w*********g
发帖数: 30882 | 1 最新消息：美国资产阶级开始清理和镇压华尔街占领者！
（中国李建军2011-10-26原创、转载注出处）
riot squads clear wall st. protests in 2 cities
防暴队在2 个城市清理华尔街抗议者
另据网络消息，美国当地防暴警察在亚特兰大、奥克兰2个城市清理华尔街抗议者。
在亚特兰大，直升机盘旋在空中，午夜刚过，拘捕了50多个帐篷里的示威者。
在奥克兰，数百名警察使用了催泪瓦斯和豆袋弹。八十五人被逮捕。有些人拖了出来，
被铐上塑料铐。
刚刚获悉，美帝国主义对和平示威者实施残酷的镇压：
We are all Scott Olsen: Occupy Oakland #OWS
占据奥克兰所有行动者关于斯科特 · 奥尔森报道
Posted Oct. 26, 2011, 8:53 p.m. EST by OccupyWallSt
占领华尔街行动者发布于东部时间2011 -10 -26 8:53
Late last night, Scott Olsen, a former Marine, two-time Iraq war veteran,
and ... 阅读全帖 |
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b*****d
发帖数: 61690 | 2 NEW: Sexual assault reported at Occupy Philly camp, mayor says
More than a dozen arrests made in Portland Sunday
Salt Lake City police clear camp, arrest 19 protesters
Denver police arrest 17 in clearing right-of-way
(CNN) -- Numerous arrests took place in several Western cities as police
moved in to clear Occupy encampments over the weekend, authorities said.
In Portland, Oregon, unrest continued into Sunday morning as protesters
defied a midnight Saturday deadline for the Occupy encampments to... 阅读全帖 |
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L*******o
发帖数: 895 | 3 1. Isaac Newton - English. Quantified and Qualified laws of motion and
gravity. Invented the reflecting telescope. Explained the concept of light
dispersion and co-invented the Calculus.
2. Albert Einstein - German/Swiss/American - Developed Theories of Special
and General Relativity. Described Brownian Motion. Nobel Prize winner for
his work on the photoelectric effect. Showed mass-energy equivalence.
3. Galileo Galilei - Italian - Discovered the law of Uniformly accelerated
motion. Improved on... 阅读全帖 |
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C****g
发帖数: 2220 | 4 比如现在要轰东京，
是在panel上输入东京，
还是输入经纬度？
还是整个就是固定死的，
本来就瞄准到东京的，
如果要轰，按一下按钮就可以？
我看很多导弹的launch pad都是想运输车辆一样的
是灵活的，不是死的
所以要轰的target，应该也是活的，不是死的
既然这样，就需要一个输入target 地址的问题
我在想，这东西能不能做成像ipad+google map一样
可以zoom in到某地，系统自动把地址读入
自动计算projectile，从而可以调教瞄准角度等
然后一按，就飞出去了
这样，发射导弹的事情，领导也可以做了
很简单
而且到底有没有射到所要的target，也可以很精确的知道 |
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l*****7
发帖数: 8463 | 5 http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB80/
home | about | documents | news | publications | FOIA | research |
internships | search | donate | mailing list
Iraq and Weapons of Mass Destruction
National Security Archive Electronic Briefing Book No. 80
Updated - February 11, 2004
Edited by Jeffrey Richelson
Originally posted December 20, 2002
Previously updated February 26, 2003
Documents - Press release - Further reading
Between Iraq's invasion of Kuwait in August 1990, and the commencement of... 阅读全帖 |
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p*********e
发帖数: 32207 | 6 需要注意的是,大部分州在申请获得permit后你可以随身携枪,
但必须是隐蔽携枪,concealed carry
也就是不能让别人看到
florida法律规定,open carry firearm本身就是违法的.
实际上florida statute 790有明确的规定:
790.053 Open carrying of weapons.--
(1) Except as otherwise provided by law and in subsection (2), it is
unlawful for any person to openly carry on or about his or her person any
firearm or electric weapon or device.
而sub section (2)只是给出说可以以自卫为用途携带自卫喷雾或非致命电击枪:
(2) A person may openly carry, for purposes of lawful self-defense:
(a) A self-defense chemical sp... 阅读全帖 |
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D*********n
发帖数: 279 | 7 http://en.wikipedia.org/wiki/Native_Americans_in_the_United_Sta
Native Americans in the United States
From Wikipedia, the free encyclopedia
Jump to: navigation, search
"American Indian" redirects here. For other indigenous peoples, see
Indigenous peoples of the Americas and other geographic regions. For
Americans from South Asia, see Indian American.
