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魔界狂想曲- 第1749章 挖井-玄幻奇幻-萬花小說
当前位置:萬花小說>书库>玄幻奇幻>魔界狂想曲> 第1749章 挖井

第1749章 挖井

  現在他們有四五把鐵鍬。


  輪流挖井。


  對這些原始人來說都很新鮮。


  先是挖坑,再越挖越深。


  不到四米深度就見到了地下水。


  繼續加深。


  井底的直徑大約有三米。


  供四十多人飲用是沒問題的。


  馬林糊塗一件事,那就是井的四壁是不是要砌石頭防止泥土坍塌。


  想了一下,覺得應該是這樣子。


  先把井底又挖深了一米左右。


  接著從上麵向下吊石頭,用來砌牆,把井的四壁給保護起來,避免坍塌。


  砌石頭花了不少時間,因為要搭架子用來攀爬。


  砌好之後等待半天,井水變得澄清。


  用捅提上來,非常的幹淨清澈,喝起來口感不錯,既沒有異味,也不太硬。


  可以直接喝。


  雞毛村的居民都心情大好。


  馬林等人心情也很好。


  這便是鐵器的作用。


  先前馬林與‘黑虎’等人四處尋找原始部落,其中不少都是從河裏取水喝,他們當時也跟著喝河水,即使有心挖井也沒有工具。


  現在有了鐵器,情況明顯就不同了。


  此後可以一直喝到比較幹淨的水了。


  馬林對南方的部落充滿了擔心,覺得那些原始人的生活狀況可能特別差,需要盡快找到他們並提供幫助,尤其是要傳授各種生活技術。


  於是沒有在雞毛村多耽擱,十八人的隊伍這就出發了。


  大家都有鐵矛尖、鐵箭頭。


  這些人遇到老虎都不怕。


  但是為了避免與猛獸發生衝突,他們一邊前進,一邊敲著一個罐子,發出響亮的聲音,猛獸們遠遠的聽到人來了,就可以躲開。


  馬林很想發明出鼓這種樂器來。


  他不知道鼓是怎麽製作的,需要花費多少功夫。


  製作一個木桶,上麵蒙一張皮革,是不是就能夠當做鼓使用呢?


  在一個陶器罐子上蒙一張皮革,能不能當鼓用呢?

  馬林自己試驗的結果是,陶器共鳴太差了,不適合當做鼓的共鳴箱。


  可是隨便做個木桶就能夠當共鳴箱了麽?


  他滿心裏都是疑問。


  此外他還想製作別的樂器。


  尤其是吹奏型的樂器。


  比如說用竹子製作的笛子和用陶土燒製的那種有很多孔的陶笛。


  但是他並不知道它們的原理。


  他知道樂器能夠發生是因為駐波現象。


  但是並不知道進一步的細節。


  笛子似乎需要簧片,至於為什麽需要簧片,他就不知道。


  他小時候見過別人的笛子,他怎麽吹都吹不響,因為上麵沒有簧片或者類似簧片的東西。


  因為不知道簧片的原理,即使想進行製作也做不到。


  那麽像是二胡那樣子的琴,或者吉他、琵琶那樣子的琴,好製作麽?

  這又有了個問題。


  用什麽製作琴弦?

  獸毛麽?

  他以前聽說過馬鬃琴,馬鬃毛較長,真的可以當弦麽?

  他從未認真的看過別人彈吉他或者琵琶。


  它們的聲音到底是怎麽發出的?

  怎麽進行控製的?

  是不是一根弦便能夠發出七種聲音?

  一隻手通過按壓控製弦的長度,另一隻手撥弦一下,就能夠產生想要的駐波,經過下麵的共鳴箱的放大,就成為了音符。


  那麽,為什麽一張琴要有這麽多根弦呢?


  他的理解是哪裏出了錯呢?

  他是非常的想製作出幾種樂器來。


  原始人也需要精神文化生活。


  有了樂器之後大家的生活會變得開心很多。


  不管是什麽,多想發明出一種出來。


  就算音色不好聽都不要緊。


  他又想起了自己以前看過的一個電視節目。原始人製作的骨笛,隔了七八千年依然能夠演奏。


  他能夠製作骨笛麽?


  它們怎麽發聲啊?

  再考慮竹笛,他現在有弓鑽,可以比較輕鬆的給竹子打孔。


  隨便打出七個孔,它就能夠用於吹奏了麽?

  它的原理到底是什麽?

  彈琴的時候,手按住琴弦,便能夠調節它的長度,從而調節它的振動頻率,發出想要的音符。


  笛子的原理是什麽呢?


  竹管應該是個共鳴腔,他對此比較確信。


  那到底是什麽產生震動呢?


  簧片?


  這麽一想覺得真是合理。


  就像是一片紙條,對著它吹氣它就會震動。


  嘟嘴的時候吹氣,嘴唇也會震動。


  拿一片樹葉含在嘴唇間,吹一下它也會震動,還發出聲音來。


  馬林以前曾經把柳樹葉、蘆葦葉含在嘴唇間吹出聲音來。


  笛子既然是吹奏的樂器,原理應該跟這種樹葉很接近。


  把一片樹葉貼在笛子的進氣口,兩側帶有空隙。一吹它也會震動起來。


  馬林認為自己的這個推測應該是對的。


  那麽問題又來了,音符是怎麽更換的?

  笛子上一堆孔,為什麽堵上幾個孔,就可以發出不同的聲音來?


  這件事真是太神奇了。


  把所有孔都給堵上,單獨打開不同的孔,氣流的速度就會出現不同,因而簧片的震動頻率也會不同?


  不同的孔與嘴巴的距離是不同的。


  吹出的氣流的速度會不同麽?


  也有種可能是,氣流的方向不同。


  同樣強度的氣流從不同方向流出,使得簧片產生不同的震動。


  於是便產生了不同的音符。


  那麽問題又來了。


  吹口哨可沒有簧片在震動,為什麽能夠發出聲音來呢?

  應該是嘴唇在震動吧。


  他認為自己對笛子的原理的判斷乃是正確的。


  手上就有竹竿,他要把洞眼給開在哪裏?

  晚上他就在嚐試用弓鑽給竹竿打眼。


  一個眼開的大一點,把一片蘆葦葉粘在這個孔旁邊,旁邊再開幾個小孔,看是否能夠發出聲音來。


  其實這樣子確實能夠發出聲音來,但是很難控製。


  用每個小孔發音都比吹口哨難很多,想轉音更是難。


  反正就是連想吹響都不容易,想吹出調子來更是難。


  他是隻打了三個孔做實驗。


  有一個孔無論怎麽吹都不響,一個孔比較容易就能夠吹出哨聲來,還有一個得費很大力氣才能吹出哨聲來。


  他高興的是確實有一個孔能夠吹出哨聲。


  他確信把洞眼給打在不同的位置能夠改變哨聲對應的音符。


  但是他這製作方法似乎太粗糙。


  他是非常希望大家能夠有笛子吹,有琴能彈。


  但是製作起來難度太高了。


  對於琴,他最不能理解的就是為什麽它們有很多根弦,一根弦就能夠發出七種音符了吧?那麽為什麽要有那麽多弦呢?這麽多弦是怎麽互相配合彈出曲子的?

  又走了一天。


  傍晚的時候看到了七八名原始人正抬著一頭野豬不知道走向哪裏。


  馬林這邊帶了雞毛族的向導。


  向導大聲的喊,打招呼。


  新遇到的是野鴨部落,他們喜歡在頭上插野鴨的羽毛。


  野鴨部落看到馬林這隊人,明顯非常驚訝,還有點緊張。

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