往来于行星之间的公共汽车

James Oberg和Buzz Aldrin认为，地球与火星之间的重力助推轨道将节约运送人员和设备的成本。     

怎样飞往火星

专职作家George Musser和Mark Alpert介绍了载人飞行任务的诸多设想。     

程序创作的散文及韵律诗集

“处理好作品的构思和语言对其作者是一种训练。”——LEWIS CARROLL：《爱丽斯仙境奇遇记》     

Resistance to interference in complex negative patterning

Resistance to interference was examined in rats that received a complex negative patterning discrimination in which XA and XB were followed by food reinforcement and XAB was not. Retention of the discrimination was evident after separate reinforcement of both A and B (Experiment 3), but not after reinforcement of either AB (Experiments 1 and 3) or XAB (Experiments 2 and 3). These data suggest that complex negative patterning discriminations are acquired configurally and that the relative similarity of the original discrimination and subsequent interference trials dictates the final degree of retention observed.     

大脑中的牛鬼蛇神

如果所有的体验都源于大脑，那超自然现象也只不过是神经的作用而已。     

超快的原子芯片

这幅绘画作品显示出一团超冷原子云悬浮在一块简单的微芯片表面附近的磁场中。     

锥面的花样

现今人们最熟悉的锥面，大概要算是用来盛冰淇淋的那种能吃下去的锥形蛋卷了。但历史上锥面的辉煌却完全在另外一些更高级的层次上。古希腊人已经熟悉锥面的几何性质，这主要是因为用一个平面去截锥面可以构造出漂亮的圆锥曲线。古希腊人很喜欢这些圆锥曲线——包括椭圆、抛物线和双曲线——