A demonstrator which indicates overweight and weightlessness by luminescent demonstration is introduced. It has good visual effect.
本文介绍了利用发光显示超重、失重演示器的直观性效果好的特点。
The method of measuring of glass refractive index is improved, and then a simple display on the phenomena of overweight and weightlessness is given.
对测量玻璃的折射率实验做了改进，对超重与失重现象给出了简易的演示方法。
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