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全部话题 - 话题: dioxide
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l****z
发帖数: 29846
1
“我是个科学家,曾经是靠推销全球暖化吃饭的,我理解相关的证据,我曾是个人造全
球暖化信徒,现在我是个怀疑论者”
Carbon warming too minor to be worth worrying about
By David Evans
The debate about global warming has reached ridiculous proportions and is
full of micro-thin half-truths and misunderstandings. I am a scientist who
was on the carbon gravy train, understands the evidence, was once an
alarmist, but am now a skeptic. Watching this issue unfold has been amusing
but, lately, worrying. This issue is tearing society apart, making fools out
of our... 阅读全帖
c****8
发帖数: 33
2
怎么能当上海科大的副校长?
EDUCATION:
1990 Ph.D. Inorganic Chemistry, Purdue University
1982 Undergraduate Education, East China Normal University, Shanghai,
China.
EXPERIENCE:
1998- Professor of Chemistry, Southeast Missouri State University
1994- Associate Professor of Chemistry, Southeast Missouri State University
1990-1994 Assistant Professor of Chemistry, Southeast Missouri State
University
1993 summer NASA JOVE Research fellow, Lewis Research Center, Cleveland, OH.
1991 summer Visiting Professor,... 阅读全帖
c****t
发帖数: 19049
3
An international team of scientists says it's figured out how to slow global
warming in the short run and prevent millions of deaths from dirty air:
Stop focusing so much on carbon dioxide.
They say the key is to reduce emissions of two powerful and fast-acting
causes of global warming — methane and soot.
Carbon dioxide is the chief greenhouse gas and the one world leaders have
spent the most time talking about controlling. Scientists say carbon dioxide
from fossil fuels like coal and oil is a b... 阅读全帖
l****z
发帖数: 29846
4
Jul. 27 2011 - 3:23 pm
NASA satellite data from the years 2000 through 2011 show the Earth’s
atmosphere is allowing far more heat to be released into space than alarmist
computer models have predicted, reports a new study in the peer-reviewed
science journal Remote Sensing. The study indicates far less future global
warming will occur than United Nations computer models have predicted, and
supports prior studies indicating increases in atmospheric carbon dioxide
trap far less heat than alarmists... 阅读全帖
l****z
发帖数: 29846
5
The phony ‘consensus’ on climate change
The end is near ...
... that is, for the myth that scientists have reached "consensus" on global
warming and climate change caused by humans.
The theory (more accurately called a religion for the redistribution of
wealth) has taken a number of body blows in recent times -- although the
climate-change lobby is still straining to impose its view on the world. For
example, Time magazine issued a screed headlined "Who's Bankrolling the
Climate-Change Deniers?"... 阅读全帖
b*****d
发帖数: 61690
6
假科学家居然怒了。
http://www.realclearpolitics.com/video/2017/04/23/bill_nye_criticizes_cnn_for_having_him_debate_princeton_climate_skeptic_who_met_with_trump.html#disqus_thread
Bill Nye Criticizes CNN For Having Him Debate Princeton Climate Skeptic Who
Met With Trump
On Saturday's edition of 'New Day' on CNN, Princeton University physics
professor Dr. William Happer, who argues that concerns about climare change
are "trivial," debates 'Science Guy' and Planetary Society CEO Bill Nye.
Happer talks about... 阅读全帖
c*****r
发帖数: 529
7
来自主题: Stock版 - This Could Be The End For Big Oil???
http://truthcdm.com/this-could-be-the-end-for-big-oil/
This Could be the End for Big Oil
stunning breakthrough in chemical engineering has unleashed a massive supply
of fuel…
Enough fuel, in fact, to power the entire globe for over 36,000 years.
It’s poised to decimate Big Oil’s obscene profits, make OPEC obsolete, and
hand the United States 100% energy independence.
In fact, the U.S. Department of Defense just invested $7 billion in a single
day…
Apple, Google, and Facebook are spending billion... 阅读全帖
r********n
发帖数: 6979
8
应该关系不大
It is a common fact that it is the female mosquito that inflicts a bite, as
it requires blood, so as to develop her eggs. Studies show that these
mosquitoes get attracted to humans by the scents emitted from the human body
. According to these studies human skin emits around 340 types of chemical
scents that attract mosquitoes. Apart from these chemicals, there are
various other factors that are responsible for making humans prone to
mosquito bites. The following are some among them.
