三十九、校园之大
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“怎么样?听懂了么?”
半个小时之后,余勇也用关爱的眼神看着吕璐等人。更具体一点说,是关爱智障的眼神。
余勇知道自己并没有真正弄懂题目的解题过程,甚至在大学毕业之前自己能不能弄懂都在两可之间。既然如此,他相信面前这些连微分几何都没有学过的生物系女生,这辈子都不大可能弄懂。所以,他只是照猫画虎,复述高伯助的讲解过程,至于讲没讲错?信不信他把具6维群G的各向同性和均匀的3维单连通流形M^3说成4种,再捏造出一个爱因斯坦空间E^3,对面这些女生都不会发现?
他有这个自信!
吕璐听了半天,犹犹豫豫地说道:“师兄,能麻烦你把解题过程写下来么?”
余勇干脆把高伯助涂抹的那几张纸直接往吕璐面前一推:“喏,都在这里。”
吕璐看着满纸鬼画符般的公式,东一榔头西一棒子的数学术语,顿时一个头两个大:“这是解题过程?怎么感觉像是草稿纸?”
什么叫感觉像是草稿纸?分明它就是草稿纸!
余勇依旧故作高深:“放心吧!能看懂的,这就是解题过程;看不懂的,你就算把解题过程雕上花、镶上钻,他还是看不懂!”
“好吧。”
吕璐最终还是相信了专业人士的劝说。没办法,不听不行,谁让自己一窍不通呢?
第二天中午,被宰了一刀、到现在还觉得肉痛的吕璐早早就候在学二食堂门口,远远看到江水源过来,便主动迎了上去:“师弟,你怎么才来!”
师、师弟?咱们很熟吗?
江水源眉心跳了跳,说话依旧温和:“有事?”
“没事就不能找你么?再怎么说,咱们也是见过两面的老朋友。”相貌普通到平均线以下的灰姑娘,用恶俗而且生硬的技法尬撩道。可惜她的气质、她的谈吐、她的相貌都支撑不起她的幽默,现场气氛一度非常尴尬。在周围人灼灼烤人的眼神里,她挠了挠头:“其实是昨天你给我的题目,我做出来了!”
“做出来了?”
江水源震惊了。虽然题目是他随手翻的,但内容还是有印象的,这应该涉及到广义相对论中的流形问题,自己都还没摸到边,这位学生物的大一女生居然就这么不声不响地做出来了?如果没猜错的话,生科学院应该连微分几何都不学吧?
难道,每个学校都有传说中的扫地僧?
难道,面前这位貌不惊人的小姑凉就是大隐隐于市的独孤求败?
江水源试探着问道:“你采用的宇宙模型是什么?”
“费里德曼模型?”吕璐不确定,但她昨天只听到了这个名字。
“!”
啊嘞,还真是高手啊!江水源顿时对这个不起眼的小姑凉刮目相看,说话语气都敬重三分:“厉害、厉害!你是怎么学的微分流形?自学的还是?”
“这你就别管了!”得到小帅哥的认可,吕璐心里甜得跟蜜似的,但她还是尽力保持低调,毕竟偷来的锣鼓不敢敲,稍微一问就会露馅。然后从口袋里掏出那张草稿纸拍了过去:“呐,这是解题思路,你拿回去自己慢慢领悟吧!”
江水源随手打开那几页纸,上面潦潦草草写着一堆名词和方程,根本不像解题思路,而且就他浅薄的鉴别能力来看,这也不像女孩子的笔迹。他又接着问道:“那你为什么采用费里德曼模型?”
这个问题说简单也简单,只要说费里德曼模型是主流的标准宇宙模型就可以。
但这个问题说难也难,因为要涉及到核物理、粒子物理、相对论、量子力学等对宇宙起源和演化的解释,尤其是要注意到我们目前在残留的背景辐射中尚未发现有各向异性。在宇宙演化的现阶段,在充分大的尺度内,物质的分布可以视为各向同性和均匀的,所以在估算宇宙年龄时可以采用费里德曼模型。
——这对生物系大一学生来说,就有点超出知识边际了。吕璐顿时梗在那里:“呃……这种问题,你回去自己慢慢悟,老吃别人嚼过的馍,以后怎么健康成长!”
她这一说,自然就露了怯。江水源笑笑,把几页纸叠起来夹进书里:“多谢!”
“帮你这么大的忙,一句‘谢谢’是不是有点太轻飘了?”
“那你说该怎么谢?”
『加入书签,方便阅读』
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