TN
发帖数: 1870 | 1 Oil and Gas Companies Injected Cancer-Causing Chemicals During Fracking;
Backlash Grows
Drilling companies still claim that fracking, which involves shooting
chemicals and water underground to release gas, is safe but they are
increasingly fighting an uphill battle against facts.
The AP reported today that a new report by House Dems Henry Waxman of
California, Edward Markey of Massachusetts and Diana DeGette of Colorado
found that oil and gas companies injected millions of gallons of potentially... 阅读全帖 |
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c**i
发帖数: 6973 | 2 Three Aviation Week articles, in chronological order.
(1) Press release, COMAC selects Hamilton Sundstrand to provide C919
electric system. Hamilton Sundstrand, Apr 21, 2011.
http://www.hamiltonsundstrand.com/vgn-ext-templating
-hs/v/index.jsp?vgnextoid=16eaaec96b991110VgnVCM
1000007301000aRCRD&hsct=hs_news&ciid=efffa174d
2228210VgnVCM1000004f62529fRCRD
("Commercial Aviation Corporation of China, Ltd. (COMAC) has selected
Hamilton Sundstrand to provide the electric power generation and
distribut... 阅读全帖 |
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c**i
发帖数: 6973 | 3 You say, "你跟本不用查找专业文献，反渗透膜是porous 的高分子材料，有点高分子
物理知识的人都知道温度降低，高分子链的热物理性能和构型会发生改变，这样膜的孔
径就会收缩，透水率就会明显降低."
In the primary school, we learn that if we heat a metal with a hole, the
hole will be bigger. Search the Web, with the terms (metal hole heat).
What is used in reverse osmosis (RO) is not metal but polymer. Thus there is
nothing intuitive about how pore will behaves. Indeed emperically there are
two types of pores in a RO membrane.
(1) That temperature affects membrane permeability is a fact. ... 阅读全帖 |
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W***n
发帖数: 11530 | 4 This day in history – JAL Flight 123 Crashes
Posted on August 12, 2010 by admin
On 12 August 1985 crashed into a Boeing 747-SR46 of the Japanese airline JAL
Japan Airlines Flight 123, on the Tokyo International Airport to Osaka
Itami Airport at an altitude of 1460 meters from the mountain Takamagahara
in Gunma Prefecture, Japan, about 100 km from Tokyo station.
All 15 crew and 505 of the 509 passengers died in the disaster. It is the
heaviest flying accident with only one machine involved.
The B... 阅读全帖 |
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c******k
发帖数: 8998 | 5 Fire at Indian hospital kills 89 as staff flees
KOLKATA, India (AP) — Fleeing medical staff abandoned patients to a fire
that killed 89 people Friday as black smoke poured through the seven-story
hospital in this city in eastern India, officials said. Six administrators
were arrested.
Dwellers of a nearby slum who first noticed the smoke and fire rushed to the
AMRI Hospital to raise the alarm, but security guards kept them back,
saying it was only a small blaze, witnesses said.
It took firefight... 阅读全帖 |
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I***8
发帖数: 1949 | 7 看看这个纽约时报上发表的炸药奖得主的观点：
http://www.nytimes.com/2011/11/07/opinion/krugman-here-comes-so
Here Comes the Sun
By PAUL KRUGMAN
Published: November 6, 2011
For decades the story of technology has been dominated, in the popular mind
and to a large extent in reality, by computing and the things you can do
with it. Moore’s Law — in which the price of computing power falls roughly
50 percent every 18 months — has powered an ever-expanding range of
applications, from faxes to Facebook.
Our mastery of the ma... 阅读全帖 |
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R****a
发帖数: 6858 | 8 All Comments (29)
tygoo7 5 days ago
im concerened
Reply ·in reply to aaron martinez(Show the comment)
TheC4fire 5 days ago
i would like to say that we in the US have no ground to oppose the
construction of carriers by the Chinese Gov. Also they have the right
; to national defense just as much as we do. And BTW obi2012 we have 19.
