Book II chapter 35

On a Perpetual Motion Machine, mentioned by authors, by means of the attraction of a loadstone.

C ardan writes183 that out of iron and the Herculean stone can be made a perpetual motion machine; not that he himself had ever seen one, but only conceived the idea from an account by Antonius de Fantis184, of Treves. Such a machine he describes, Book 9, De Rerum Varietate. But they have been little practised in magnetick experiments who forge such things as that. For no magnetick attraction can be greater (by any skill or by any kind of instrument) than the retention¹. Things which are joined and those which are approaching near are retained with a greater force than those which are enticed² and set in motion, and are moved; and that coition is, as we have shown above, a motion of both, not an attraction of one. Such a machine Peter Peregrinus feigned³ many centuries before or else depicted⁴ one which he had received from others, and one which was much better fitted for the purpose. Johannes Taysnier published it also, spoiled by wretched figures, and copied out the whole theory of it word for word. O that the gods would at length bring to a miserable⁵ end such fictitious⁶, crazy, deformed⁷ labours, with which the minds of the studious are blinded!

1 retention   

n.保留，保持，保持力，记忆力

参考例句：

• They advocate the retention of our nuclear power plants.他们主张保留我们的核电厂。
• His retention of energy at this hour is really surprising.人们惊叹他在这个时候还能保持如此旺盛的精力。

2 enticed   

诱惑，怂恿( entice的过去式和过去分词 )

参考例句：

• He enticed his former employer into another dice game. 他挑逗他原来的老板再赌一次掷骰子。
• Consumers are courted, enticed, and implored by sellers of goods and services. 消费者受到商品和劳务出售者奉承，劝诱和央求。

3 feigned   

a.假装的，不真诚的

参考例句：

• He feigned indifference to criticism of his work. 他假装毫不在意别人批评他的作品。
• He accepted the invitation with feigned enthusiasm. 他假装热情地接受了邀请。

4 depicted   

描绘，描画( depict的过去式和过去分词 )； 描述

参考例句：

• Other animals were depicted on the periphery of the group. 其他动物在群像的外围加以修饰。
• They depicted the thrilling situation to us in great detail. 他们向我们详细地描述了那激动人心的场面。

5 miserable   

adj.悲惨的，痛苦的；可怜的，糟糕的

参考例句：

• It was miserable of you to make fun of him.你取笑他，这是可耻的。
• Her past life was miserable.她过去的生活很苦。

6 fictitious   

adj.虚构的，假设的；空头的

参考例句：

• She invented a fictitious boyfriend to put him off.她虚构出一个男朋友来拒绝他。
• The story my mother told me when I was young is fictitious.小时候妈妈对我讲的那个故事是虚构的。

7 deformed   

adj.畸形的；变形的；丑的，破相了的

参考例句：

• He was born with a deformed right leg.他出生时右腿畸形。
• His body was deformed by leprosy.他的身体因为麻风病变形了。