It h... 阅读全帖
b*****d
发帖数: 61690
9
【 以下文字转载自 USANews 讨论区 】
发信人: brihand (brihand), 信区: USANews
标 题: 假科学家和真科学家辩论气候变化
发信站: BBS 未名空间站 (Tue Apr 25 15:10:16 2017, 美东)
假科学家居然怒了。
http://www.realclearpolitics.com/video/2017/04/23/bill_nye_criticizes_cnn_for_having_him_debate_princeton_climate_skeptic_who_met_with_trump.html#disqus_thread
Bill Nye Criticizes CNN For Having Him Debate Princeton Climate Skeptic Who
Met With Trump
On Saturday's edition of 'New Day' on CNN, Princeton University physics
professor Dr. William Happer, who argue... 阅读全帖
l****z
发帖数: 29846
10
Climatologist: We Have a ‘Moral Imperative’ to Burn Fossil Fuels
(CNSNews.com) – We have a “moral imperative” to burn carbon dioxide-
emitting fossil fuels because the energy they provide is a “liberator” of
humanity, says Dr. John Christy [1], a climatologist and director of the
Earth System Science Center [2] at the University of Alabama, Huntsville.
“We are not morally bad people for taking carbon and turning it into the
energy that offers life to humanity in a world that would otherwise be
b... 阅读全帖
P*****t
发帖数: 4978
11
来自主题: Military版 - 中国牺牲了自己救了全世界
China Coal Consumption Linked To Global Cooling
WASHINGTON -- Scientists have come up with a possible explanation for why
the rise in Earth's temperature paused for a bit during the 2000s, one of
the hottest decades on record.
The answer seems counterintuitive. It's all that sulfur pollution in the air
from China's massive coal-burning, according to a new study.
Sulfur particles in the air deflect the sun's rays and can temporarily cool
things down a bit. That can happen even as coal-burning pro... 阅读全帖

发帖数: 1
12
来自主题: Military版 - 疮聚聚的气候委员会太搞笑了
清一色的非主流,连装都不装,alway win。
Meet The Ostriches Under Consideration For Trump’s Anti-Science Climate
Panel
The list includes people who have called climate science a “cult” and
claimed Earth benefits from burning fossil fuels.
headshot
By Chris D’Angelo
In its ongoing attempt to discredit decades of climate science, the Trump
administration is reportedly reaching out to some of the most seasoned
deniers on the circuit to join a new panel to present an alternative take on
climate change.
As The Washi... 阅读全帖
l****z
发帖数: 29846
13
By DICK MORRIS & EILEEN MCGANN
Published on DickMorris.com on November 22, 2010
Does President Obama plan to move to the center in response to his
overwhelming rejection at the polls on November 2nd? No way! Instead, he
is moving to implement, through executive action, two of the most
controversial items in his 2010 agenda -- a carbon tax and pollution permit
system and a ban on the use of secret ballots in union elections. Through
executive action by the Environmental Protection Administrati... 阅读全帖
a**e
发帖数: 8800
14
Net: 为了所谓的绿色能源,2007,在左派推动下,立法要求在汽油里加入ethanol。
O8大力推动种植玉米生产ethanol。仅仅6年,后果已经在那里了。
大面积的原始植被/湿地变成玉米地,水土流失,被化肥污染的水进入水系,甚至影响
到饮用水,流入的污染水在墨西哥湾造成大面积的死亡区,水体生物灭绝。
最有意思的地方在于,生产ethanol的前期后期要花费的能量比生产出的ethanol能产生
的能量多。
AP Investigation: Obama's green energy drive comes with an unadvertised
environmental cost
http://news.yahoo.com/secret-dirty-cost-obamas-green-051200204.
CORYDON, Iowa (AP) -- The hills of southern Iowa bear the scars of America's
push for green energy: The brown gashes where rain has washed ... 阅读全帖

发帖数: 1
15
31,487 U.S. Scientists Reject Global Warming Hoax
A growing list of 31,487 U.S. scientists (and counting) has signed a
petition strongly rejecting as unproven the hypothesis of man-made global
warming or climate change. These signers include four NASA astronauts, at
least two Nobel Prize winning physicists, 9,029 Ph.D.s and some of the
nation’s top climatologists. Only U.S. scientists are included in this
particular petition. Only relevant scientific fields are included.