This article may be too long to read and navigate comfortably. Please
consider splitting content into sub-articles and/or condensing it. (January
2... 阅读全帖 |
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d**********r
发帖数: 24123 | 8 The Federation
Officially the Federation of the Americas (Spanish: Federación de las Amé
ricas), is a political, economic, and military union of North American,
Central American, South American, and Caribbean nations (Latin America),
that has risen to power in the alternate timeline. The Federation's capital
is Caracas, Venezuela.
Under the leadership of the strongly anti-American General Diego Almagro,
the Federation spread unchecked throughout the rest of South America. As
Almagro intensified ... 阅读全帖 |
|
g**1
发帖数: 10330 | 9 N. Korea fires 25 short-range missiles toward East Sea
2014/03/16 22:53
SEOUL, March 16 (Yonhap) -- North Korea fired off 25 short-range missiles
toward the East Sea late Sunday, Seoul's military said, the latest show of
force in response to the ongoing joint South Korea-U.S. military drills.
The North began launching ten projectiles at 6:20 p.m. over the span of ten
minutes. The launches began again at around 8:03 p.m., and another eight
rockets were fired in the period of five minutes, accordi... 阅读全帖 |
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s******g
发帖数: 3530 | 10 22 March 2014 Last updated at 20:13 ET Share this pageEmail Print Share this
page
ShareFacebookTwitter.Spain austerity: Huge Madrid protest turns violent
Guy Hedgecoe in Madrid says the demonstrators are calling for more policies
to create jobs in Spain
Continue reading the main story
Related Stories
Spending protest grips Spanish city
Moody's says Spain economy improves
Spain's brain drain Watch
Violence has broken out at the end of an anti-austerity protest attended by
tens of thousands of peo... 阅读全帖 |
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S**********b
发帖数: 3142 | 11 应该是有办法
以后发生这种事
要学美国人的做法
一开始就用Chemical agents and less lethal foam projectiles
以避免无辜群众受害 |
|
n***c
发帖数: 7400 | 12 我昨天说公布日本战犯审讯笔录，最好是弄个英文版的，让全世界历史学家，尤其是装
B成瘾的美国英国历史学家去研究，扩大人类对日本在二战中所犯暴行的认识。果然，
今天公布的战犯审讯记录提供了英文版的摘要，这是一大进步。
藤田茂
据藤田茂1954年8月笔供，他1889年生于日本广岛县。1938年8月到中国山西参加侵
华战争，任陆军骑兵第28联队大佐联队长。1945年3月任第43军第59师团中将师团长。
1945年8月在朝鲜咸兴被俘。
重要罪行有：
1938年8月，在山西河津逮捕住民6名，“讯问这些被逮捕的人民时使用拷问、殴打
等方法手段且杀害了”。
1938年11月，在山西运城东北40公里的三路李村，“搜索屠杀了多数三路李村住民
”。
1939年1月中旬，在山西安邑县张良村，“对军官全体教育说‘为使兵习惯于战场
，杀人是快的方法，就是试胆。对此使用俘虏比较好’ 。‘刺杀比枪杀有效果’”。4
月，在夏县，“我命令第1中队长……让部下的9名兵刺杀了俘虏”9名。8月15日，在山
西泽州，“我让把8名俘虏交给第1中队，把9名交给第2中队作为教育材料刺杀了”。
1944年3月—1945年4月，任骑兵第4... 阅读全帖 |
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x****y
发帖数: 1853 | 13 projectile必须跟轨道接触形成回路才能向前推进啊。否则就不是rail gun了，是磁悬
浮炮. |
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w*****8
发帖数: 703 | 14 Downed Airliner: Fake Audio Tape Shows US-Backed Hit to Frame Russia
West Blaming Putin for MH17 tragedy.
West Blaming Putin for MH17 tragedy.
