(翻译！）planetarain考证！+planetarain感想

原文：http://planetarian.insani.org/qa.html
Flechette gun/榴弹发射器
Instead of firing traditional slugs or bullets, these guns fire myriad small steel arrow-like projectiles.

These have the advantages of superior armor-piercing capability, lower weight, and lower bulk.
The US army did do some field tests with prototype flechette guns, but as of now the guns are smooth-bore

(meaning that they have little range and even less accuracy) and there were problems with ammunition jamming.
In the world of planetarian, flechette guns are highly-accurate, long-ranged weapons; on top of that,

flechette cartridges in this world are packed with high explosive that detonates upon penetration, making the

flechettes that much more deadly.
不像传统枪支发射弹丸，Flechette gun发射大量的钢针状投射物，其具有优越的穿甲性，更轻的重量，以及更小的体积。美

军曾经进过Flechette gun原形的战地实测，但当今Flechette gun已变成”滑膛枪“了（被淘汰，它们射程短，精确度低）而

且还有弹药卡膛的问题
在planetarian的世界里，Flechette gun是具有高精确度，长射程，其弹头还带高爆弹药可在穿甲后爆炸。
4.2 Carl Zeiss - Jena GmbH
One of the oldest and most-respected companies in the field of traditional optics, founded in 1846, split into

two parts in 1945 after the fall of Germany at the end of World War II, and re-integrated as one whole in the

1990's after the fall of the Berlin Wall and the eventual reunification of Germany. Carl Zeiss - Jena was the

company that developed the first modern planetarium, in 1923. The "Zeiss-style" projectors used to power these

planetaria were huge, bulky, and incredibly complex; they used two strobe spheres to project the fixed stars

onto the dome. Later "Spitz-style" projectors were far less expensive, and only utilized one sphere.

What is interesting is that when Germany was divided into East and West Germany after World War II, Carl Zeiss

itself split into two parts -- Carl Zeiss - Oberkochen GmbH in West Germany and VEB Carl Zeiss - Jena in East

Germany. The name Carl Zeiss - Jena GmbH was therefore only used before this split. In other words, the

planetarium projector depicted in planetarian could have been installed no later than 1945 -- making it an

incredibly old projector by anyone's standards.
Carl Zeiss - Jena GmbH/卡尔蔡斯
蔡斯是世界上最早的也是最享有声誉的传统光学器材公司之一，它成立于1846年，曾在1945年德国战败后被分割成两部分，然

后又在1990年伯林墙被推倒东西德统一后重新合并。CarlZeis-Jena公司最早于1923年开发了先代天象仪.用于投影星象的Zeiss-

style投影仪十分巨大（比Xbox还大LoL),笨重，以及惊人的复杂，它用两个频闪灯球来将固定的星体影象投影在圆形的屋顶上

。后来"Spitz-style"投影仪比“Zeiss-style”更加廉价，而且只用一个灯球
更加有趣的是当德国战败被分为东西德时，Carl Zeiss公司自己也分成了2部分：在西德的 -- Carl Zeiss - Oberkochen

GmbH，和在东德的VEB Carl Zeiss - Jena。Carl Zeiss - Jena GmbH这个名字只在公司分裂前用过。换句话说在planetarian游

戏里的那个天象仪是在1945年前按装完成的。所以说那个天象仪不管以谁的标准来说都是很古老的

个人对Zeiss的应象：它们的光学仪器是世上最好的，有一则广告：某测绘队建队40年来换了数位队长，十几把标尺，但那台

蔡斯的经纬仪依然历久如新。Zeiss的1'级产品是最贵的！我学校里有一台7X年产的蔡斯复式显微镜（尘封>20年），我用只了5分钟就把它调到最佳状态，比国产紫X山牌的好N多
http://www.zeisshistorica.org/ 蔡斯的的历史
星象仪 http://www.clarkfoundation.org/astro-utah/vondel/planetarium.html
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