l******j
发帖数: 1728 | 1 有这时间硬拗，不如花点时间看看真实数据：
http://www.isro.org/mars/spacecraft.aspx
Lift-off Mass 1337 kg
Structures Aluminum and Composite Fiber Reinforced Plastic (CFRP)
sandwich construction-
modified I-1 K Bus
Mechanism Solar Panel Drive Mechanism (SPDM), Reflector & Solar panel
deployment
Propulsion Bi propellant system (MMH + N2O4) with additional safety and
redundancy features for MOI. Proplellant mass:852 kg
Thermal System Passive thermal control system
Power System Single Solar Array-... 阅读全帖 |
|
M*****n
发帖数: 16729 | 2 jet propeller, 跟宇航员穿的那个差不多。
以后大家都穿那个在天上飞了，不用汽车自行车了 |
|
t********t
发帖数: 1070 | 3 这就是美国的傻逼科学家，虽然没有任何科学依据，可大嘴一张，什么屁都敢放。
1. 落月前，美国科学家关于嫦娥3落月对月球外层大气影响的断言：
November 21, 2013
Significant contamination
"The arrival of the Chang'e 3 spacecraft into lunar orbit and then its
descent to the surface will result in a significant contamination of the
lunar exosphere by the propellant," saidJeff Plescia, a space scientist at
Johns Hopkins University's Applied Physics Laboratory in Laurel, Md. Plescia
also chairs NASA's Lunar Exploration Analysis
而实际结果是：
Surprisingly, the LADEE science team... 阅读全帖 |
|
T**********e
发帖数: 29576 | 4 This might be a bigger hit than Tesla for Elon Musk
Can Elon Musk's other big project, SolarCity, transform the power industry
the way Tesla is transforming autos?
The 42-year old engineer and entrepreneur saw two of his publicly traded
companies – Tesla and SolarCity, a company he founded with his cousins, the
Rive brothers – nearly quintuple in price over the last year. While Tesla
seeks to transform automobiles with its high-end electric-powered luxury
vehicles, SolarCity is trying to revolut... 阅读全帖 |
|
T**********e
发帖数: 29576 | 5 看这个falcon heavy把三个火箭总共27发动机绑一起发射，价格709刀一磅，估计还有
的赚。Elon的目标是把原有发射成本降低10倍。
SpaceX – Breaking the $1000 per Pound Launch Cost Barrier
John Strickland explains how SpaceX can drive launch costs to less than one
tenth that of competing rocket systems:
“When people see this cost comparison, they ask all over again ‘How
can he (Musk) do that?’ How can the Falcon outperform the Delta by such a
wide margin? The three main reasons seem to be (1) low manufacturing cost (2
) low operational cost (time ef... 阅读全帖 |
|
T**********e
发帖数: 29576 | 6
nasa造火箭用的那些contractor都太贵了，shuttle一个出发点是降低成本，但是越搞
越贵。spacex的现在路子是主要自造，有的直接拿nasa的技术自己造。
Significantly, the Merlin engines—like roughly 80 percent of the components
for Falcon and Dragon, including even the flight computers—are made in-
house. That’s something SpaceX didn’t originally set out to do, but was
driven to by suppliers’ high prices. Mueller recalls asking a vendor for an
estimate on a particular engine valve. “They came back [requesting] like a
year and a half in development and hundred... 阅读全帖 |
|
c****g
发帖数: 37081 | 7 印度海军又出事了。周四晚间，艾拉瓦特号两栖登陆舰在返港时受损。据消息人士透露
，这起事故的原因是因为登陆舰误开进了港口疏浚通道。
艾拉瓦特号（由加尔各答的加登里奇造船与工程有限公司建造）在返港时，螺旋桨撞击
到了地面，虽然船体受损情况并非很严重，但这一事件表明，海军的导航系统存在误差。
该舰于2009年5月19日服役，目前隶属于维萨卡帕特的东部舰队。
在满载的情况下，该舰自持力为45天。
艾拉瓦特可搭载500名士兵，主要用于两栖攻击。也可为其它舰只进行油料补给。
舰上有全套的医疗设施。可在人道主义援助和救灾（海啸和飓风等自然灾害）方面发挥
巨大作用。
http://bbs.tiexue.net/post_7059156_1.html
三哥V5。
In yet another setback for the Indian Navy, its amphibious ship INS Airavat
suffered damages while returning back to the harbour on Thursday night.