Within hours of Malaysia Airlines Flight MH17 crashing into a wheat field in
the Donetsk region of eastern Ukraine last Thursday, Western governments
and media have gradually stoked a frenzy of accusations that Moscow had a
hand in the disaster.
by Finian Cunningham
Strategic Culture
In a devastating twist to emerge over the weekend it now seems that the
... 阅读全帖 |
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T*****y
发帖数: 18592 | 15 China working on supersonic submarine that could travel from Shanghai to San
Francisco in '100 minutes'
Scientists at China's Harbin Institute of Technology are "a step closer to
creating a supersonic submarine that could travel from Shanghai to San
Francisco in less than two hours," reports The South China Morning Post. The
scientists have reportedly succeeded in replicating an air bubble that
would allow vehicles and projectiles — such as a torpedo — to travel more
quickly through water, which... 阅读全帖 |
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t*******y
发帖数: 21396 | 16 Report: Texas Ebola Nurses Had No Protective Gear For Two Days
Hospital workers were intensively exposed to the first U.S. Ebola patient
without wearing protective gear for two days, according to The Dallas
Morning News.
Between Sept. 28 and Sept. 30, medical professionals treating Thomas Duncan
wore only gowns and scrubs in the interim. Duncan was suffering from
projectile vomiting and explosive diarrhea from Sept. 28 on, but hospital
workers weren’t provided with extensive protective gear, suc... 阅读全帖 |
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t*******y
发帖数: 21396 | 17 Duncan was suffering from projectile vomiting and explosive diarrhea from
Sept. 28 on, but hospital workers weren’t provided with extensive
protective gear, such as hazmat suits, until Sept. 30, according to the
Associated Press.
这种情况尼玛连俺这种医盲都知道要全身防护还要防水，医院弄个袍子顶个屁用啊 |
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f********4
发帖数: 2883 | 18 梁警官在纽约走火杀死黑人一事件，官方的处理从一开始就很不一般。这个不一般连纽
约时报都第一次报道时就注意到了。
第一时间，好像是第二天，就曝光了警察的名字，同时说明死者是完全清白无辜的。这
跟其他白人警察如杀布朗的威尔逊警官的处理很不一样。
当时官方说的是显然这是一个意外走火事故，似乎是一颗反弹的子弹打中了他。我当时
还专门查了字典，这个ricochet是什么意思。是1(Of a bullet or other projectile)
rebound off a surface: a bullet ricocheted off a nearby wall，的意思。但是
说还需要调查。
现在验尸官又说是故意打死的。奇怪是什么使他们当时产生“一次意外事故”的看法的
。如果是子弹打在墙上然后反弹过去，那就肯定是意外事故。这可以很快就通过查验周
边环境包括墙上有无新鲜弹痕就基本可以发现，再配以验尸。建议梁自家像布朗家那样
自己请刑侦专家调查。 |
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l*****7
发帖数: 8463 | 19 Family of Tamir Rice files wrongful death lawsuit against Cleveland Police
Department
The Associated PressMARK GILLISPIE and JOHN SEEWERDec 5th 2014 6:29PMThe
family of a 12-year-old who had a pellet gun when he was shot by a Cleveland
police officer filed a wrongful death lawsuit Friday, saying two officers
acted recklessly when they confronted the boy in a terrifying manner and
fired within seconds.
The federal lawsuit filed against the city and the two officers also said
the officers waited f... 阅读全帖 |
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l*****7
发帖数: 8463 | 20 Family of Tamir Rice files wrongful death lawsuit against Cleveland Police
Department
The Associated PressMARK GILLISPIE and JOHN SEEWERDec 5th 2014 6:29PMThe
family of a 12-year-old who had a pellet gun when he was shot by a Cleveland
police officer filed a wrongful death lawsuit Friday, saying two officers
acted recklessly when they confronted the boy in a terrifying manner and
fired within seconds.
The federal lawsuit filed against the city and the two officers also said
the officers waited f... 阅读全帖 |
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b******n
发帖数: 4559 | 21 【 以下文字转载自 USANews 讨论区 】
发信人: bingchen (冰宸), 信区: USANews
标 题: say something (i'm giving up on you) - 悼念华裔NYPD刘警官昨日被枪杀
发信站: BBS 未名空间站 (Sun Dec 21 16:51:06 2014, 美东)
Say Something
Song by Alex Preston, A Great Big World
Say something, I'm giving up on you
I'll be the one, if you want me to
Anywhere, I would've followed you
Say something, I'm giving up on you
And I am feeling so small
It was over my head
I know nothing at all
And I will stumble and fall
I'm still learning to love
Just starting to c... 阅读全帖 |
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t*d
发帖数: 8340 | 22 能跪着磕头解决的，绝不动刀动枪去拼命。
咕嗒！你这是三自教会好成员～
自轻自贱自恨
[在 projectile (没有) 的大作中提到：]
：再多说一句哈。妥善的处理事情不是怕事。我从小就不怕事，中学的时候一个朋友的
帽子被一帮流氓抢了，我追到公共汽车上坐了几站路帮她抢了回来。作为一个女生，我
相信很多其他女生不敢。
：
：........... |
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y***k
发帖数: 9459 | 23 反引力手册摘录
By D. Hatcher Childress
Many researchers into the UFO enigma tend to overlook a very important fact.
