“所以屏幕無論多遠,光斑都是1秒轉一圈。”
如果承認這點,當光斑組成的圓的圓周大於c,圓周上光斑的移動速度不就大於c了?
“所以屏幕無論多遠,光斑都是1秒轉一圈。”
如果承認這點,當光斑組成的圓的圓周大於c,圓周上光斑的移動速度不就大於c了?
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我的意思就是說覺得他對過程的描述沒有錯
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09/27/2011 postreply
03:12:36
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