According to the sources,... 阅读全帖 |
|
z*****4
发帖数: 835 | 8 搜了下wiki，发现除了毛子以外，PLA、NATO还有许多大国小国都有打飞机的历史。
http://en.wikipedia.org/wiki/List_of_airliner_shootdown_inciden
1940s[edit]
Kaleva OH-ALL[edit]
Main article: Kaleva (airplane)
Junkers Ju 52-3/mge "Kaleva" OH-ALL was a civilian transport and passenger
plane operated by the Finnish carrier Aero O/Y, shot down by two Soviet
Ilyushin DB-3 bombers on June 14, 1940, while en route from Tallinn, Estonia
, to Helsinki, Finland.[1] This occurred during the Interim Peace between
Finland and the Soviet Union, t... 阅读全帖 |
|
c******n
发帖数: 5697 | 9 Eleven years ago, a shiny silver Boeing 727 airliner took off from Luanda,
Angola, and became one of the few commercial jetliners to vanish and never
be found.
Massive jet airplanes disappear more often in fiction than in real life, but
it does happen. In 1979, a Boeing 707 with six people aboard was lost in
the Pacific Ocean after leaving Tokyo. And dozens of smaller planes have
gone missing and never been located.
The Aviation Safety Network, a database tracking accidents, lists 80 planes
as "... 阅读全帖 |
|
t****z
发帖数: 8931 | 10 Inventions and improvements
Notable Canadian inventions and improvements to existing technologies
include:
Computing and Animation
Key frame animation was co-invented by Nestor Burtnyk and Marcelli Wein at
the NRC in the 1970s.[1]
Multi-Dynamic Image Technique was invented by Christopher Chapman in 1967.
IMax Movie System was co-invented by Grahame Ferguson, Roman Kroitor, and
Robert Kerr in 1968.[2]
The trackball was first built for the DATAR computer (although the concept
was first mentioned i... 阅读全帖 |
|
T**********e
发帖数: 29576 | 11 给国际空间站补给飞船。一级火箭装了回收支架，在大西洋控制降落成功。
SpaceX Claims Milestone With Bold Reusable Rocket Test
SpaceX's audacious plan to return a rocket to Earth after a space launch
today (April 18) may not have gone perfectly, but the company's founder
still considers it a success — one that could help lay the foundation for
fully reusable rockets in the future.
SpaceX tried to guide the first stage of its Falcon 9 rocket back to Earth
in an ocean splashdown today during the launch of the company's unmanned
Drago... 阅读全帖 |
|
T**********e
发帖数: 29576 | 12 Chi Mak看样子从70年代香港移民过来前就开始潜伏了，和家里老婆两个都是毛轮，生
活习惯极其猥琐，在报纸上吃饭不用洗碗，充分利用免费洗车还一丝不苟地蹭免费咖啡
， 把跟踪FBI探员都看傻了。
最后兄弟两家带老婆孩子都被判刑。
How the F.B.I. Cracked a Chinese Spy Ring
In the magazine earlier this month, I wrote about Greg Chung, a Chinese-
American engineer at Boeing who worked on NASA’s space-shuttle program. In
2009, Chung became the first American to be convicted in a jury trial on
charges of economic espionage, for passing unclassified technical documents
to China.
While reporting the story, I learned... 阅读全帖 |
|
s******g
发帖数: 3530 | 13 GM 新的 CEO 真是倒霉
GM has recalled more than 20 million vehicles worldwide since January.
http://money.cnn.com/2014/06/27/news/companies/gm-four-more-rec
General Motors on Friday announced four safety recalls covering nearly 430,
000 vehicles in the U.S.
The recall covers nearly 30,000 air bag inflators in 2013-2014 model year
Chevrolet Cruze sedans. GM (GM) says the inflators could fail or rupture,
which could propel metal pieces that could injure the driver. GM says its
aware of one injury related... 阅读全帖 |
|
w********t
发帖数: 12853 | 14 By MICHAEL PREGENT And MICHAEL WEISS
Aug. 12, 2014 6:55 p.m. ET
The Islamic State of Iraq and al-Sham, aka ISIS, captured hundreds of
millions of dollars of U.S. military equipment as the Iraqi Security Forces
fled the terrorist group's advance on Mosul in June. The result is that ISIS
now has some very sophisticated weapons it is using to take and hold
territory in Syria and Iraq.