While it assumed that most
flying saucers are of alien, or perhaps Governmental Military origin,
another possible origin of UFOs is ancient
India and Atlantis.
许多研究员进入不明飞行物谜之内容易看出一个很重要的事实。虽然多数被假定是外星
人的飞碟，或也许
是政府的军事来源，不明飞行物的另外一个可能的来源是古印度和亚特兰提斯岛。
What we know about ancient Indian flying vehicles comes from ancient Indian
sources; written texts that
have come down to us through the centuries... 阅读全帖 |
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w*p
发帖数: 16484 | 24 2015年5月一辆Amtrak列车在50mph zone超速到100mph，引起翻车造成8人死亡。经过一
年的严密调查取证，官方认为造成事故的原因是，司机收到另一辆火车上的司机发来的
消息，说windshield撞到了石头，影响了事故列车上的engineer,所以造成了超速2倍。
你信了吗？
Official: Radio transmissions distracted Amtrak engineer
https://www.yahoo.com/news/official-radio-transmissions-distrac
engineer-214126117.html?nhp=1
NEW YORK (AP) — An Amtrak engineer whose speeding train jumped the tracks
along a curve in Philadelphia last year, killing eight people, was
distracted by radio transmissions, a U.S. official briefed on... 阅读全帖 |
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o*****p
发帖数: 2977 | 25 没放弃。后面说海军要再花8亿实验能量比较小的版本
According to the Wall Street Journal, the Pentagon's Strategic Capabilities
office has allocated $800 million to develop a "defensive capability" for
the gun—i.e. making it shoot with less power for closer ranges—as well as
adapting conventional weapons to fire the tungsten projectile. |
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m**c
发帖数: 7349 | 26 At least one person has been injured in a shooting at an anti-Trump protest
in Portland, Oregon. The protests, now in their third night, again turned
violent with protesters throwing projectiles at officers and police
deploying tear gas. |
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q****5
发帖数: 1660 | 29 原创：
电磁炮相对于传统的火药驱动身管火炮的优势在于其可达到更大的初速和动能，也因此
拥有更远大的射程与更大的杀伤力。美军的电磁炮的研发貌似不太顺利。前段时间有消
息说将于2019年被停止拨款。但其开发中的原拟与电磁炮配套使用的超高速弹丸（
hypervelocity projectile - HVP)却很有代表性。
为了保证大射程上的精度，HVP被设计成一种超高速，模块化和带寻的头的制导弹丸。
电磁炮的初速虽然远大于传统身管火炮，但由于弹丸是在炮管内全程均匀加速，其所承
受的冲击力相较于传统火炮并无显著增加。对于已装备了制导炮弹的美军与共军来说不
存在不可逾越的技术障碍。模块化的设计使部队可以根据不同的目标灵活选择寻的头与
战斗部。美军原来有计划将电磁炮用于防御反舰导弹。这一任务现在很可能会交给试验
中的固体激光器来完成，因为激光反导系统更经济，可能也更有效。在电磁炮计划可能
中止的情况下，美军准备将HVP技术移植到传统身管火炮上。美军甚至计划用其野战炮
兵装备的M109自行榴弹炮与M777超轻炮发射带KKV的HVP来执行战场反弾道导弹任务。这
些榴弹炮的初速当然不能与电磁炮相比。但... 阅读全帖 |
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发帖数: 1 | 30 三年多来，我已经写了三篇有关电磁炮实战效益的文章。一如我一生的原则，这些分析
都只基于绝对客观的事实与逻辑，对大众流行的说法和心理的欲望，完全无视。我也知
道一般人（包括许多成名的学术人员在内）没有能力轻易放下主观的偏见、专注在理性
的思路上，所以也就难怪留言栏里的质疑不断，很多读者面对铁桶一样密不透风的逻辑
论述，仍然向其猛力衝撞，希望能打出一条裂缝。
事实上，我的分析涵盖了空气动力学、弹道学、电子技术、电力技术、商业宣传、组织
结构、以及军事战术和战略上的考量，本身就很複杂；很多细节的讨论，又零零星星地
分散在留言栏里，所以我想在此爲大家做个总结，顺便设身处地地为不愿接受负面结论
