猜猜看，这是什么？（二）
如题。 一二三四五张老师来十万个为什么 估计有了望功能emem74.gif 估计有了望功能emem74.gif
三棵树 发表于 2009-12-2 06:10 http://bbs.cnstrad.com/images/common/back.gif
是的，但不是主要功能。 再看看............{:1_269:} 导弹发射架。emem74.gif 感觉是灯塔类的，但又不像是海边
难道是电视信号发射塔？像东方明珠那种的？ 是水塔吗？我看好像是。 是水塔吗？我看好像是。
火焰 发表于 2009-12-18 22:25 http://bbs.cnstrad.com/images/common/back.gif
水塔上面一般会有个比较大的容器好装水。
这个东东确实不太好猜，这是一个世界上为数不多的，专门用来做失重实验的降落塔 Drop Tower，ZARM：
http://www.zarm.uni-bremen.de/
整个塔内部为一个密封容器，物体可以在抽过真空的的塔内进行 4.74 秒钟的自由落体试验。你应该算得出这塔有多高了吧？算不出来的话请大调教授前来补课。
ZARM is a scientific institute at the University of Bremen. The research is concentrated on the investigation of fluid mechanics phenomena in particular under microgravity conditions and questions related to space technology. The most outstanding facility is the Drop Tower Bremen, which provides 4.74 seconds of weightlessness in an earthbound laboratory. The drop tower team will serve you in consulting, during integration, during a campaign and in evaluation.
The ZARM-FABmbH is a public company, owned by the Bremen State Government. By Oct. 2007, more than 4600 drop experiments have successfully been carried out with more than 100 different experiments. With the implementation of the drop tower catapult system, up to 9.3 seconds of near weightlessness up to three times a day are available for scientists from allover. 本帖最后由 E大调 于 2009-12-19 00:50 编辑
这是中学的物理题哟。 重力加速度常数 g =9.8米/秒^2. 自由落体从零速度开始的速度为 v =gt. 积分后高度则为 h = g ∫vdt = (1/2)gt^2 = (1/2) (9.8米/秒^2)(4.74秒)^2 = 110 米.
不高嘛。 台北101高度是509米哟。 这是中学的物理题哟。 重力加速度常数 g =9.8米/秒^2. 自由落体从零速度开始的速度为 v =gt. 积分后高度则为 h = g ∫vdt = (1/2)gt^2 = (1/2) (9.8米/秒^2)(4.74秒)^2 = 110 米.
不高嘛。 台北101高度是509米哟 ...
E大调 发表于 2009-12-19 00:48 http://bbs.cnstrad.com/images/common/back.gif
确实不算高，但算是俺们这方圆10公里圪垯内的最高建筑了。 emem09.gif
页:
[1]
2