Yet ISIS is not nearly so invincible as its weaponry and territorial gains
have made it seem. The terror group has ... 阅读全帖 |
|
T**********e
发帖数: 29576 | 15 原来Orbital还买了苏联登月火箭剩下的发动机，毛子自己怎么不用？
There, in the Soviet Union, rocket scientists conceived and built dozens of
rocket engines meant to power Russian astronauts into the cosmos. But it
didn’t work out that way.
Instead, all four launches of the mighty N1 Soviet rocket, which used an
earlier iteration of the first-stage engines used in Thursday’s launch,
failed between 1969 and 1972. And as the Soviet Union abandoned the idea of
putting cosmonauts on the moon, those engines languished in Russia “w... 阅读全帖 |
|
T**********e
发帖数: 29576 | 16 本月发射的F9火箭一级计划海上平台回收。
SpaceX’s next launch is set for Dec. 16 from Cape Canaveral with an
unmanned Dragon cargo ship carrying more than 3,700 pounds of supplies and
experiments for the International Space Station.
After releasing the rocket’s upper stage to propel the Dragon supply ship
into orbit, the lower part of the booster will fire a subset of its nine
engines for a re-entry burn to guide it toward a designated landing zone in
the Atlantic Ocean northeast of Cape Canaveral.
The rocket will ... 阅读全帖 |
|
T**********e
发帖数: 29576 | 17 Musk宣布出钱要在德州建个5哩长的hyperloop实验段，太阳能光板铺在管道上面产能，
时速1000公里以上。
Elon Musk plans to build Hyperloop test track
The CEO of SpaceX and Tesla wants to speed up the development of 800-mph
tube transport. He's willing to pay for testing -- most likely in Texas --
to make it happen.
Billionaire and entrepreneur Elon Musk is getting more hands-on with the
Hyperloop.
Musk, who heads up both space transportation outfit SpaceX and electric-
vehicle maker Tesla Motors, casually announced via Twitter on Thursday t... 阅读全帖 |
|
f**e
发帖数: 3343 | 18 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 |
|
T**********e
发帖数: 29576 | 19 ULA的新Vulcan火箭要只回收一级发动机，燃料罐就扔了，发动机分离后打开一个防热
罩，然后降落伞减速，直升飞机半空中捕捉。
A sample illustration of mid-air recovery of main engine section.
ULA chief explains reusability and innovation of new rocket
CAPE CANAVERAL — United Launch Alliance will salvage the main engines
through a mid-air recovery plan and reuse them again aboard the company’s
new Vulcan rocket, saving 90 percent in booster propulsion costs, the
company announced Monday.
It is dubbed SMART Reuse, or Sensible Modular Autonomous Return Techno... 阅读全帖 |
|
m***a
发帖数: 13878 | 20 CAPE CANAVERAL, Fla. (Reuters) - Two years after unveiling plans for a
futuristic, high-speed Hyperloop transportation system, technology
entrepreneur Elon Musk announced plans for building a test track in southern
California and a competition for prototype pods, documents obtained by
Reuters show.
As described in Musk's 57-page white paper, the solar-powered Hyperloop
would shoot passengers in enclosed capsules through low-pressure steel tubes
at up to 800 mph (1,288 kph).
Several companies sub... 阅读全帖 |
|
b*****d
发帖数: 61690 | 21 (CNN)The U.S. military will be sending dozens of tanks, Bradley armored
fighting vehicles and self-propelled howitzers to allied countries in the
Baltics and Eastern Europe in response to Russian actions in the Ukraine,
Defense Secretary Ash Carter said Tuesday. |
|
f***y
发帖数: 4447 | 22 中国人摇橹，印第安人也摇橹，可能中国人真到了美洲。
https://en.wikipedia.org/wiki/Sculling
Single-oar sculling is the process of propelling a watercraft by moving a
single, stern-mounted oar from side to side while changing the angle of the
blade so as to generate forward thrust on both strokes. The technique is
very old and its origin uncertain, though it was probably discovered
independently several times by different peoples. It is known to have been
used in ancient China,[4] and on the Great Lakes of North America by... 阅读全帖 |
|
B*****t
发帖数: 820 | 23 Living in a Soft Money World
April 2, 2012
By
Felicia B. LeClere
~with apologies to Madonna
"You do know that this position is funded entirely on soft money, right?"
