Terentius, Johannes; Zheng, Wang 王徴
,
Yuan xi qi qi tu shuo lu zui 遠西奇器圖說錄最
,
[1830]
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<
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id
="
N10D00
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n
="
2
">
<
pb
xlink:href
="
X03/01/209.jpg
"/>
<
lb
/>
<
p
type
="
main
">
<
s
id
="
N12554
"> 假如不用輪法,欲起千斤之重,其費
<
lb
/>
時止一刻耳。</
s
>
<
s
id
="
N12559
"> 若用此輪法,則費時當
<
lb
/>
須四刻。</
s
>
<
s
id
="
N1255E
">蓋用力則省,而為時則多也。</
s
>
<
s
id
="
N12561
">
<
lb
/>
</
s
>
</
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>
<
p
type
="
head
">
<
s
id
="
N12568
">第六十三款 有重有力,欲用輪起。</
s
>
<
s
id
="
N1256B
">求輪法。</
s
>
<
s
id
="
N1256E
"/>
</
p
>
<
p
type
="
main
">
<
s
id
="
N12573
"> 有重為六十斤,能力十斤。</
s
>
<
s
id
="
N12576
">用ae直
<
lb
/>
線為軸與輪兩半徑。</
s
>
<
s
id
="
N1257B
">用比例法:
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lb
/>
</
s
>
</
p
>
<
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type
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">
<
s
id
="
N12583
">一 六十斤 為重與力之總數
<
lb
/>
</
s
>
</
p
>
<
p
type
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main
">
<
s
id
="
N1258B
">二 十斤 為力之數
<
lb
/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
id
="
N12593
">三 十四分 為ae直線之分數
<
lb
/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
id
="
N1259B
">四 二分 為ec之分數,即得軸之半徑,所以ca十
<
lb
/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
id
="
N125A3
"> 二分為輪之半徑也。</
s
>
<
s
id
="
N125A6
">依賴前五十八款a
<
lb
/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
id
="
N125AE
"> 力準等于e係重,故得此法。</
s
>
<
s
id
="
N125B1
"/>
</
p
>
</
chap
>
</
body
>
</
text
>
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