作者JohnMash (John)
看板Physics
标题Re: [问题] 这个热学叙述哪里不对呢?
时间Mon Oct 12 14:14:15 2009
※ 引述《JohnMash (John)》之铭言：
: 标题: Re: [问题] 这个热学叙述哪里不对呢?
: 时间: Mon Oct 12 11:41:23 2009
:
: ※ 引述《pianoboy (人还挺多的嘛)》之铭言：
: : 热铁块置於水中,由於铁块对水作功而使水温上升
: : 我看不出哪里有错= =
: : 请各位大大指点一下..
:
:
: 是由於量子电动力学
:
: 铁原子的价电子和水分子的价电子交换虚光子所致
:
:
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※ 发信站: 批踢踢实业坊(ptt.cc)
: ◆ From: 112.104.115.180
: 嘘 kenny2963:无法计算也是有物理意义，能计算的有比较高尚吗?? 10/12 12:59
: 嘘 sunev:这问题和QED有啥鬼关联... 10/12 13:46
This problem is BASICALLY QED in PRINCIPLE.
there are only 4 fudamental force.
GRAVITY is negligible in this problem.
STRONG FORCE is irrelevant in this problem
(since electrons are leptons)
WEAK FORCE is neglible in this problem
(since W,Z boson is too heavy).
the ONLY POSSIBILITY is QED.
I am pity that many animals want to fly
even they cannot crawl.
: 推 obluda:JM大 帮你捕个血(其实都有再注意你的文章 算比较好的) 10/12 13:57
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.112.101.44
※ 编辑: JohnMash 来自: 140.112.101.44 (10/12 14:15)
※ 编辑: JohnMash 来自: 140.112.101.44 (10/12 14:16)
1F：推 obluda:XD 别生气 10/12 16:19
2F：嘘 kenny2963:最後一段 10/12 22:54
3F：→ JohnMash:it must be 这问题和QED有啥鬼关联... 10/12 23:28
4F：→ joe70136:In my opinion, in this classical problem you may not 10/13 12:14
5F：→ joe70136:need to use the concept of QED. Just like for some 10/13 12:15
6F：→ joe70136:mechanical problems what you use is Newtonian 10/13 12:16
7F：→ joe70136:picture not Schordinger picture. Not all the problems 10/13 12:17
8F：→ joe70136:should be analyzed down to the essential mechanism, 10/13 12:17
9F：→ joe70136:i.e., the four kinds of essential force. 10/13 12:19
10F：→ joe70136:By the way, I think in this problem CED is enough. 10/13 12:23
11F：推 sunev:楼上...这样会被原po说你未爬先飞啊.... 10/13 12:41