的读者，指出有一丝可能的救赎（Possible but improbable Salvation）方向。
首先开宗明义，这里说的电磁炮就只是轨道炮；綫圈发射装置，如电磁弹射器，已知是
实用的，但原理不同，不适合用来发射Mach 5及以上的高速弹丸。其次，因爲工程问题
能否解决，不是纯依逻辑就可以事先预测的，所以我们忽略电磁炮身管发热所带来的射
速和寿命问题，虽然它们很严重困难，我仍然假设工程人员能创造奇迹... 阅读全帖 |
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b*****d
发帖数: 61690 | 31 93012000 ........... Rocket launchers; flame-throwers; grenade launchers;
torpedo tubes and similar
projectors
93019030 ........... Rifles, military
93019060 ........... Shotguns, military
93019090 ........... Military weapons, nesoi
93040040 ........... Pistols & other guns (o/than rifles) that eject
missiles by release of comp. air or gas, a
spring mechanism or rubber held under tension
93051020 ........... Parts and accessories nesoi, for revolvers or pistols
of heading 9302
93051040 ........... 阅读全帖 |
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b********n
发帖数: 38600 | 32 You look like you are 18.
You like to eat chicken feet.
You suck on fish heads and fish fins.
You have a Chinese knick-knack hanging on your rear view mirror.
You sing Karaoke.
Your house is covered with tile.
Your kitchen is covered by a sticky film of grease.
Your stove is covered with aluminum foil.
You leave the plastic covers on your remote control.
You've never kissed your mom or dad.
You've never hugged your mom or dad.
Your unassisted vision is worse than 20/500.
You wear contacts, to av... 阅读全帖 |
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m**********e
发帖数: 12525 | 33 坦克其实已经没戏了
技术进步太快了，现在有末敏弹（Terminal Sensitive Projectile），从福建前线向
滩头坦克阵地发射，不需要瞄准，炮弹到达目的地低空自动寻找坦克，自动攻击 |
|
b****a
发帖数: 4465 | 34 上面的就是王五们的八吋榴 援助美国后，美军称为 M115 (8-Inch Howitzer M1)
203mm Towed Howitzer
看看美国老板的说法
Shell Separate loading charge and projectile 90.7 kg (200 lb)[1]
Caliber 203 mm (8 in)
Breech Interrupted screw
Recoil Hydro-pneumatic
Carriage Split trail
Elevation −2° to +65°
Traverse +60°
Rate of fire 1 rpm (maximum)
3 rounds per 2 minutes (maximum)
Muzzle velocity 587 m/s (1,926 ft/s)
Effective firing range 16,800 m (18,373 yds)
最后一项，射程16，800米。翻墙从廊坊进谷歌量了下地图，厦门火车站东的梧村山到
金门的任何一... 阅读全帖 |
|
g**1
发帖数: 10330 | 35 技壓中國電磁砲！美軍「超高速炮彈」將改寫戰爭型態
分享技壓中國電磁砲！美軍「超高速炮彈」將改寫戰爭型態到Facebook 分享技壓中國
電磁砲！美軍「超高速炮彈」將改寫戰爭型態到Line
「超高速炮彈」能更有效率進行岸轟、反艦射擊，攔截敵機、巡弋飛彈與反艦飛彈，
且成本低廉，能直接裝在大多美國海軍船艦上。（圖擷取自US Navy臉書專頁）
「超高速炮彈」能更有效率進行岸轟、反艦射擊，攔截敵機、巡弋飛彈與反艦飛彈，且
成本低廉，能直接裝在大多美國海軍船艦上。（圖擷取自US Navy臉書專頁）
2019-01-09 15:18
〔即時新聞／綜合報導〕近日中國央視得意洋洋稱軍艦將裝設電磁砲，但如今又被美軍
超前！有消息指出，美軍又有新的「黑科技」，名為「超高速炮彈」，能更有效率進行
岸轟、反艦射擊，攔截敵機、巡弋飛彈與反艦飛彈，且成本低廉，能直接裝在大多美國
海軍船艦上。專家稱若此技術開始服役，將「一舉改寫未來的戰爭型態」。
據《美國海軍研究學會新聞網（USNI）》報導，去年夏天美軍發射了20發最新型的「超
高速炮彈（Hyper Velocity Projectile,HVP）」，炮彈能以超... 阅读全帖 |
