能量守恒是一个原理，无法给出一般的证明。

In the electromagnetic theory, the law of energy conservation is described by Poynting thereom. Can you give me a specific example that violate this law? Thanks.

所有跟帖： 

• 能量守恒既是一个原理，又是经验规律 -cys254- ♂ (688 bytes) () 05/10/2010 postreply 20:45:02

• 这样的实验在两年前就已经有了 -liuyanghe- ♂ (0 bytes) () 05/11/2010 postreply 04:15:38

• 愿闻其详 -cys254- ♂ (0 bytes) () 05/11/2010 postreply 06:56:37

• You mean “永动机”成功了？ -zhejiangbeijing- ♂ (11 bytes) () 05/11/2010 postreply 20:41:56

• 不是 “永动机”，是一个物理学实验 -liuyanghe- ♂ (94 bytes) () 05/11/2010 postreply 21:06:28

• Please give references for the 物理学实验? -zhejiangbeijing- ♂ (7 bytes) () 05/11/2010 postreply 21:18:27

• 回复： -liuyanghe- ♂ (30 bytes) () 05/21/2010 postreply 11:01:31

• 带电粒子和交变电场（位移电流）有互作用 -zhejiangbeijing- ♂ (209 bytes) () 05/22/2010 postreply 07:15:12

• 回复： -liuyanghe- ♂ (369 bytes) () 05/22/2010 postreply 10:56:34

• Maxwell equations 服从能量守恒原理 -zhejiangbeijing- ♂ (758 bytes) () 05/22/2010 postreply 13:54:02