Ball-and-stick model of... 阅读全帖
S*******h
发帖数: 7021
16
【 以下文字转载自 USANews 讨论区 】
发信人: ddsd (ddsd), 信区: USANews
标 题: 31,487 U.S. Scientists Reject Global Warming Hoax
发信站: BBS 未名空间站 (Sun Jun 4 18:29:02 2017, 美东)
31,487 U.S. Scientists Reject Global Warming Hoax
A growing list of 31,487 U.S. scientists (and counting) has signed a
petition strongly rejecting as unproven the hypothesis of man-made global
warming or climate change. These signers include four NASA astronauts, at
least two Nobel Prize winning physicists, 9,029 Ph.D.s and some of the
natio... 阅读全帖
j******u
发帖数: 41683
17
来自主题: PennySaver版 - [合集] 讨论一下防晒霜呗~~
☆─────────────────────────────────────☆
chai (柴) 于 (Tue May 21 15:36:12 2013, 美东) 提到:
既然是省版,那资生堂之类的就pass了,说些药店的呗
水宝宝,香蕉船,aveeno,露得清,还有啥~~~
大家都用过啥,觉得效果哪个比较好啊?~~
偶就用过水宝宝运动款的,没有特别滴感觉,还是黑啊。。。
今年想入露得清,不知道怎么样。。。
☆─────────────────────────────────────☆
nowhere09 (everywhere or nowhere) 于 (Tue May 21 15:42:57 2013, 美东) 提到:
喜欢露得清 不油, 水宝宝有点油 但有美白效果,呵呵

☆─────────────────────────────────────☆
sakurafirst (yaya) 于 (Tue May 21 15:43:14 2013, 美东) 提到:
曼秀雷敦。。。
☆───────────────────────────────────... 阅读全帖
e****i
发帖数: 2152
18

The ratio between the stable isotopes of carbon (12C/13C) seems to indicate
that significant changes in the carbon cycle took place starting about 500,
000 to 1 million years before the end of the Permian Period and crossing the
boundary into the Induan Age (the first age of the Triassic Period). These
changes appear to coincide closely with two Permian extinction events,
suggesting some cause-and-effect relationship with changes in the carbon
cycle.
Several studies have suggested that changes ... 阅读全帖
s********n
发帖数: 235
19
来自主题: Chemistry版 - Paper help! Many thanks!
Title: ELECTROCHEMISTRY OF CARBON-DIOXIDE
Author(s): SAVEANT JM
Source: DENKI KAGAKU Volume: 59 Issue: 6 Pages: 463-463 Published:
JUN 1991
Title: ON THE ELECTROCHEMICAL REDUCTION OF CARBON-DIOXIDE
Author(s): AMATORE C, NADJO L, SAVEANT JM
Source: NOUVEAU JOURNAL DE CHIMIE-NEW JOURNAL OF CHEMISTRY Volume: 8
Issue: 10 Pages: 565-566 Published: 1984
Title: MECHANISM AND KINETIC CHARACTERISTICS OF THE ELECTROCHEMICAL
REDUCTION OF CARBON-DIOXIDE IN MEDIA OF LOW PROTON AVAILABILITY
Au... 阅读全帖
K**W
发帖数: 6346
20
Wynne Parry
LiveScience Senior Writer
LiveScience.com Wynne Parry
livescience Senior Writer
livescience.com – 1 hr 20 mins ago
Global Warming: Dire Prediction for the Year 3000
Even if humans stop producing excess carbon dioxide in 2100, the lingering
effects of global warming could span the next millennia. The results? By the
year 3000, global warming would be more than a hot topic - the West
Antarctic ice sheet could collapse, and global sea levels would rise by
about 13 feet (4 meters), accor... 阅读全帖
l******t
发帖数: 55733
21
来自主题: Military版 - 你们喜欢喝苏打水么
不一定谁被打脸,
http://en.wikipedia.org/wiki/Carbonated_water
Carbonated water (also known as club soda, soda water, sparkling water,
seltzer, or fizzy water) is water into which carbon dioxide gas under
pressure has been dissolved, a process that causes the water to become
effervescent.
Carbonated water is the defining ingredient of carbonated soft drinks. The
process of dissolving carbon dioxide in water is called carbonation.
