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The Weak and the Strong-Cedars and Oaks

机译：弱者和强者雪松和橡树

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摘要

I feel obliged to begin this column by relating an embarrassing incident. Several years ago, a student came into my office with a standard No. 2 lead pencil—I don't remember the brand, but it had the usual hexagonal shape and yellow paint. He asked if I could please identify the wood. I pulled out my penknife to smooth an end for viewing with my hand lens. I could see a porous structure, but was having difficulty even placing it into a softwood or hardwood category. The student sat patiently with a placid expression while I struggled on. After about five minutes—just as I was about to postpone my agony by suggesting I might have to conduct a more rigorous analysis with a microscope—I noticed that the pencil had a bit more flex than I associate with wooden pencils. I quickly lit an alcohol lamp and held the pencil over the flame for a few seconds. Sure enough, it began to bend: it was a thermoplastic resin replica of a wood pencil.
机译：我觉得有必要通过令人尴尬的事件来开始本专栏。几年前，一位学生带着标准的2号铅笔进了我的办公室。我不记得这个品牌，但是它具有通常的六角形和黄色油漆。他问我能否请您确认木头。我拔出铅笔刀使一端光滑，便于用手镜观看。我可以看到多孔结构，但是即使将其放入软木或硬木类别中也遇到困难。我努力奋斗的时候，学生耐心地坐着，表情平静。大约五分钟后（正好通过暗示我可能不得不用显微镜进行更严格的分析来推迟我的痛苦），我注意到铅笔的弯曲度要比与木制铅笔相关的弯曲度大。我迅速点亮了酒精灯，将铅笔放在火焰上几秒钟。果然，它开始弯曲：它是木笔的热塑性树脂复制品。

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  • 来源
    《WoodenBoat》 |2005年第185期|p.107-109|共3页
  • 作者

    Richard Jagels;

  • 作者单位

    Forest biology at the University of Maine, Orono;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水路运输;
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