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W*****B
发帖数: 4796 | 36 还是太贵，什么时候能100块一发就好了
：技壓中國電磁砲！美軍「超高速炮彈」將改寫戰爭型態
： 分享技壓中國電磁砲！美軍「超高速炮彈」將改寫戰爭型態到Facebook 分享技壓中
國電磁砲！美軍「超高速炮彈」將改寫戰爭型態到Line
： 「超高速炮彈」能更有效率進行岸轟、反艦射擊，攔截敵機、巡弋飛彈與反艦飛彈，
：且成本低廉，能直接裝在大多美國海軍船艦上。（圖擷取自US Navy臉書專頁）
：「超高速炮彈」能更有效率進行岸轟、反艦射擊，攔截敵機、巡弋飛彈與反艦飛彈，
且成本低廉，能直接裝在大多美國海軍船艦上。（圖擷取自US Navy臉書專頁）
：2019-01-09 15:18
：〔即時新聞／綜合報導〕近日中國央視得意洋洋稱軍艦將裝設電磁砲，但如今又被美
軍超前！有消息指出，美軍又有新的「黑科技」，名為「超高速炮彈」，能更有效率進
行岸轟、反艦射擊，攔截敵機、巡弋飛彈與反艦飛彈，且成本低廉，能直接裝在大多美
國海軍船艦上。專家稱若此技術開始服役，將「一舉改寫未來的戰爭型態」。
：據《美國海軍研究學會新聞網（USNI）》報導，去年夏天美軍發射了20發最新型的「
超高速炮彈（Hyper ... 阅读全帖 |
|
发帖数: 1 | 37 哈哈哈
The American and South Korean militaries are analyzing the details of the
latest test launch by North Korea, in which a couple of short-range
ballistic missiles were fired towards the Sea of Japan.
Pyongyang fired the projectiles using a transporter erector launcher (TEL)
about 20 minutes apart from the Wonson area early Thursday morning, South
Korea's Joint Chiefs of Staff (JCS) said, noting that the short-range
missiles flew for around 430 kilometers at an altitude of around 50
kilometers ... 阅读全帖 |
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发帖数: 1 | 38 At least two projectiles were launched from Wonsan in the Kangwon province,
eastward into the sea, Yonhap news agency reported on Wednesday citing South
Korea’s Joint Chiefs of Staff. Their type was not identified. |
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w***n
发帖数: 193 | 39 悬挂非法牌照罪
伪造非法证照罪
reckless driving (sudden acceleration)
Illegal lane change
Loud music impairing driving
Projectile from moving vehicles (the red chinazi flag) |
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发帖数: 1 | 40 North Korea on Thursday fired two short-range projectiles, likely from a “
super-large” multiple rocket launcher, South Korea’s military said, adding
to tensions three days after the North said its troops conducted artillery
drills near its disputed sea boundary with South Korea.
The recent North Korea activities could indicate it wants to show what would
happen if Washington fails to meet a year-end deadline set by its leader,
Kim Jong Un, for the U.S. to offer a new proposal in their stalemate... 阅读全帖 |
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O**********g
发帖数: 3962 | 41 这简直是帮美帝，本来韩国不愿意交50亿的
: 打不到洛杉矶还打不到北京。
: :
: :North Korea on Thursday fired two short-range projectiles, likely
from a “
: :super-large” multiple rocket launcher, South Korea’s military said,
: adding to tensions three days after the North said its troops
conducted
: artillery drills near its disputed sea boundary with South Korea.