Carbon dioxide and water form carbonic acid (H2CO3),[2] which gives the
wa... 阅读全帖
v**e
发帖数: 8422
22
来自主题: Military版 - UCSD Clifford Kubiak 经费来源
怎么只到2007年, 这家伙是不是没钱了?
还是另有来源.
1 0634989 NSF CRIF-MU Purchase of an X-Ray Diffractometer
Clifford Kubiak University of California-San Diego 2007 $355,
510
2 0616279 NSF Ultrafast Inorganic Ground States as Dynamical
Probes and Molecular Devices Clifford Kubiak University of
California-San Diego 2006 $867,000
3 0438046 NSF ORGANICS: Patterned Fabrication of Organic
Conductors at the Nanoscale Clifford Kubiak Univers... 阅读全帖
l****z
发帖数: 29846
23
来自主题: Military版 - 气候变暖不是骗局
January 2, 2012
Fake! Fake! Fake! Fake!
By S. Fred Singer
In discussing the recent release of some 5,000 Climategate e-mails, blogger
Anthony Watts uses the clever headline "They are real -- and they're
spectacular." He credits Jerry Seinfeld as the source. Following his
example, I choose the headline "Fake! Fake! Fake! Fake!" -- also taken from
a Seinfeld episode -- in discussing the surface temperatures generally
reported for the latter part of the 20th century; they form the science
basis... 阅读全帖

发帖数: 1
24
来自主题: Military版 - 这是暖教的遭到老天的无情讥讽
全球变暖是20世纪骗钱大骗局
链接:https://www.zhihu.com/question/19595131/answer/62798366
来源:知乎
著作权归作者所有。商业转载请联系作者获得授权,非商业转载请注明出处。
2014年止,已经有1000多名科学家联名反对全球气候变暖论,其中包括1998年诺贝尔物
理奖得主、斯坦福大学教授Robert Laughlin,Robert Laughlin认为:“气候变化不是
人力可以控制的,地球也不会在意政府有什么想法。根据目前的天气报告,找不到任何
全球气候变暖的证据。气候变化是地质时间尺度的现象,是地球运行的自然规律,不需
要任何人批准也不必向任何人解释”。NASA高级科学家Weinstein 说:“任何合理的科
学分析都会得出结论,(全球气候变暖依据的)基本理论是错的”。化学家 Mary
Mumper表示:“我也是环境保护主义者,但我必须反对Al Gore的观点”。巴西地质学
家Lino 批评说:“把数千亿的钱浪费在这个没有事实依据的人为杜撰的全球气候变暖
论上毫无价值”。 以下为《赛先生》原文。链接:为二氧化碳平反 -- 赛先生... 阅读全帖
l****z
发帖数: 29846
25
January 2, 2012
In discussing the recent release of some 5,000 Climategate e-mails, blogger
Anthony Watts uses the clever headline "They are real -- and they're
spectacular." He credits Jerry Seinfeld as the source. Following his
example, I choose the headline "Fake! Fake! Fake! Fake!" -- also taken from
a Seinfeld episode -- in discussing the surface temperatures generally
reported for the latter part of the 20th century; they form the science
basis for prosperity-killing international clim... 阅读全帖
l****z
发帖数: 29846
26
来自主题: USANews版 - World Ignores Obama Coal War
By Chris Stirewalt
"We can't drive our SUVs and eat as much as we want and keep our homes on 72
degrees at all times ... and then just expect that other countries are
going to say ‘OK.’ That's not leadership. That's not going to happen.”
-- Then-Sen. Barack Obama at a campaign rally in Oregon, May 17, 2008.
World leaders don’t seem to be paying much heed to President Obama. And not
just when it comes to domestic spy leaker Edward Snowden’s ultimate
destination.
