"恒质式"液体压强演示器

学生对液体静压强的大小，只与液体深度与密度有关，而与液体质量多少、不同形状无关，缺少必要的感性认识．加之，现行教科书中，液体压强公式是通过建立抽象的理想液柱模型后，理论推导得出，初中学生受知识储备和心理水平发展的限制，对这样呈现知识的方式不太适应，接受起来比较困难，从而成为教学上的一个难点，也是初中学生学习物理知识的分化点，因而倍受一线教师的关注，许多教师都体会和认识到增加这一演示实验是很有必要的，也为此做了很多的尝试，努力研制过一些实验装置．但这些装置虽各有千秋，却都存在一个严重的不足，     

Demonstrating nonlocality-induced teleportation through Majorana bound states in a semiconductor nanowire

It was predicted by Tewari et al. (2008) [15] that a teleportation-like electron transfer phenomenon is one of the novel consequences of the existence of Majorana fermion, because of the inherently nonlocal nature. In this work we consider a concrete realization and measurement scheme for this interesting behavior, based on a setup consisting of a pair of quantum dots which are tunnel-coupled to a semiconductor nanowire and are jointly measured by two point-contact detectors. We analyze the teleportation dynamics in the presence of measurement back-action and discuss how the teleportation events can be identified from the current trajectories of strong response detectors.     

在灯光下演示全息照相

介绍新的全息照相的实验器材和方法，使全息照相的全过程可以在灯光下完成，可用作课堂演示实验．     

Surface-mediated liquid transport through molecularly thin liquid films on nanotubes

We studied surface-mediated liquid transport through molecularly thin films on individual nanotubes in ambient conditions. The surface fluid with molecular thickness (approximately 10 A) flowed at a constant speed (approximately 10 microm/s) and volume flow rate (approximately 10 al/s) along the nanotubes. The volume flow rate Q follows the power law dependence Q approximately d2.4 on the nanotube diameter d, which is explained with a generic microscopic model.     

液体在单根纳米管表面上的输运

文章研究了在单根纳米管表而上形成的分子级液膜的传输现象。实验发现，厚度在-10A量级的表面流体在表而力的驱动下沿纳米管以恒定的速度（-10μm/s）和容量流速（-10al／s）流动。容量流速Q与纳米管直径d之间成幂函数关系，Q—d^2．4。此结果对实现用纳米管作为液体输运器件具有指导意义。     

液体在单根纳米管表面上的输运

文章研究了在单根纳米管表面上形成的分子级液膜的传输现象.实验发现,厚度在 ~ 10量级的表面流体在表面力的驱动下沿纳米管以恒定的速度（~ 10 μm/s）和容量流速（~ 10 al/s）流动.容量流速Q与纳米管直径d之间成幂函数关系,Q ~ d 2.4.此结果对实现用纳米管作为液体输运器件具有指导意义.     

多普勒效应的演示装置

利用简易材料自制了发声球,将发声球用弹弓在光滑的钢丝上发射出去,随发声球的移动可展现多普勒效应.     

用激光显示李萨如图形

介绍用电磁打点计时器通过激光显示李萨如图形的简单方法．     

三个演示实验的改进

1利用投影放大白炽灯丝振动幅度的生动演示 在演示"把磁铁放在靠近通有交流电的白炽灯泡一侧,观察灯丝的振动情况"时,由于灯丝的振动幅度很小,学生只有在近距离才能观察到.