: :
: :The recent North Korea activities could indicate it wants to show
what
: would happen if Washington fails to meet a year-end... 阅读全帖 |
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f***y
发帖数: 4447 | 42 樣本收集的時間不一，美國製的在化驗前約一個月收集，而中國製的樣本是化驗前一天
才收集，較為「新鮮」，但當中殘留的CS份量卻仍比美製的為少。
https://hk.news.yahoo.com/科學博士生自發驗催淚彈-國產手擲式沒驗出cs殘留物-出
乎意料-181030796.html
科學博士生自發驗催淚彈 國產手擲式沒驗出CS殘留物「出乎意料」
警方由6月至今發射逾萬枚催淚彈，近月更開始使用國產催淚彈，惟國產催淚彈的成分
一直沒有公開，公眾擔憂會否對人體健康造成影響。由一群科學碩士及博士生組成的「
香城教育電視」科學團隊，化驗了中國製及美國製的催淚彈，並發表報告，發現中國製
發射型催淚彈彈殼的CS殘留物，較美國製的少，而手擲式催淚彈彈殼更驗不到有CS殘留
，形容結果是「出乎意料」。團隊又指，雖然化驗結果顯示中國製催淚彈CS濃度較美國
製的為低，但令人不適的程度與美國製的相若，擔心是否代表當中還有尚未發現的不知
名化合物。
團隊收集三款彈殼作樣本，包括由美國製造商「NonLethal Technologies」生產的MP-
6M5-CS發射型催淚彈、中國製由北方工業（Norinco）生... 阅读全帖 |
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p******x
发帖数: 1264 | 43
呵呵，你查了wiki为什么就把有明确爆炸物成分的文字省略了?
The case is made of spirally wound spring steel filled with 8 pounds (4 kg)
of PBXN-3 explosive.
PBXN-3 explosive是什么呢？就是85%的黑索金，黑索金的爆炸威力是TNT的158%。你查
到的M107 projectile装药是6.62kgTNT，0.136kg的tnt是用来起爆近炸引信。
做道数学题4x0.85x1.58和6.62差得很远么？ |
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p*********e
发帖数: 32207 | 44 问题在于这个projectile就是个实心动能弹啊
我怀疑整个弹丸的大部分甚至全部重量是用来获得动能(与轨道进行电磁感应)的
问题是你最后的目标是要让弹丸有装药有制导,这部分能不能加,加上这些死重量之后
表现会如何,都还不得而知.
你总不能用动能弹去打200公里外的目标吧?未免有些高射炮打蚊子的意思
另外同样发射纯动能弹,坦克炮大把初速高于5倍音速的. |
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w********r
发帖数: 14958 | 45 电磁炮正式服役在2020-2025年。 也就是大概中国装备四代机的时候。已经不远了。
现在电磁炮还在研发之中，已经达到并超越了传统火炮的极限。 别说10年之后会是什
么样了
http://en.wikipedia.org/wiki/Railgun
危机百科上说：
Its expected performance is a muzzle velocity over 5,800 m/s, accurate
enough to hit a 5 meter target over 200 nautical miles (370.4 km) away while
firing at 10 shots per minute. .... at a fraction of the projectile cost.
这个精度，根本不用制导。 这个速度，就是即瞄即摧毁。 这个成本，太诱人了。
轨道炮的目标根本不是为现代海战设计的，根本就是未来海战。 |
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w********r
发帖数: 14958 | 46 physical limitations of conventional firearms–"the limits of gas expansion
prohibit launching an unassisted projectile to velocities greater than about
1.5 km/s and ranges of more than 50 miles [80 km] from a practical
conventional gun system."[11]
[11]Adams, LCDR David (2003). Naval Railguns Are Revolutionary.
这个5800km/s已经16倍音速了。 飞行过程中这些白噪声能对炮弹产生多大影响。你我
的感觉都不准。 上面说的这些精度和速度都是有出处的。 就在原贴上。 general atomics的科学家说有戏， 这是目前可信度最高的信息。 |
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p*********e
发帖数: 32207 | 47 是的
所以前面我发帖问说这个projectile到底是啥样的
为啥能存速那么久
按说速度那么高风阻可不小
直瞄坦克炮发射尾翼稳定脱壳穿甲弹,弹头重量大概是几百克到小几千克的量级我估计
初速能达到2000ms-1
直瞄射程能有个两三公里
它这个就算弹丸更重,线形再怎么优化,加上间瞄,200公里也太远了点儿
不知道是不是有弹翼可以滑翔的 |
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s****r
发帖数: 31686 | 48 和电池弹射器， 比， 谁的难度更大？
th
heat
exerte
projectile.
pr
schoo
the
repel
mag |
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p*********e
发帖数: 32207 | 49 这样看的话,甚至比同样动能的传统火炮要受到更大的挑战
th
heat
exerte
projectile.
pr
schoo
the
repel
mag |
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c*********r
发帖数: 19468 | 50 这还查什么wiki，牛顿三定律小学生也明白吧
th
heat
exerte
projectile.
pr
schoo
the
repel
mag |
|