Obama today will announce what pro... 阅读全帖

发帖数: 1
27
全球变暖是20世纪骗钱大骗局
链接:https://www.zhihu.com/question/19595131/answer/62798366
来源:知乎
著作权归作者所有。商业转载请联系作者获得授权,非商业转载请注明出处。
2014年止,已经有1000多名科学家联名反对全球气候变暖论,其中包括1998年诺贝尔物
理奖得主、斯坦福大学教授Robert Laughlin,Robert Laughlin认为:“气候变化不是
人力可以控制的,地球也不会在意政府有什么想法。根据目前的天气报告,找不到任何
全球气候变暖的证据。气候变化是地质时间尺度的现象,是地球运行的自然规律,不需
要任何人批准也不必向任何人解释”。NASA高级科学家Weinstein 说:“任何合理的科
学分析都会得出结论,(全球气候变暖依据的)基本理论是错的”。化学家 Mary
Mumper表示:“我也是环境保护主义者,但我必须反对Al Gore的观点”。巴西地质学
家Lino 批评说:“把数千亿的钱浪费在这个没有事实依据的人为杜撰的全球气候变暖
论上毫无价值”。 以下为《赛先生》原文。链接:为二氧化碳平反 -- 赛先生... 阅读全帖
s********u
发帖数: 748
28
Volkswagen said that most of the 800,000 vehicles affected by the carbon
dioxide issue were diesels as well and that it discovered the problem while
investigating the earlier software deception. It said a recall would not be
necessary to fix the carbon dioxide issue.
Most of the cars with the carbon dioxide problem are equipped with an engine
line known as the EA 288, of which there are 1.4-liter, 1.6-liter and 2-
liter versions. A small number of cars with gasoline engines are also
affected, Mr... 阅读全帖
t****t
发帖数: 208
29
来自主题: GunsAndGears版 - 经历sandy 前后的几件小事
不要迷惑人:
Propane Properties and reactions
Propane undergoes combustion reactions in a similar fashion to other alkanes
. In the presence of excess oxygen, propane burns to form water and carbon
dioxide.
C3H8 + 5 O2 → 3 CO2 + 4 H2O + heat
propane + oxygen → carbon dioxide + water
When not enough oxygen is present for complete combustion, incomplete
combustion occurs when propane burns and forms water, carbon monoxide,
carbon dioxide, and carbon.
2 C3H8 + 7 O2 → 2 CO2 + 2 CO + 2 C + 8 H2O + heat
Pro... 阅读全帖
a**u
发帖数: 8107
30
☆─────────────────────────────────────☆
runsun (runsun) 于 (Fri Dec 18 14:14:14 2009, 北京) 提到:
美国加州2009.8.29
D:科学家说数十亿年前金星曾像地球有海洋但干枯了,部分原因是金星太接近太阳,它
有水存在可能表示那里曾有物质生命,今日科学家相信,金星有微生物存在,金星是否
曾像地球能长养生命?
M:是,它过去是,它曾是美丽的星球,现在已不再是,那里完全没有生命了,没有任何
生物,很遗憾。
D:那里过去曾有生命,他们看起来像我们吗?
M:是,是,他们看起来像我们。
D:火星,地球和金星为何都有类似人类的众生居住,我们有类似的祖先吗?谢谢M。
M:我们只有一个祖先那就是上帝,有些变成堕落天使,他们看起来类似我们,是因为我
们有类似的功德,包括我们银河中的火星,金星等星球,只问我们银河中的不要问太远
的星球,否则我就不用出定了。虽然你的问题很简单,但我要查证,需要一些时间,为
了地球的生存我们也都很忙,所以我得牺牲你们的要求,一直拖到今天,我好不容易才
排进今天的行程里。
D:谢谢M
... 阅读全帖
a*******m
发帖数: 14194
31
真是学科学的人的耻辱呀,二氧化碳竟然成了污染物。
这帮子人也真是能忽悠,从全球变暖,忽悠到全球气候变化。
地球本来就是个不停在变动的系统,你prevent个屁呀?
美国要真是玩减少碳排放,也是有可能做到的,直接把烧煤的电厂,
全关了,换成烧天然气的电厂就差不多了。
但是,这么宝贵的,便于使用的天然气,就拿来烧掉发电,实在是太暴殄天物了。
就跟你把上好的花梨木,当柴烧,生火做饭是一回事。
农民都不这么傻逼,都知道,最没用的料用来烧锅。
美国的一帮子人实在是太不像话了。
中国要减少污染,要环保,但是,烧天然气发电,拿花梨木烧锅的事,
是坚决不能干的。
美帝这帮骗子有点丧心病狂了!