Reply ·
obi2012 6 days ago
Chill, they have as many as the French and Russians, we have like
what, 10? And that isn't even counting amphibious ... 阅读全帖 |
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m***n
发帖数: 12188 | 9 有些例子令人觉得匪夷所思。
比如：
“靳薇举例，如引水工程，日喀则莎迦县在2001年项目投资50万，由外地
包工队修建引水管道，但到了冬天水管被冻爆，不久后水源枯竭，仅仅使用1年，饮水
项目彻底报废。而在拉萨市市区，英国救助儿童会（save the children UK）资助5万
元，并未使用外来包工队，而是让当地村民自主参与建设；村民们花了将近一年的时间
观察水源，在机构帮助下寻找最适合当地的材料，并成立自治小组设计路线、安排维护
管理。2003年这个项目完成后，一直正常使用到现在。”
作为一个 hydraulic engineer，冬天结冰，水源，这都是设计的基本常识，我也无法
相信设计者（假定那是一个同行）会不如村民？？
再说村民，我也是农村出来的，虽然不是西藏，村民自己挖井水平如何，我也知道。 |
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c******a
发帖数: 4400 | 10 你们知道hydraulic fracturing吧，就是fracking, MD取shale gas的办法，高压把水
打入地下crack中，反复抽插，液体寻找缝隙，造成无数微小地震，震得石头里含的气
体释放出来。这里面，微小地震（2级）是产气的关键。搞这名堂，只要一亩地就能行。
三峡大坝这个尺度，造成地震真不奇怪 |
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b******3
发帖数: 4385 | 11 Considering:
Energy saving from dominant climatic condition,
Land resources
Fresh water resources
Energy resources( wind ,hydraulic,miners) |
|
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c****h
发帖数: 4968 | 13 机翼上有很多控制飞行姿态的设备，失去一个引擎没什么，但是导弹可能把机翼上
Hydraulic System 破坏了，以至于飞机无法操控。 |
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s******s
发帖数: 13035 | 14 你才傻冒。我那一句说轻质油便宜来着？
美国本土炼油厂对Hydraulic Fracturing估计不足，本土没有足够的炼制能力，
所以出口。这么简单的道理，和贵贱毫无关系。 |
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c****g
发帖数: 37081 | 15 跟hydraulic fracturing有关吗？要是没关系，就洗洗睡了。 |
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m********5
发帖数: 17667 | 16 50%的水源砷和铊超标
However, state officials tested 8 water supply wells within a one-mile
radius of some of those wells.
Four water samples came back with higher than allowable levels of nitrate,
arsenic, and thallium.
Those same chemicals are used by the oil and gas industry in the hydraulic
fracturing process and can be found in oil recovery waste-water.
http://www.nbcbayarea.com/investigations/Waste-Water-from-Oil-F |
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t*****k
发帖数: 395 | 17 Oil at $40 Possible as Market Transforms Caracas to Iran
Bloomberg By Gregory Viscusi, Tara Patel and Simon Kennedy
2 hours ago
Oil's decline is proving to be the worst since the collapse of the financial
system in 2008 and threatening to have the same global impact of falling
prices three decades ago that led to the Mexican debt crisis and the end of
the Soviet Union.
Russia, the world's largest producer, can no longer rely on the same oil
revenues to rescue an economy suffering from European a... 阅读全帖 |
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s*****r
发帖数: 11545 | 18 http://finance.yahoo.com/news/ready-10-oil-230002605.html;_ylt=
By A Gary Shilling
At about $50 a barrel, crude oil prices are down by more than half from
their June 2014 peak of $107. They may fall more, perhaps even as low as $10
to $20. Here’s why.
U.S. economic growth has averaged 2.3 percent a year since the recovery
started in mid-2009. That's about half the rate you might expect in a
rebound from the deepest recession since the 1930s. Meanwhile, growth in
China is slowing, is minimal in t... 阅读全帖 |
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T**********e
发帖数: 29576 | 19
我觉得BD狗和自动驾驶汽车一样程度自动化，就是user给定一个目标或路线，狗靠自己
判断路况走过去，turn by turn不需要user遥控，但user可以随时选择遥控介入。山大
这个不知道是不是要随时遥控。
BigDog's on-board computer controls locomotion, processes sensors and
handles communications with the user. BigDog’s control system keeps it
balanced, manages locomotion on a wide variety of terrains and does
navigation. Sensors for locomotion include joint position, joint force,
ground contact, ground load, a gyroscope, LIDAR and a stereo vision system.
