1.6
million years old.
Dalyrmple, G.B., 1969 40Ar/36Ar analysis of historic lava flows
-Earth and Planetary Science Letters, 6-47 55.
Living mollusk shells were dated up to 2300 years old. |
|
s*********t
发帖数: 600 | 17 最激动人心的科学是现在
—为Tim Hunt学术报告的引言
当我的年龄接近于在座的多数时，我有个和你们一样的担心：最好的科学都已经做掉了
，我们没有赶上过去的好时代。
确实，很多进入科学不久的人，在经历最初的激动后，常常发现科学研究的日常有很多
重复工作：克隆基因、纯化蛋白
质、培养细胞、筛选突变…。一般来说，手头的工作好像远远不如听老师讲的科学发现
故事那么精彩、那么美妙。
不少学生会失望，可能还会转而埋怨：现代科学已经变质了，都是骗我们进来做苦力。
这不是新的现象，不仅你们现在，我们二三十年前，也有学生经常聚在一起说同样的话
。比如我在中国是1983年开始念
研究生，我的同学里就有很多这样的议论。
但是，事实上，我们今天的学术报告人，Tim Hunt博士，就是在1982年，做出他最重要
的工作（发现cyclin分子，
1983年发表）。也就是说，象我一样愚蠢和不敏感的人正在发表自以为是的高论的时候
，正是Tim这样的科学家，他们
有洞察力、有敏感性、或者有运气，正在做突破性的发现。
等我1985年到UCSF读研究生后，不长的几年内，我们看到，在美国、英国、加拿大、日... 阅读全帖 |
|
I***i
发帖数: 14557 | 18 http://news.sciencemag.org/sciencenow/2012/06/mantis-shrimp-sma
Mantis Shrimp Smash!
by Gisela Telis on 7 June 2012, 2:24 PM
The peacock mantis shrimp packs a powerful punch. The crustacean uses its
hammerlike claws to smash through mollusk shells and even aquarium glass
without getting injured. Now, a new study reveals what makes its claws so
tough: a unique composition and structure that stops cracks in their tracks
—one that could help engineers design lighter, stronger materials for
military... 阅读全帖 |
|
I***i
发帖数: 14557 | 19 http://www.livescience.com/13921-jellyfish-swarms-amazing-image
1.
Jellyfish Swarms
Credit: K.Katija/J.Dabiri.
Jellyfish are simple, successful and, occasionally, deadly creatures. The
Australian box jellyfish has enough toxin in each of its tentacles to kill
60 people. Some jellyfish create spectacular blooms when fields of polyps,
their stationary life stage, simultaneously bud off into free-floating
medusae. These blooms are blamed for the deaths of swimmers, clogged fishing
nets and power pl... 阅读全帖 |
|
cp
发帖数: 183 | 20 向各位大侠请教关于购买fishing license的问题：
在dfg网站上看见可以online买fishing license.
http://www.dfg.ca.gov/licensing/ols/intro.html
请问如果只是去周日的挖蚌活动，是不是买一天的 license就行了，而不需要两天的。
可以直接网上付钱打印出来。一天
的$13.40，两天的$20.75。
网上关于这几种不同期限licenses说明如下：
*A. Select One (1) License
Name Description Fee
2010 Resident Sport Fishing License Required for a resident 16 years
of age or older to take fish,
mollusks, crustaceans, invertebrates, amphibians or reptile in inland or
ocean waters. Additional stamps
and report cards ar |
|
|
