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魔界狂想曲- 第1717章 湖-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1717章 湖

第1717章 湖

  他們可以用紙糊燈籠,或者用布糊燈籠,晚上挑著出去串門,檢查牲口棚,諸如此類。


  燈油如今采用動物脂肪。


  野外死掉的動物,肉不能吃,卻能拿來煉油。


  所以馬林擁有足夠的動物脂肪。


  教原始人算術是件非常費力的事情。


  他們一天肯聽一小時課就是好的了。


  他沒有黑板,所以就在木板上用炭筆寫寫畫畫。


  木板是刨出來的。


  他這裏還有很多事情可以做。


  織布機他尚未改造成功,目前這種樣子非常的蠢。


  帶輻條的車輪沒有製作成功,完全沒有思路。輻條的問題是,安裝困難。


  他心裏想采用一種做法,先把輻條給安裝好,一個大圈內部有個小圈,兩個圈之間裝滿輻條,再把這個整體給固定到更大的輪圈和車軸上。


  這樣子安裝起來就會比較容易。


  但是牢固度很是令人擔憂。


  此外弩他也沒有製作成功。


  他正在考慮另一種製作弓的辦法,弩是用弓改造出來的。


  原來他是用一整根木頭製作弓。


  現在他可以考慮把弓給分為三部分。


  中間一部分,非常的硬,短,在兩側各釘上一段弧。


  它有什麽好處?

  中間這部分可以向內彎,兩側的弧向外彎,接近M形,隻是弧度更光滑。


  他不知道反曲弓是不是這麽製作的。


  有啥好處?


  好處就是這種反向彎的弓,拉起來可以特別有力氣。


  原來他沒有鐵釘,現在有了。


  如果中間這段特別有力,那麽這張弓也會特別有力。


  他幾乎是立馬就進行了實驗。


  一塊老榆木,借助線鋸和刮刀,製作成新月形,邊緣反向彎曲,長度隻有半米。


  很寬,也很硬。


  再製作兩根弧形木條,分別釘在上麵那根木頭的左右兩邊,形成左右對稱關係,而且這兩段的彎曲方向與中間那段的彎曲方向完全相反。


  用很多根釘子釘好。


  釘子頭敲成橫向,不容易崩掉或者脫落。


  橫向再纏無數道線,也是為了防止連接處受力脫落。


  這是他自己的想法。


  那麽,問題又來了,他把一塊木材給打磨成這種反曲的形狀,不行麽?


  感覺是不行。木頭可能帶有天然的弧度,順應這種弧度製作出來就比較結實,違背的話就不那麽結實,力道也跟不上。


  拉了幾下,發現它確實很有力,很難拉開。但是結實程度似乎很成問題。


  他完全不知道反曲弓的原理。


  按照上述方式,是否可以把更多木片釘在一起,製作出更強力的弓呢?

  那麽把多個木片釘在一起比起一塊單獨的厚木片有什麽優勢呢?


  不知道。


  於是強化弓弩的計劃就暫停了。


  製作帶輻條的車輪、織布機的計劃也暫停了。


  教大家算術的課程正在進行中,但是原始人沒有耐心學習,一天肯花一小時學習就不錯了。


  其實馬林還非常關心漁網是怎麽製作的。


  金水村東邊幾十裏有一片湖,長寬都有七八裏,算是不小了。裏麵有很多水產。


  如果有網,很適合進行捕魚。


  但是他不知道漁網是什麽原理的。


  為什麽漁網撒下去能夠捉到魚呢?


  撒網的時候應該怎麽撒?

  他滿心都是疑問。


  魚籠他倒是知道該怎麽下,還知道用漁網和竹竿一起圍出一片魚容易進去不容易出來的區域。


  這種捕魚法肯定不如撒網。


  那麽,怎麽撒網呢?網應該製作成什麽樣子?

  他知道一種捉魚的辦法。


  製作一個巨大的網兜,它的開口非常大,有幾米的直徑。


  把它給放入水裏,拖著走一小段,然後提上來。


  如果它上方的水中有魚,就會落入網中。


  如果魚很多,這個網兜就會變得非常的沉,於是需要多個人一起把它給拉上來。


  漁網是根據這個原理製作出來的麽?

  它像個口很大的口袋,開口位置係著多根繩子,握在漁人手中,收網的時候它自動張開口,把魚給兜進去?


  越是想越覺得這是個可行的辦法。


  怎麽保證網被撒下去之後會張開呢?

  怎麽保證拉網的時候它會張開的更大呢?

  也許應該給網的底部添加一些擋水的東西,收網的時候,開口處更容易被拉回來,而網底會自發被拖在後麵。


  還有種做法。


  可以讓漁網分為兩部分,一部分綁上木片之類的東西,入水後會上浮,另一部分綁上石頭,入水後會下沉,網底再綁個重石頭,撒網的時候它會自發的飛的更遠。


  這樣子網撒下水之後就自發的長大了口。


  還有個做法,用兩艘船拉一張大網,這樣子就不愁網的口張開的不夠大了。


  讓這網的開口有十來米寬,五六米深。


  這樣子捕魚就比較有效率了。


  問題又來了。


  船應該怎麽製作?


  羊皮口袋都能夠做成船。


  現在什麽圖紙都沒有,隻能自己出主意。


  對他來說,難題在於木板上的縫怎麽封死。


  總不能用一整塊木頭來製作船吧?

  或許他可以燒羊皮,把那種熔化的黏糊糊的物質給滴到木頭的縫上。


  或者用動物油脂來封住木頭的縫。


  或者蜂蠟。


  動物油脂他有不少。


  動物油脂凝固的太慢。


  所以用蜂蠟比較好。


  他的心情真是奇怪。


  他自己從沒聽說過誰用蜂蠟來對船隻的木頭的縫進行密封的。


  自己做的有沒有錯?


  以前他從沒留意過類似的問題。


  當然還有個法子。


  他可以選用更大塊的木頭用於船的底板,它自己就能夠把上方的重物都給托起來,但是這種做法非常的不靠譜。


  現在大家有了魚鉤,挺喜歡出去釣魚的。


  想清楚怎麽製作小船了沒有?

  沒,縫隙怎麽處理,對他來說實在是太難了。


  先不進行考慮了。


  先製作木筏就行了。


  製作好漁網,兩種大小的,一種開口十米寬,六米高,拖著的網有五米長,另一種開口二十米寬,十米高,拖著的網有七米長。


  用兩隻木筏拖著這麽兩張網在湖裏遊一圈。一旦覺得沉,就收網,兩隻筏子靠到一起,網也提起來。


  遇到魚多的地方說不準一網能夠捉個上百斤魚。


  這些數字他都是很隨意的設計出來的,未必靠譜。


  木筏子比較好製作。


  小型的漁網也比較好製作。


  但是想捉住魚與運氣有很大關係。


  網眼長寬都有六厘米,可不可以?


  他不知道。


  所有參與捕魚的人都要穿有救生衣。


  就是把一張小的網穿身上,網裏有幾塊木頭。


  春季的水溫其實已經可以捕魚了。


  這麽一思考,覺得這樣子捕魚還真的可行。


  如果網被掛住了,就必須有人下水。

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