Other sensors focus on the internal ... 阅读全帖 |
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O*******d
发帖数: 20343 | 20 美国卖的castor oil就是蓖麻油。 网上卖蓖麻油的很多。
Castor oil is a vegetable oil obtained by pressing the seeds of the castor
oil plant (Ricinus communis).[1] The common name "castor oil", from which
the plant gets its name, probably comes from its use as a replacement for
castoreum, a perfume base made from the dried perineal glands of the beaver
(castor in Latin).[2]
Castor oil is a colorless to very pale yellow liquid with a distinct taste
and odor once first ingested. Its boiling point is 313 °C (595 °F) and i... 阅读全帖 |
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h******k
发帖数: 15372 | 21
远不止发动机，90%以上的部件承包商都是美欧的，甚至连机身的铝材都是美国厂商提
供：
制造商
中国商用飞机集团
供应商
管理/人事培训
美国罗克韦尔柯林斯公司 | News 飞行模拟系统
Back to top
复合材料
德国Evonik Roehm GmbH公司 | News 泡沫核心复合材料
美国Hexcel Composites公司 | News 碳纤维预应力复合材料
Back to top
金属材料
德国Aleris Aluminium Koblenz GmbH公司 | News 铝和铝板
美国RTI International Metals, Inc.公司 | News 钛和钛合金
Back to top
非金属材料
美国Cytec Engineered Materials, Inc.公司 | News 自粘合薄膜
Back to top
作动器部件
美国Eaton Aerospace, Actuation Systems Division | News 货舱门机电作动器
美国Moog Inc.公司 | News 举升机电作动器
法国S... 阅读全帖 |
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l*******s
发帖数: 7316 | 22 天冷的时候修铁轨要加热，正常温度的时候大概就不加热了。
https://en.m.wikipedia.org/wiki/Track_(rail_transport)#Continuous_welded_
After new segments of rail are laid, or defective rails replaced (welded-in)
, the rails can be artificially stressed if the temperature of the rail
during laying is cooler than what is desired. The stressing process involves
either heating the rails causing them to expand,[12] or stretching the
rails with hydraulic equipment. They are then fastened (clipped) to the
sleepers in their expanded fo... 阅读全帖 |
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发帖数: 1 | 23 安-24 所有事故：
1960s
1962
29 July 1962
A MAP Kiev MSZ An-24 (CCCP-46708) overran the runway at Sheremetyevo
Airport following an aborted takeoff.[1]
1965
20 March 1965
An Aeroflot An-24 (CCCP-46764) landed short of the runway at Khanty-
Mansiysk Airport, struck a snow drift and broke up, killing 43 of 47 on
board.[2]
1966
2 February 1966
A United Arab Airlines An-24 (SU-AOB) crashed at Luxor, Egypt during a
test flight.[3]
18 March 1966
United Arab Airlines Flight 749 crashed while a... 阅读全帖 |
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w*********r
发帖数: 42116 | 24 Scientific Study Links Flammable Drinking Water to Fracking
For the first time, a peer-reviewed scientific study has linked natural gas
drilling and hydraulic fracturing with a pattern of drinking water
contamination so severe that some faucets can be lit on fire. |
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i********y
发帖数: 192 | 25 憋最拿手的就是撒谎，表面跟真实的情况有很大的区别。 即使危机四伏也要营造出一
幅国泰民安的景象。
这个经济学家杂志的记者对中国的经济情况作了以下的描述。
看不懂的五毛自己想办法。
THE zombies that appear in Chinese legends are not quite the same as their
Western counterparts. They feast on blood, not brains, and hop about rather
than staggering forwards. The differences extend to economics. Chinese
officials, like their Western peers, openly fret about zombie companies—
insolvent firms kept alive by banks—but are far less willing to kill them
off. This small excursion into the world ... 阅读全帖 |
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发帖数: 1 | 26 作者：知乎用户
回答这个问题需要考古学技能。
在美国的国家历史地标列表里，有个古迹叫做Saturn V Dynamic Test Stand，建于
1964年，位于马歇尔太空中心，汉茨维尔，亚拉巴马州，建筑编号4450。
“大部分时间里，110米高的试验台顶部云雾缭绕，而140吨重的载物台从运输车上升入
塔中，据说这是亚拉巴马州最高的建筑。”
1966年，这里测试了土星五号的箭体
1978年，这里装下过企业号
还有整个航天飞机系统的全箭振动测试
当时这里有Team Corporation建造的世界上推力最大的液压激振器之一，22t液压驱动
器8联装，单台合计181t推力；（Hydrashakers became famous for their
application in vibration testing of the Apollo and Saturn Series of
spacecraft. One of the largest setups is still in use at NASA's Marshall
Space Flight Center. This sy... 阅读全帖 |
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w*****y
发帖数: 51 | 27 看Pan Am 6，人迫降的是太平洋，不是平静的哈德逊河，也没死人。那架DC-6B也比
A320难度大，没有后者的fly by wire，有报道说没有fbw的话，A320的机长输入在接触
水面前就导致stall了。
其实Pan Am 6都不算什么。03的DHL A300货机和89年的UA DC-10苏城空难，人都是
hydraulic流光了，纯靠differential thrusts降落。 |
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n********g
发帖数: 6504 | 28 嗯，在1891年，加州工程师估计有4亿吨岩石从内陆高山被水裂然后沉积在下游河床上。
以下出自维基：
There were decades of minor earthquakes – more than at any other time in
the historical record for northern California – before the 1906 quake.
