relativistic balloon 对比 Cathode Ray 的使用情况和统计数据
this app shows the relativistic effects in a visual way. the vertical height of the cyan ellipse represents time dilation. the horizontal width of the cyan ellipse represents length contraction.
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With this app you can simulate a cathode ray inside an electronic and magnetic field.
You can change the electric voltage and magnetic flux density to check which way the ray goes. For comparison the is also a ray of He-nucleus.
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relativistic balloon VS. 
Cathode Ray一月 12, 2025