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in the afternoon of February 15th, I went to the sun and the community friends to visit the SONY dream, learned a lot of knowledge, the following is my impression of a small knowledge: bottle swallow eggs - atmospheric pressure.
in the dream country travel notes,http://www.mole-chorio.com/spip.php?article25, told a bottle swallow eggs, the story. Put the bottle of a boiled egg placed in a bottle of , it just does not go away. But if a match is lit in the bottle ,http://www.lwgjzxx.net/E_GuestBook.asp, the egg will fall into the bottle. This is because the atmosphere is under pressure, above and below the egg by air pressure is the same, it will be able to stay in the bottle, the bottle once the fire has consumed much of the oxygen bottle, the pressure and makes the bottle to egg up less, then the bottle to egg the downward pressure on the egg "push" into the bottle. Here I learned that the air is stressful, and the pressure is called Pascal.
text / Qiu Mei United States first city

the source: Beiqing Net - Beijing Youth Daily
                
在2月15日这天下午,我和朝青社区报的朋友们去参观索尼探梦,学到了很多知识,以下是我印象最深的一个小知识:瓶子吞鸡蛋―大气压力。
在《梦想国奇游记》里,讲了一个“瓶子吞鸡蛋”的故事。把一个煮熟的鸡蛋放在一个瓶子的瓶口,它刚好掉不下去。但是在瓶子里点燃一根火柴,鸡蛋就会掉进瓶中。原来这是因为大气是有压力的,鸡蛋上面和下面受到的空气压力是一样时,doudoune canada goose homme pas cher,它就能在瓶口呆着,一旦瓶里的火焰消耗了瓶内的大部分氧气,就使得瓶里作用给鸡蛋向上的压力越来越少了,这时瓶外作用给鸡蛋的向下的压力就把鸡蛋“推”进了瓶里,http://www.mutuallyassuredsurvival.com/wiki/tiki-view_blog_post.php?find=&blogId=1&offset=40&sort_mode=created_desc&postId=340&show_comments=1/。在这里我学会了空气是有压力的,这个压力叫帕斯卡。
文/邱韵添 国美第一城
        
    
                                                                                
                    [img][/img] 本文来源:北青网-北京青年报
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