Widely interpreted previously as precursory activity to the 1906 earthquake,
they have been found to have a strong seasonal pattern and have been
postulated to be due to large seasonal sediment loads in coastal bays that
overlie faults as a result of the erosion caused by hydraulic mining in the
later yea... 阅读全帖 |
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b********n
发帖数: 38600 | 29 Just because China drops a tariff doesn't mean there will all of a sudden be
an explosion in foreign goods flooding China. There is a reason why foreign
goods can't compete in the Chinese domestic market.
One is price and the other is nationalism. Where 20 years ago rich Chinese
wanted foreign brands, they now want Chinese brands. The realization that
foreign brands were just a Chinese made product with a label killed any want
for the label.
The Chinese want Chinese designed and manufactured pro... 阅读全帖 |
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发帖数: 1 | 30 Andrew Yang’s political stances
FILTERS
THE ECONOMY › TAXES
Should the U.S. raise taxes on the rich?
ANDREW YANG VOTERSLower the income tax rate and remove all existing tax
loopholes for large corporations
REFERENCES
DOMESTIC POLICY › GUN CONTROL
Should there be more restrictions on the current process of purchasing a gun?
PUBLIC STATEMENTSYes, require strict background checks, psychological
testing, and training
REFERENCES
THE ECONOMY › CORPORATE TAX
Should the U.S. ... 阅读全帖 |
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w********s
发帖数: 343 | 31 more problem surfaced: hydraulic and flight control systems
in addition to engine destruction |
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h*l
发帖数: 807 | 33 read between the lines,you can figure out what it means.
Assertion: F-22 production uses a shim line and national spreading of
suppliers has cut quality, thus the F-22 lacks interchangeable parts.
Fact: The F-22 does not have a shim line. During the earliest stages of
production while tooling was undergoing development, there were a few
aircraft with slight differences which were subsequently modified. The F-22
supplier base is the best in the industry, as demonstrated by the aircraft’
s high qu... 阅读全帖 |
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w****n
发帖数: 25644 | 34 【 以下文字转载自 Military 讨论区 】
发信人: timcook (gayceo), 信区: Military
标 题: oil直奔$40去了
发信站: BBS 未名空间站 (Sun Nov 30 20:01:58 2014, 美东)
Oil at $40 Possible as Market Transforms Caracas to Iran
Bloomberg By Gregory Viscusi, Tara Patel and Simon Kennedy
2 hours ago
Oil's decline is proving to be the worst since the collapse of the financial
system in 2008 and threatening to have the same global impact of falling
prices three decades ago that led to the Mexican debt crisis and the end of
the Soviet Union.
Russ... 阅读全帖 |
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e***s
发帖数: 1397 | 35 are you sure you know what you are talking about?
It seems you did not watch the stuff you posted yourself.
后再抽上来提纯。问题是抽上来的大约只有灌进去的一半，剩下的...全进地下水。
hydraulic fraction技术已经在六个州全面铺开，最近几年发展神速。
进大气。 |
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l****z
发帖数: 29846 | 36 Forget 'clean energy.' Oil and gas are boosting U.S. employment.
o President Obama was right all along. Domestic energy production really is
a path to prosperity and new job creation. His mistake was predicting that
those new jobs would be "green," when the real employment boom is taking
place in oil and gas.
The Bureau of Labor Statistics reported recently that the U.S. jobless rate
remains a dreadful 9%. But look more closely at the data and you can see
which industries are bucking the jobless... 阅读全帖 |
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l****z
发帖数: 29846 | 37 by Rick aka Mr. Brutally Honest
This, though spoken in 2010, has just surfaced, and it's revealing:
AlArmendarizSen. James Inhofe (R-OK) took to the Senate floor today to
draw attention to a video of a top EPA official saying the EPA’s “
philosophy” is to “crucify” and “make examples” of oil and gas
companies - just as the Romans crucified random citizens in areas they
conquered to ensure obedience.