This can be an unsettling to hear early in a research career. "Soft money"
is a polite euphemism for funding that comes from a source outside a
university or research institute and must be pursued regularly and with
vigor. The "soft" part means the money can be both uncertain and impermanent
, neither of which are adjectives one wou... 阅读全帖 |
|
G*******n
发帖数: 6889 | 24 操，跟说毛子对华沙见死不救一样 (还有去看华西列夫斯基的回忆录)：
http://www.airpower.maxwell.af.mil/airchronicles/bookrev/glantz
"...
In April 1945, Stalin abrogated the neutrality pact and commenced a massive
redeployment effort that doubled the number of Soviet forces in the Far East
to 80 divisions. During the months of May to July 1945, more than 40
divisions were transferred from East Prussia and Czechoslovakia in the heart
of Western Europe via the Trans-Siberian Railroad to the Mongolian and
Manchurian border areas. In... 阅读全帖 |
|
d***b
发帖数: 376 | 25 发信人: saturnV (土星五号), 信区: Military
标 题: SpaceX回收火箭的经济学
发信站: BBS 未名空间站 (Tue Dec 22 02:05:09 2015, 美东)
ELON MUSK分析过火箭的发射成本，他发现推进剂Propellant只占大概0.3%的发射费用
。 也就是说，SPACEX现在6千万美金的发射费用里面，用在燃料上面的也就20万刀。而
火箭第一级的成本大概占到整个发射成本的70%，如果能够多次重复使用，每次重新注
入燃料，哪怕为了返回多带一点燃料也加不了多少，就基本可以把这个70%省掉。
http://shitelonsays.com/transcript/spacex-press-conference-at-t |
|
d***b
发帖数: 376 | 26 发信人: saturnV (土星五号), 信区: Military
标 题: SpaceX回收火箭的经济学
发信站: BBS 未名空间站 (Tue Dec 22 02:05:09 2015, 美东)
ELON MUSK分析过火箭的发射成本，他发现推进剂Propellant只占大概0.3%的发射费用
。 也就是说，SPACEX现在6千万美金的发射费用里面，用在燃料上面的也就20万刀。而
火箭第一级的成本大概占到整个发射成本的70%，如果能够多次重复使用，每次重新注
入燃料，哪怕为了返回多带一点燃料也加不了多少，就基本可以把这个70%省掉。
http://shitelonsays.com/transcript/spacex-press-conference-at-t |
|
|
S******8
发帖数: 24594 | 28 Falcon 9 first stage on our droneship in the Atlantic after propelling the
Dragon spacecraft to the @Space_Station |
|
c*********d
发帖数: 9770 | 29 http://cn.nytimes.com/business/20160330/c30mag-hedgefund1/dual/
The Fall of China’s Hedge Fund King
By ALEX W. PALMER March 30, 2016
中国“私募一哥”的覆灭
ALEX W. PALMER 2016年3月30日
At 10:33 a.m. on Sunday, Nov. 1 of last year, the highway police in Ningbo,
an industrial city on China’s eastern coast, posted a seemingly innocuous
message to their official microblog. “Due to sudden traffic control,” the
message read, “all the entrances and exits of the G15 Expressway at
Hangzhou Bay Bridge have been closed.... 阅读全帖 |
|
b*****d
发帖数: 61690 | 30 Apple Inc (AAPL.O) said on Thursday it has invested $1 billion in Chinese
ride-hailing service Didi Chuxing, a move that Apple Chief Executive Tim
Cook said would help the company better understand the critical Chinese
market.
The tech giant's rare investment gives it a stake in two burgeoning waves of
technology - the sharing economy and car technology - as the iPhone
business that propelled it to record profitability shows signs of maturing.
