V2EX tyndall effect

Tyndall Effect

定义 Definition

廷德尔效应:当一束光穿过胶体或含有微小悬浮颗粒的混合物时,光会被颗粒散射,从而使光路变得“可见”的现象。常用于区分溶液胶体/悬浊液。(该词组在不同学科语境下也可能被更宽泛地用于指“可见光束”的散射现象。)

发音 Pronunciation

/tndl fekt/

例句 Examples

A flashlight shows the Tyndall effect in fog.
手电筒在雾中会显出廷德尔效应。

In the lab, we used the Tyndall effect to confirm that the mixture was a colloid rather than a true solution, because the light beam became visible as it passed through the sample.
在实验室里,我们用廷德尔效应确认该混合物是胶体而不是真正的溶液,因为光束穿过样品时变得清晰可见。

词源 Etymology

Tyndall 来自19世纪爱尔兰物理学家 John Tyndall(约翰廷德尔) 的姓氏。廷德尔研究光与微粒/介质的相互作用(包括散射现象),后来该类现象在教学与科普中常以他的名字命名为 Tyndall effecteffect 意为“效应、现象”。

相关词 Related Words

文学与经典作品 Literary Works

  • 《Encyclopaedia Britannica》(《大英百科全书》):在“胶体”“散射”等条目中常提及 Tyndall effect 作为胶体鉴别与光散射的典型例子。
  • 大学普通化学/物理化学教材(如《General Chemistry》《Physical Chemistry》类教材):在“胶体与溶液”“光的散射”章节中经常以 Tyndall effect 作为核心术语出现。
  • 中学与大学科普读物(光学与材料/胶体主题):常用“雾中车灯、牛奶/淀粉水中的光束”等例子说明 Tyndall effect
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