Inhofe quoted a little-watched video from 2010 of Environmental
Protection Agency (EPA) o... 阅读全帖 |
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l****z
发帖数: 29846 | 38 EPA ‘Crucifixion’ Video Pulled From Youtube, The Liberal Cockroach Behind
the Move
April 28, 2012
Earlier in the week a video surfaced on Youtube of Al Armendariz, head of
the EPA office in Dallas, saying that he and his agency planned to “crucify
” any business that crosses them. The video caused a lot of consternation
on Capitol Hill as well as recriminations for the EPA. But by Friday the
video had been pulled by Youtube because of complaints from the man that
originally made the video. Turn... 阅读全帖 |
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l****z
发帖数: 29846 | 39 By Jeffrey Folks
Obama's campaign speeches always seem to include a line about how he can
take credit for increasing domestic oil and gas production. As the official
White House website has it, "domestic oil and gas production has increased
every year President Obama has been in office."
On Wednesday, however, his administration put into effect yet another new
regulation making it harder for America's oil and gas companies to increase
production. In fact, that regulation, as the head of the Am... 阅读全帖 |
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l****z
发帖数: 29846 | 40 Lower and Simpler Rates Should Be Washington's Priority, Manufacturers Say
By JAMES R. HAGERTY
Manufacturing is back in vogue as part of the solution to America's job
shortage. After years of decline, factory employment has been edging up for
the past two years, and some production has trickled back to the U.S. from
Asia. So look for political candidates this fall to talk about how to spur
investment in factories.
Manufacturing jobs aren't the whole answer to the job shortage, of course.
They ac... 阅读全帖 |
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l****z
发帖数: 29846 | 41 Tiny Texas Town, Railroad Surge From New Oil Boom .
By RUSSELL GOLD
BARNHART, Texas—It was a railroad that brought this tiny town into
existence in 1910, when it was named after the stationmaster, William F.
Barnhart. Today that same railroad is putting the town on the map again—as
an unlikely hub of the new American oil boom.
Crude oil production in West Texas is&#
8197;surging again, and a little railroad that
nearly̳... 阅读全帖 |
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a**e
发帖数: 8800 | 42 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 |
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l****z
发帖数: 29846 | 43 Parents: Colorado Teacher Censored Views On Fracking For Middle School
Students
via Breitbart Feed
Student protestors in Jefferson County (JeffCo), Colorado have walked out of
classes this past week, claiming that a reform-minded school board member’
s proposal to review the new A.P. U.S. History curriculum (APUSH) intended
to censor their views. Last year, however, parents accused a teacher at a
JeffCo middle school of presenting only one side of the story on fracking.
As local ABC 7News Denver... 阅读全帖 |
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l****z
发帖数: 29846 | 44 国际油价今年以来已经跌了近4成。12月初在新唐人电视台的《热点互动》节目上远程
做客，主持人芳菲女士问及对当前世界油价下跌的背后原因，和对中国人圈子里流行的
两种阴谋论的看法。这两种阴谋论呢，芳菲说，一种认为是美国主导的针对俄罗斯的阴
谋，俄国总统普京支持这种说法。另一个说法则是沙特阿拉伯在背后操纵，让美国的页
岩油生产商承压，当海外油价较低时，成本较高的这些生产商将更难以参与竞争。
不管从什么角度看，这两种阴谋论都根本站不住脚，甚至有些可笑，它们都极具“中国
特色”，很像是从共产党毒害下的中国人狭隘的观点上推演出来的。说石油价格下跌是
美国的阴谋、是美国因为俄罗斯入侵乌克兰而给予制裁的人们可能忘记了，国际社会对
俄罗斯入侵乌克兰的制裁，都是完全公开、透明的，目标、手段和目的都非常清晰的。
美国本来就要公开的给予制裁，也不需要用什么阴谋的方法去做。
依国家利益各自行事
至于沙特阿拉伯，它是美国在中东地区非常可靠的盟友，沙特需要美国的保护和协助稳
定地区的和平，沙特不需要、也不可能对美国实施什么阴谋。正如一起在节目上做客的
程晓农博士和许多海外学人指出的那样，这些阴谋论大都是中国的媒体和... 阅读全帖 |
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l****z
发帖数: 29846 | 45 Now I understand why the climate change crazies try to cut off all debate
on their unproven hypothesis. So many of their leading supporters are
frothing at the mouth, over the line, nucking futz! Witness biologist Sandra
Steinberger, the woman who receives some the credit for convincing Cuban
traveler, NY Governor Andrew Cuomo to ban fracking in the People's Republic
of NY. According to MS. Steinberger the only jobs for women created by
fracking are for hookers and maids.
