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火是什么? 回答老镜先生

已有 5175 次阅读 2009-12-6 20:27 |个人分类:我的思考|系统分类:论文交流| 李亚辉, 老镜, 王修慧

Mirror(老镜,镜仙)先生提出了一个问题:“火是什么?” 鬼王李亚辉认为这是一个令人误入歧途的问题。引起了大家的思考。详情见鬼王博文:

火是什么?——献给老镜 http://www.sciencenet.cn/m/user_content.aspx?id=275937

王修慧先生对这个问题进行了回答:
以“飞蛾扑火”之勇气和“亮剑”之精神扑向“火”坑    http://www.sciencenet.cn/m/user_content.aspx?id=276187

最后的结论是: 什么是火?火是一种部分电离、能发光放热的、能导电的高温气体混合物——或曰半等离子体!我觉得王先生真的被误入歧途了。他回答的是什么是火焰的问题。

就我个人观点来说,火是人类很早就有的概念。要回答这个问题,需要从人们在日常生活中对火这个词的使用情况回答。我的回答是:
火是人类可以感知的燃烧现象。为什么这样说呢,火肯定与燃烧有关,没有燃烧就没有火。人类可以感知的燃烧现象,意味着人类可以看得见。有火苗是火,有冒烟现象也是火,没有火苗没有冒烟只有火炭在燃烧也是火。 火没有明确的物理定义和化学定义,是很早就存在于人类生活中的一个概念。

火的英文单词是FIRE。我们看看英文字典是怎么解释的?
WordNet English Dictionary
fire  
n.
1.
the event of something burning (often destructive)
they lost everything in the fire
2.
the process of combustion of inflammable materials producing heat and light and (often) smoke; flame, flaming
fire was one of our ancestors' first discoveries
3.
the act of firing weapons or artillery at an enemy; firing
hold your fire until you can see the whites of their eyes
they retreated in the face of withering enemy fire
4.
a fireplace in which a relatively small fire is burning
they sat by the fire and talked
5.
intense adverse criticism; attack, flak, flack, blast
Clinton directed his fire at the Republican Party
the government has come under attack
don't give me any flak
6.
feelings of great warmth and intensity; ardor, ardour, fervor, fervour, fervency, fervidness
he spoke with great ardor
7.
once thought to be one of four elements composing the universe (Empedocles)
8.
a severe trial
he went through fire and damnation
v.
1.
start firing a weapon; open fire
2.
cause to go off; discharge
fire a gun
fire a bullet
3.
bake in a kiln so as to harden
fire pottery
4.
terminate the employment of; give notice, can, dismiss, give the axe, send away, sack, force out, give the sack, terminate
The boss fired his secretary today
The company terminated 25% of its workers
5.
go off or discharge; discharge, go off
The gun fired
6.
drive out or away by or as if by fire
The soldiers were fired
Surrender fires the cold skepticism
7.
call forth   (emotions, feelings, and responses); arouse, elicit, enkindle, kindle, evoke, raise, provoke
arouse pity
raise a smile
evoke sympathy
8.
destroy by fire; burn, burn down
They burned the house and his diaries
9.
provide with fuel; fuel
Oil fires the furnace
仔细看英文解释第1条和第2条,从上述解释可以看出,火的基本意义是指一种燃烧现象。

还有其它英文字典,其解释是类似的。

由此可以看出,搞清楚概念很重要。 如果我们概念都不明确就回答问题,容易南辕北辙。

此外,由于现代科学的历史不长,人类常用的很多概念和表达按照现代科学认知是完全错误的。我列出一些词语和表达:
彩虹、蓝色的大海、蓝天、
太阳升起、太阳落山、心爱的人、心肝宝贝、
黄金、火山、白衣等等。



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