Apple is trying to reinvigorate sales in China, wher... 阅读全帖 |
|
w******g
发帖数: 2047 | 31 Commentary: Why Hillary will probably win
70 Comments 80 Shares Tweet Stumble Email
During the Republican convention in Cleveland, I found myself talking with a
GOP operative involved with the Trump campaign. Unprompted, he laid out two
scenarios for how this election could work out. In scenario one, Trump gets
a rather surprising, Brexit-esque surge that propels him to victory. In the
second, Trump gets wiped out, winning only the deep-red states.
That less-than-bullish assessment was h... 阅读全帖 |
|
|
m**c
发帖数: 7349 | 33 Statement from SpaceX President and COO, Gwynne Shotwell:
鈥淲e deeply regret the loss of Amos-6.聽 Our number one priority is to
safely and reliably return to flight for our customers, and we will
carefully investigate and address this issue.聽 We are grateful for the
continued support that our customers have expressed to us.鈥br />
September 1, 1:28pm EDT聽
At approximately 9:07 am ET, during a standard pre-launch static fire test
for the AMOS-6 mission, there was an anomaly at SpaceX鈥檚 Cape Canaver... 阅读全帖 |
|
b********n
发帖数: 38600 | 34 http://www.businessinsider.com/microsoft-windows-10-needs-to-improve-2016-10
Microsoft is set to unveil a bunch of new hardware on Wednesday, with the
star attraction likely to be a new Surface PC to compete with Apple's all-in
-one iMac.
Microsoft is billing this event as the future of Windows 10. That's not
surprising: The reason Microsoft got into the Surface business in the first
place was to push Windows forward into a touchscreen future, whether PC
manufacturers wanted it or not.
But we're... 阅读全帖 |
|
f******t
发帖数: 19544 | 35 发信人: futurist (展望未来), 信区: Military
标 题: Re: 俄罗斯亮家伙了
发信站: BBS 未名空间站 (Wed Oct 26 00:29:54 2016, 美东)
M109 self-propelled, M114 towed howitzers and M198 towed howitzers
delivering 155mm W48 nuclear weapon starting in 1963 |
|
f******t
发帖数: 19544 | 36 发信人: futurist (展望未来), 信区: Military
标 题: Re: 俄罗斯亮家伙了
发信站: BBS 未名空间站 (Wed Oct 26 00:29:54 2016, 美东)
M109 self-propelled, M114 towed howitzers and M198 towed howitzers
delivering 155mm W48 nuclear weapon starting in 1963 |
|
C****t
发帖数: 3813 | 37 【 以下文字转载自 USelection 俱乐部 】
发信人: CalCat (北加猫), 信区: USelection
标 题: 65% of Asian for Hillary 2016; 73% for Obama 2012
发信站: BBS 未名空间站 (Wed Nov 9 16:36:35 2016, 美东)
(CNN)Hillary Clinton just couldn't hold onto the Obama coalition. And that
proved to be a large part of her undoing.
African-American, Latino and younger voters failed to show up at the polls
in sufficient numbers Tuesday to propel Clinton into the White House.
Clinton conceded the race after 2 a.m. ET. Before polls closed her campaign... 阅读全帖 |
|
|
c********e
发帖数: 4283 | 39 那不叫学游泳，那叫玩水。我儿子学了几个月就能在水里打水前进了，两个手臂合起来
前置做streamline的姿势，然后靠两腿用自由泳的动作打水。4岁多点就这么上了，我
刚开始担心得不行，怕他到了深水区淹死，现在是不怕了，现在他已经可以用蝶泳的打
腿动作propel前进了，蛙泳的腿部动作最难现在还在练。
我们是没想让他参加比赛，就是学门技能，游泳也能健身，以后长得高点。但他的教练
用的方式就是以前国内游泳队的方式。所以...无所谓了，只要孩子吃得消，吃点苦也
没什么。 |
|
k**********4
发帖数: 16092 | 40 37,500 soldiers, sailors, airmen and Marines
140 M1A1 tanks
170 Bradley armored vehicles
30 150mm self-propelled howitzers
30 MRLs (multiple rocket launchers)
A wide range of surface-to-surface and surface-to-air missiles
70 AH-64 helicopters
100 aircraft, including 70 F-16 fighter planes, 20 A-10 anti-tank attack
planes, U-2 reconnaissance aircraft and transport aircraft capable of
launching "all-weather attacks." |
|
发帖数: 1 | 41 安-24的衍生型安-26的事故，最新是2017年：
1982 Ethiopia. On 14 January 1982, an Ethiopian Air Force An-26 crashed near
Addis Ababa, killing 73 Ethiopian, Libyan and Cuban troops.
