摘要
对传统的托里拆力实验进行了改进,用输液管代替玻璃管,避免了玻璃管易损造成的危害,通过注射器改变密闭水银中的气压,较大程度地避免了接触水银的危害,同时,用含硫的海绵减弱装置中的空气流速,有效地减缓了水银的挥发,并利用硫的强还原性控制银与空气的接触,减弱水银对环境的危害,通过观察水银柱的变化得出结论.
The traditional Torricelli experiment was improved. Firstly, to avoid the breaking of the fragile glass tube, an infusion tube was used instead. Secondly, to prevent exposure to mercury, the pressure in the sealed chamber was adjusted by an injector. Thirdly, a sponge with sulfur was placed in the device to reduce the air velocity. Because of the strong reducibility of sulfur, the volatili- zation of mercury was retard. By observing the rise and fall of the mercury, the air press could be measured.
作者
王祥委
段娟娟
彭朝阳
WANG Xiang-wei DUAN Juan-juan PENG Zhao-yang(Physical and Electronic Information Technology, Yunnan Normal University, Kunming 650500, Chin)
出处
《物理实验》
2016年第11期45-46,共2页
Physics Experimentation
基金
云南师范大学研究生科研创新基金(No.yjs201667)
关键词
托里拆利实验
水银
注射器
Torricelli experiment
mercury
injector