Obama Announces Rule to Cut Carbon Emissions From Power Plants
http://www.wsj.com/articles/obama-announces-rule-to-cut-carbon-
By COLLEEN MCCAIN NELSONand AMY HARDER
Updated Aug. 3, 2015 7:33 p.m. ET
631 COM... 阅读全帖
n********d
发帖数: 7676
32
Miracle Mineral Supplement, often referred to as Miracle Mineral Solution,
Master Mineral Solution, MMS or the CD protocol,[1] is a toxic solution of
28%[2] sodium chlorite in distilled water. The product contains essentially
the same ingredient as industrial-strength bleach before "activation" with a
food-grade acid. The name was coined by Jim Humble in his 2006 self-
published book, The Miracle Mineral Solution of the 21st Century.[3] A more
dilute version is marketed as Chlorine Dioxide Solut... 阅读全帖
e*c
发帖数: 395
33
来自主题: Military2版 - 同学们,美军也在搞水变油了
海水变油,成本3到6刀一加仑。预计8到10年后可以海试。这个成了以后是不是驱逐舰
也能靠航母加油了?
http://www.nrl.navy.mil/media/news-releases/2012/fueling-the-fl
Fueling the Fleet, Navy Looks to the Seas
09/24/2012 07:00 EDT - 117-12r
Contact: Daniel Parry, (202) 767-2541
Refueling U.S. Navy vessels, at sea and underway, is a costly endeavor in
terms of logistics, time, fiscal constraints and threats to national
security and sailors at sea.
In Fiscal Year 2011, the U.S. Navy Military Sea Lift Command, the primary
supplier of fuel and oil to ... 阅读全帖
l****z
发帖数: 29846
34
来自主题: USANews版 - Global warming stopped 16 years ago
Global warming stopped 16 years ago, reveals Met Office report quietly
released... and here is the chart to prove it
The figures reveal that from the beginning of 1997 until August 2012
there was no discernible rise in aggregate global temperatures
This means that the ‘pause’ in global warming has now lasted for about
the same time as the previous period when temperatures rose, 1980 to 1996
By David Rose
PUBLISHED: 16:42 EST, 13 October 2012 | UPDATED: 20:21 EST, 13 October 2012

The ... 阅读全帖
l****z
发帖数: 29846
35
Climate Change: The Single Greatest Misinformation Campaign in World History
April 24, 2015 - 11:16 AM
By Stephen Moore
Wednesday was Earth Day and to hear the experts like Usher and Al Gore tell
the story, the planet is in a miserable state. We’re running out of our
natural resources, we’re overpopulating the globe and running out of room,
the air that we breathe is becoming toxic, the oceans are rising and soon
major coastal cities will be underwater, and the Earth is, of course,
heating up, e... 阅读全帖
x******g
发帖数: 289
36
来自主题: Returnee版 - 上海科大新进人员论文水平堪忧
物质学院(包括物理、材料、化学等学科)
该学院一共一个正教授,三个助理教授
正教授代表作
1. A First Example of “Wittig Reaction” on a Coordinated Carbon Dioxide
Nickel Complex. Journal of American Chemical Society.
2. Theoretical Study of Carbon Dioxide Coordination in Palladium Complexes.
Applied Organometallic Chemistry.
3. Theoretical Investigation of Ketene Bonding Modes in Bis(phosphine)
Palladium Ketene Complexes. Journal of Coordination Chemistry.
4. Double Insertion of Methylene into Nickel-Phosphorus Bonds: Synthesis and
Structur... 阅读全帖
j*********r
发帖数: 24733
37
来自主题: Running版 - 你们跑步防晒不
我来说两句这个防晒霜, 因为小孩子要用, 做过一段时间的research, 谈谈我的看法.
一家之言, 可能有误.
防晒霜分为物理防晒和化学防晒, 物理防晒就是摸到脸上的是一层物理barrier, 主要
成分就是Titanium Dioxide和Zinc Oxide, 浓度越高效果更好, 当然也更难摸. 需要注
意的是ZINC OXIDE颗粒的直径要大于100nm, 太小的颗粒会增加致癌风险. 这种引起过
敏的可能性要低很多. 化学防晒就是不同的chemicals, 摸到脸上后需要一定时间起反
应, 形成barrier, 一般1.5-2小时要补一次. 这种我试过所有的major brands, 经常引
起过敏, 非常不喜欢. 还有一个噱头就是SPF, 物理的一般标30+, 化学的一般要高很多
, 什么SPF80, SPF100之类的, 其实没啥大用, 我觉得效果不好. 晒黑其实没事, 防晒
霜防的是晒伤.