1985 Afghanistan. On 4 September 1985, a Bakhtar Afghan Airlines An-26 was
shot down by a SAM near Kandahar, killing all 52 people on board.
1986 Mozambique. On 30 March 1986, a Mozambique Air Force An-26 crashed
while trying to land at Pemba Airport. All three crew and 41 of the 46
passengers were killed.
1988 Angola. On 27 April 1988... 阅读全帖 |
|
m*******e
发帖数: 1598 | 42 BY TINA AMIRTHA8 MINUTE READ
This story contains interviews with Christian Kästner, assistant
professor at Carnegie Mellon University; Amy Hirotaka, state policy and
advocacy manager at Code.org; and Janet Siegmund, researcher at the
University of Passau.
In order to expose more students to computer science, 17 states have passed
legislation to create basic math and science requirements in the curriculum,
rather than count them as electives. But lawmakers in Texas have made
computer program... 阅读全帖 |
|
C*I
发帖数: 4736 | 43 在中国大国和大手笔的财政支援和以色列的技术帮助下，印度的弹道导弹军工从1950年
开始算起，前前后后，持之以恒续续的搞了70年，到现在为止，研发出了三大独立系列
的，全天候，陆海空，短，中，长程/洲际型全部弹道导弹系列。
Prithvi Missile Series
Prithvi Missiles are tactical surface-to-surface short-range ballistic
missiles
大地导弹系列：中短程弹道导弹。 其中，大地—III，由两级火箭推进，射程为600公
里，可携带战术核弹头。现在装备印度陆海空各军种，具体数量古详。
Name Stage(s) Range Payload
Prithvi-I (SS-150) One 150 km 1000 kg
Prithvi-II (SS-250) Two 350 km 1000 kg
Prithvi-III (SS-350) Two 600 km 500 kg
Dhanush is... 阅读全帖 |
|
C*I
发帖数: 4736 | 44 在中国大手笔的财政支援和以色列的技术帮助下，印度的弹道导弹军工从1950年开始算
起，前前后后，持之以恒续续的搞了70年，到现在为止，研发出了三大独立系列，全天
候，陆海空，短，中，长程/洲际型全部弹道导弹系列。
Prithvi Missile Series
Prithvi Missiles are tactical surface-to-surface short-range ballistic
missiles
大地导弹系列
中短程弹道导弹。 其中，大地—III，由两级火箭推进，射程为600公里，可携带战术
核弹头。现在装备印度陆海空各军种，具体数量古详。
Name Stage(s) Range Payload
Prithvi-I (SS-150) One 150 km 1000 kg
Prithvi-II (SS-250) Two 350 km 1000 kg
Prithvi-III (SS-350) Two 600 km 500 kg
Dhanush is a s... 阅读全帖 |
|
d***o
发帖数: 3770 | 45 Amazon.com founder and The Washington Post owner Jeffrey P. Bezos on
Thursday briefly became the richest person in the world, displacing
Microsoft founder Bill Gates.
Bezos’s rise to No. 1 followed a surge in Amazon.com shares Thursday ahead
of the online retailer’s earnings report due out later in the day. The
company’s shares have been on a tear over the past year, passing the $1,000
mark and hitting $1,082 around noon on Thursday, propelling Bezos, 53, to $
90.6 billion compared with Gates’s ... 阅读全帖 |
|
发帖数: 1 | 46
Chinese media thinks PLA can annihilate Indian Army. Can they? A fact check
尽管印军人数劣势，但是如果Doklam对峙引发战争，印军可以打得中国人民解放军流鼻
血。
Despite numerical inferiority, the Indian Army may give the People's
Liberation Army of China a bloody nose if Doklam standoff leads to war.
Prabhash K Dutta
New Delhi, August 5, 2017 | UPDATED 17:42 IST
A +A -
Peoples Liberation Army of China: Picture for representation
HIGHLIGHTS
1Including reserve components, India has more troops than China.