Ms. Steinberger is a b... 阅读全帖 |
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l****z
发帖数: 29846 | 46 GAO: Gov't waste of natural gas costing taxpayers millions
By HOPE YEN | May 6, 2015 | 3:15 PM EDT
WASHINGTON (AP) — Significant amounts of natural gas on federal lands are
being wasted, costing taxpayers tens of millions of dollars each year and
adding to harmful greenhouse gas emissions, a congressional investigation
has found.
The nonpartisan Government Accountability Office also said the Bureau of
Land Management failed to conduct production inspections for hundreds of
high-priority oil and ... 阅读全帖 |
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l****z
发帖数: 29846 | 47 http://dailycaller.com/2016/04/22/7-enviro-predictions-from-ear
Environmentalists truly believed and predicted during the first Earth Day in
1970 that the planet was doomed unless drastic actions were taken.
Humanity never quite got around to that drastic action, but
environmentalists still recall the first Earth Day fondly and hold many of
the predictions in high regard.
So this Earth Day, The Daily Caller News Foundation takes a look at
predictions made by environmentalists around the original... 阅读全帖 |
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发帖数: 1 | 48 本周，唐纳德特朗普(Donald Trump)在中国打赢了长达拾年的商标纠纷案。然而，在公
司名称使用这位美国总统姓名——比如特朗普娱乐发展公司(Trump Recreational
Development Co)和辽宁特朗普汽车租赁公司(Liaoning Trump Auto Rental)——的情
况几乎肯定会延续下去。
周二，特朗普在建筑服务领域获得“特朗普”专有使用权，为期10年。但专家说，公司
名称和注册并非办公室管辖权的一部分，不受特朗普此次胜诉的影响。
过去拾年里，在中文公司名中使用世界领导人姓名的做法已很普遍。苏州市默克尔液压
系统有限公司(Suzhou Merkel Hydraulic Systems)和福建奥巴马资产管理公司(Fujian
Obama Asset Management )已存在了很多年。
2008年，普京陶瓷有限公司(Putin Ceramics)在注册于江西省专门，从事浴室产品业务
，而连江县黄岐镇的克林顿女性服饰公司(Clinton Women’s Apparel)在福建省销售服
装。
自从2016年初以来，特朗普字样被注册到公司名称中的现象非常... 阅读全帖 |
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发帖数: 1 | 49 尼古拉·特斯拉 （塞尔维亚裔美籍科学家） 编辑
尼古拉·特斯拉（Nikola Tesla，1856年7月10日~1943年1月7日），塞尔维亚裔美籍发
明家、机械工程师、电气工程师。他被认为是电力商业化的重要推动者之一，并因主持
设计了现代交流电系统而最为人知。在迈克尔·法拉第发现的电磁场理论的基础上，特
斯拉在电磁场领域有着多项革命性的发明。他的多项相关专利以及电磁学的理论研究工
作是现代的无线通信和无线电的基石。[1-2]
中文名 尼古拉·特斯拉 外文名 Nikola Tesla、Никола Тесла 别 名
尼科·特斯拉（Niko Tesla） 国 籍 奥匈帝国（后移民美国） 民 族 塞尔维亚
族（南斯拉夫人） 出生地 克罗地亚 出生日期 1856年7月10日 逝世日期 1943年1月7
日 职 业 发明家、机械工程师、电气工程师 毕业院校 格拉茨理工大学（实际未毕
业） 信 仰 塞尔维亚东正教 主要成就 交流电系统、无线电系统、无线电能传输、
雷达、放大发射机 代表作品 《My Inventions》《The Dynamic Theory of... 阅读全帖 |
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发帖数: 1 | 50 一个已退休的 FBI SWAT leader 说：凌晨六点是执行法院拘捕令的正常时间，趁嫌犯
意志不清，没有机会反抗或摧毁证据。
https://www.cnn.com/2019/01/31/opinions/lindsey-graham-roger-stone-fbi-raid-
response-gagliano/index.html
Why was it necessary to arrest Mr. Stone at his home in the early morning
hours rather than working through his attorneys to permit him to surrender
voluntarily?
Because federal arrests typically occur at 6 a.m. local time. In other words
, this is the usual course of action -- what our criminal justice system
considers a reaso... 阅读全帖 |
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