再高级一点的话就是organic的了, 这种都是物理防晒, 是各种植物提取物加上
Titanium Dioxide和Zinc Oxide, 有些非常难摸开, 而且味道不太好. 也贵很... 阅读全帖
s*********s
发帖数: 428
38
来自主题: Fashion版 - 也来说说自己的治痘痘产品
你推荐的这个Acnepril有silicon dioxide. 这个silicon dioxide难道没有害吗?它的
成分表里其他东西听起来都蛮好的,在网站上也有详细介绍http://www.acneticin.com/ingredients.php。可是这个silicon dioxide提都没有提,就象不存在一样。
内服的东西还是小心点比较好。
a*******a
发帖数: 747
39
我觉得physical防晒涂最外,化学防晒要直接和皮肤接触才管用。
但是混合的防晒霜我就不知道了。。。
转:
Here are 8 easy tips for applying sunscreen:
1. Lay it on thick. Use a tablespoon of sunscreen (of at least an SPF 25) on
your face, and about two ounces for your body. Unless you slather on a
thick layer, you’re probably just getting an SPF 10 out of your SPF 30.
2. Dot sunscreen directly onto your face—instead of squeezing a giant blob
onto your hands and applying it. I’ve found this technique helps it absorb
more quickly and evenly.
3. Pu... 阅读全帖
d*********2
发帖数: 48111
40
看见好多人讨论的样子。
我转贴一小段学术吧
April 22, 2005
Change of Direction: Do SO2 Emissions Lead to Warming?
Filed under: Climate Forcings —
Many scientists believe that sulfur dioxide emissions, either from un-
scrubbed power plants or from large-scale agricultural burning, serve to
cool the planet’s surface temperature.
The cooling mechanism is fairly straightforward. Sulfur dioxide is
transformed in the atmosphere into sulfate aerosol, a fine particle that
reflects away the sun’s radiation. The particles also... 阅读全帖
d*********2
发帖数: 48111
41
哦, 看来听力还ok
Carbon dioxide emissions from fossil fuels around the globe remained steady
last year and will only rise slightly in 2016, according to new research.
Researchers behind the study, conducted at the Global Carbon Project and
published in the journal Earth System Science Data, project that carbon
dioxide emissions will rise 0.2% in 2016. That represents a small fraction
of the average 2.3% annual growth in the decade prior to 2013.
http://time.com/4569898/climate-change-carbon-dioxide-co... 阅读全帖
q**w
发帖数: 782
42
https://www.macfound.org/fellows/952/
Peidong Yang is an inorganic chemist transforming the field of semiconductor
nanowires and nanowire photonics and enabling wide-ranging practical
applications. Nanowires are very small wires at the nano scale—so small
that they behave differently, with quantum effects. Yang has led major
breakthroughs in nanowire photonics over the last decade, from the initial
development of nanowire lasers to the characterization of optical routing in
nanowire assemblies a... 阅读全帖
T*********I
发帖数: 10729
43
来自主题: Biology版 - 水、阳光、co2-->柴油
好多大的新闻媒体转载,比如ABCnews.
Mass. company making diesel with sun, water, CO2
CAMBRIDGE, Mass. (AP) -- A Massachusetts biotechnology company says it can
produce the fuel that runs Jaguars and jet engines using the same
ingredients that make grass grow.
Joule Unlimited has invented a genetically-engineered organism that it says
simply secretes diesel fuel or ethanol wherever it finds sunlight, water and
carbon dioxide.
The Cambridge, Mass.-based company says it can manipulate the organism to
produce the... 阅读全帖
l********e
发帖数: 41
44
来自主题: Chemistry版 - Book help
Can anyone be so nice to provide the electronic copy of the following books?
Thank you very much!!!
Book 1:
Supercritical Carbon Dioxide: in Polymer Reaction Engineering
Publisher: Wiley-VCH Verlag GmbH & Co. KGaA
Editor(s): Maartje F. Kemmere, Thierry Meyer
Print ISBN: 9783527310920
Online ISBN: 9783527606726
Book 2:
Natural Extracts Using Supercritical Carbon Dioxide [Hardcover]
Edited by Mamata Mukhopadhyay
Publisher: CRC press
Book 3:
Solubility in Supercritical Carbon Dioxide
Edited by: Ra
s********n
发帖数: 235
45
来自主题: Chemistry版 - Paper help! Thanks!