2India and China are equa... 阅读全帖 |
|
d*b
发帖数: 4453 | 47 常识个屁，我不光给你当老师，我给你爹当老师都绰绰有余!
在中国大国和大手笔的财政支援和以色列的技术帮助下，印度的弹道导弹军工从1950年
开始算起，前前后后，持之以恒续续的搞了70年，到现在为止，研发出了三大独立系列
的，全天候，陆海空，短，中，长程/洲际型全部弹道导弹系列。
Prithvi Missile Series
Prithvi Missiles are tactical surface-to-surface short-range ballistic
missiles
大地导弹系列：中短程弹道导弹。 其中，大地—III，由两级火箭推进，射程为600公
里，可携带战术核弹头。现在装备印度陆海空各军种，具体数量古详。
Name Stage(s) Range Payload Prithvi-I (SS-150) One
150 km 1000 kgPrithvi-II (SS-250) Two 350 km 1000 kg
Prithvi-III (SS-350) Two 600 k... 阅读全帖 |
|
k****o
发帖数: 83 | 48 该活动是一次全球性的技术方案大竞赛，开辟了很多分类组。
提交方案的收稿、初选酝酿期为3个月，半决赛1个月，决赛1个月。3天前截稿期已到，
各组都收到了大量技术方案书。
组委会配备了各方面的专家教授，将严格筛选进入半决赛、总决赛的名单，并为各组各
类获奖者颁发1万美元，并引荐给世界知名大财团供其投资参考，或MIT亲自孵化。围观
的风险投资公司、天使基金等小投资人等，虽无美国麻省理工大学的关照，但仍可根据
自己的兴趣半途利诱“拉客”。
全球的吃瓜群众，也可自由注册帐号后，参与点赞投票评选活动。组委会承认围观者的
评选结果，并颁发“最受大众欢迎奖”。如果群众与专家所见略同的话，专家奖与大众
奖会合一。
我代表千瓦厚实验室参赛，分别在在能源组和交通组提交了方案书：
Proposal 1:
Commercial flapping-shutter ornithopter era will come soon
http://www.climatecolab.org/contests/2017/transportation/c/proposal/1333915
Proposal 2:
High eff... 阅读全帖 |
|
发帖数: 1 | 49 M110自行火炮（英语：M110 203mm self-propelled gun）是美国生产的履带式自行火
炮系列之一，也是战后美国制造的自行火炮中装载火炮口径最大的一款。
M110的开发时间于1956年1月开始，为取代当时服役中的M55自行火炮及上面所搭载的
M115榴弹炮[1]。由于当时美军的共通化需求，因此与M107自行火炮采用了共通底盘，
原型车T236于1958年完成。但因为美军当时同时进行柴油引擎化作业，因此原型车进行
了引擎改造，此项作业隔年完成并进行测试，于1961年正式以M110的编号投入量产。
除了主炮以外，M110与M107结构大致相同，为了要符合空运需求也严格限制了此型自行
火炮的重量；车壳只有13毫米厚的铝合金装甲，只能防御5.56毫米等级的步枪弹。并使
用开放式炮塔，炮车移动时只有车组3位乘员，炮班跟随弹药运输车移动。弹药运输车
部分则因应各国需求各自开发，美军则使用同样以M-113底盘为基础研制的M-548装甲运
输车协同作战。
M110服役时，在美军中是以连级规模编制在师级单位下；或是采独立营的编组隶属于炮
兵指挥部，作为核子打击的主力。由于科技更新，... 阅读全帖 |
|
r*****4
发帖数: 4016 | 50 华尔街日报前些天头版报道海康威视。
Surveillance Cameras Made by China Are Hanging All Over the U.S.
Company 42%-owned by the Chinese government sold devices that monitor U.S.
Army base, Memphis streets, sparking concerns about cybersecurity
By Dan Strumpf,
Natasha Khan and
Charles Rollet
The Memphis police use the surveillance cameras to scan the streets for
crime. The U.S. Army uses them to monitor a base in Missouri. Consumer
models hang in homes and businesses across the country. At one point, the
cameras kep... 阅读全帖 |
|