Coordination of Carbon Dioxide to Nickel
An Alternative Theoretical Model
R. P. Messmer and H.-J. Freund
Chapter 3, pp 16-25
DOI: 10.1021/bk-1988-0363.ch003
http://pubs.acs.org/doi/abs/10.1021/bk-1988-0363.ch003
------------------------------------------------------------------
Title: PHOTOCATALYTIC REDUCTION OF CARBON-DIOXIDE TO HYDROCARBON USING COPPER-LOADED TITANIUM-DIOXIDE
Author(s): ADACHI K; OHTA K; MIZUNO T
Source: SOLAR ENERGY Volume: 53 Issue: 2 Pages: 187-190 DOI: 10.1016/0038-... 阅读全帖
c*v
发帖数: 53
46
One old news in 2009.
http://www.treehugger.com/files/2009/02/china-birth-defects-pol
by Alex Pasternack, New York, NY on 02. 2.09
china newborn infant pollution birth defects photo
We know that China's pollution isn't good for its newborns. Recently, a
government official announced that birth defects are "constantly increasing,
" and that every 30 seconds, a baby is born with physical defects in China.
The statistic isn't new. But the official made clear something the
government has long been r... 阅读全帖
L*****r
发帖数: 722
47
来自主题: MedicalCareer版 - 糖尿病酮症酸中毒病人的治疗

Bohr effect
From Wikipedia, the free encyclopedia
Bohr effect is a property of hemoglobin first described in 1904 by the
Danish physiologist Christian Bohr (father of physicist Niels Bohr), which
states that an increasing concentration of protons and/or carbon dioxide
will reduce the oxygen affinity of hemoglobin. Increasing blood carbon
dioxide levels can lead to a decrease in pH because of the chemical
equilibrium between protons and carbon dioxide。
从上面的定义可以看出来,波尔效应适用于任何原因引起的酸中毒,因为任何酸中毒都
是inc
p****y
发帖数: 23737
48
【 以下文字转载自 Reader 讨论区 】
发信人: wonderlich (左岸,遁去), 信区: Reader
标 题: 朱棣文在哈佛大学毕业典礼上的演讲
发信站: BBS 未名空间站 (Sun Aug 29 11:26:24 2010, 美东)
朱棣文在哈佛大学毕业典礼上的演讲
来源:作者/原载:译者:阮一峰 时间:2009-08-06
演说日期:2009年6月4日
原文网址:http://www.news.harvard.edu/gazette/2009/06.04/chu_speech.html
在线观看:http://vimeo.com/5007822
音频下载:http://harvardmag.com/media/2009-commencement-day-chu.mp3 (17.5MB)
【演讲人介绍】
朱棣文(Steven Chu,1948年2月28日-),
美国物理学家,生于美国圣路易斯;华人血统,祖籍中国江苏太仓,曾获得诺贝尔物理
学奖(1997年)。现任美国能源部部长。
1970年,获罗彻斯特大学数学学士和物理学学士。
1976年,获加州大学伯克利分校物理... 阅读全帖
u****n
发帖数: 7521
49
http://www.newyorker.com/online/blogs/newsdesk/2010/12/the-top-ten-china-myths-of-2010.html
The Top Ten China Myths of 2010
Posted by Evan Osnos
1. Dissidents no longer matter in global diplomacy. Fact: After China joined
the World Trade Organization and hosted the Beijing Olympics, the image of
the impassioned, ink-stained inmate began to seem as retro as a Cold War spy
swap. When the presidents of China and the U.S. convened, they could hardly
be expected to have more than a ritual exchange of... 阅读全帖
H*H
发帖数: 472
50
来自主题: Military版 - 气候变暖不是骗局
S. Fred Singer拿着石油公司的经费,当然得替石油公司说话!各为其主罢了,这年头
,也就标新立异一下能上新闻了
Secondhand smoke
According to David Biello and John Pavlus in Scientific American, Singer is
best known for his denial of the health risks of passive smoking.[44] He was
involved in 1994 as writer and reviewer of a report on the issue by the
Alexis de Tocqueville Institution, where he was a senior fellow.[45] The
report criticized the Environmental Protection Agency (EPA) for their 1993
study about the cancer risks of passive smoking, ... 阅读全帖
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